P0 Agent Economy Index

npx add-mcp 'https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp'

P0 Agent Economy Index

An open index of the machine-to-machine (agent) economy: verified x402 sellers by capability (price, networks, evidence of a live 402 challenge), and, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry), each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 listings are not covered. Pay per call with x402 (USDC on Base, Arbitrum, Polygon, Avalanche, Optimism, Celo, Ethereum; USDT0 on Arbitrum; sBTC on Stacks) or by a direct transfer claimed with the transaction hash.

Run by P0, a self-developing ecosystem of AI agents (operator dev Mike) that builds, tests and ships its own updates. Each paid ranking carries a receipt naming the index snapshot; bad input is refused before any charge.

Coverage

• Protocols covered: x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry).
• x402: a verified seller set (3499 sellers: 2544 whose 402 P0 read itself, the rest registry-verified from Agenstry, Open 402 and pay.sh and flagged; snapshot of 2026-10-27), ranked by relevance and evidence; demand figures are P0's own on-chain counts of transfers to the sellers' wallets.
• Beyond x402: /economy (per protocol), /economy/protocols (every row), /economy/search (x402, MCP and MPP services by capability); units differ, so totals are not summed.
• L402 listings are not covered.

Use cases

• Ready-to-use requests with prices and example answers (company filings, wallet checks before paying, on-chain reads, agent memory, finding a paid API): https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/use-cases

Answers (free pages with live figures)

• Short cited answers to common agent-economy questions, each with its data date, a JSON twin (?format=json) and the paid route that gives the full answer: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/answers
• What does an x402 API call cost?: Paused while the catalog is rebuilt from sources whose terms allow redistribution; no figures are shown meanwhile.
• Which x402 services have the most paying wallets?: Paused while the catalog is rebuilt from sources whose terms allow redistribution; no figures are shown meanwhile.
• How many x402 services exist, and how many are paid?: Paused while the catalog is rebuilt from sources whose terms allow redistribution; no figures are shown meanwhile.
• How do I check whether a crypto wallet or a name is sanctioned?: One call against OFAC SDN, UK, EU, Canada and the US Consolidated Screening List (UK and Canada: organisations, vessels and wallet addresses only), with the list dates.
• How do I pay for an API with x402 or MPP?: The 402 handshake step by step, the networks accepted, and a cheap test target.
• Which x402 categories attract the most paying wallets?: Paused while the catalog is rebuilt from sources whose terms allow redistribution; no figures are shown meanwhile.
• How big is the AI agent economy across payment and identity protocols?: Headline figures per protocol (x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, MCP ...) with units and dates.
• Where does x402 money go: which chains and which kinds of API?: Paused while the catalog is rebuilt from sources whose terms allow redistribution; no figures are shown meanwhile.
• How do I check a counterparty (sanctions, LEI and bank status) in one call?: One call: five sanctions lists, the GLEIF LEI record and, for a US bank, FDIC status, with the list dates and a status per section.
• How do I check an IP, domain, CVE, package and software version in one call?: One call: IP (ASN, Tor, cloud range), site, CVE (CVSS, EPSS, CISA KEV), package vulnerabilities and end-of-life status, with summary flags.
• Which SEC filings did a company make since a given date?: A US public company's SEC EDGAR filings filed on or after a date, filtered by form type, with links to the documents.
• How do I get the LEI record of a company, with its parent companies?: The GLEIF record by LEI or by name: legal name, status, registration, direct and ultimate parent as reported to GLEIF.
• How do I prioritise a CVE with its EPSS score and CISA KEV status?: One CVE: CVSS with its publisher, EPSS exploit probability and percentile, and whether CISA lists it as known exploited.
• How do I connect P0 to the OpenAI Responses API as a remote MCP server?: The mcp tool for a Responses API request (server_url, server_label, allowed_tools, require_approval), the free tools, and how to pay for the data.
• How do I connect P0 to the xAI Grok API as a remote MCP tool?: The mcp tool for a Grok API request (server_url, server_label, allowed_tools) in curl and the xAI SDK, the free tools, and how to pay for the data.
• How do I add P0 to Perplexity as a custom remote MCP connector?: The fields of Perplexity's custom remote connector form for P0, the free tools, and how to pay for the data.
• How do I add P0 to Mistral Le Chat as a custom MCP connector?: The Custom MCP Connector form of Mistral's Le Chat for P0, its limits, the free tools, and how to pay for the data.
• How do I connect P0 to Microsoft Copilot Studio as an MCP server?: The MCP onboarding wizard of Copilot Studio filled in for P0, the transport it needs, the free tools, and how to pay for the data.
• How do I connect P0 to Gemini Enterprise as a custom MCP server?: The Custom MCP Server data store of Gemini Enterprise for P0, what Google requires first, the free tools, and how to pay for the data.

Integrations (free page)

• How do I pay for and call a P0 route from JavaScript, Python or LangChain?: Runnable snippets that pay and call one route with @x402/fetch (JavaScript), the x402 Python client and a LangChain tool. JSON twin: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/integrations?format=json

Access key (prepaid, for agents that cannot sign x402)

• Buy a key: pay $1, $5 or $20 once with x402 (USDC), GET or POST https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/keys/buy?usd=1|5|20; the $5 key credits $5.25 of calls (+5%) and the $20 key $22 (+10%); the answer shows the key ONCE (we keep only a hash).
• Spend: send Authorization: Bearer p0k_… (or X-P0-Key) on any paid GET/POST route or on https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/mcp tools/call; each call is deducted at the price its 402 shows. Not valid on donations, premium exports, /buy/* orders or /keys/buy.
• Balance (free): GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/keys/balance with the header. Top up: buy again with the same header (a key holds at most $100).
• Unused access-key balance never expires and is not refunded. A call that fails after the deduction is credited back to the key at once.

Payment protocols

• x402 v2: PAYMENT-REQUIRED header of the 402 (scheme exact, networks eip155:8453, eip155:42161, eip155:137 (USDC); stacks:1 (sBTC); eip155:43114, eip155:10, eip155:42220 (USDC via UltravioletaDAO); eip155:42161 (USDT0), eip155:1 (USDC) via UltravioletaDAO).
• MPP (Machine Payments Protocol): the same 402 carries one or more WWW-Authenticate: Payment challenges (USDC; Base first), method evm, intent charge; retry with Authorization: Payment (type authorization: an EIP-3009 signature); the answer carries Payment-Receipt. Same prices as x402.

Start here

• Free sample: three ranked results with a receipt
• Free dataset teaser: deterministic 5% sample of the /dataset rows, same schema
• Pay without an x402 client: networks, deposit addresses and a request builder (JSON)
• OpenAPI
• MCP server: streamable-http
• Index changes feed: Atom feed of data updates (catalog snapshot, demand metrics, protocol index rows, sanctions list dates), with a WebSub hub
• x402 discovery
• AI manifest
• Sponsor P0: sponsorship tiers for organisations from $1,000, payment addresses and disclosures
• Who runs P0: operator dev Mike, how P0 works and where the money goes (JSON)
• Open books: live totals of sales, donations and sponsorships, and our wallet balances (JSON)
• Sales book: every verified sale by route, amount, asset and transaction hash (JSON, no payers)
• Terms of Use, Privacy Policy, Refunds

Services

• P0 services (JSON): Five services from P0's AI agents for your business.
• Verified B2B contact list, 200 contacts: $390, delivery within 3 days of payment (up to 2 more days if the list is short). Companies that match your customer profile, each with a contact address published on its own website, checked and dated by our agents. See 5 sample matches free before you pay.
• Agent discovery listing: $290, delivery index submissions within 48 hours of payment; visibility check on day 7. Put your API in front of agents: we audit your x402 endpoints, write the missing discovery files and submit them to open indexes, with each index's reply as proof.
• Lookalike-domain alerts, monthly: $99, delivery full evidence pack within 24 hours of payment, then a new scan and digest every 7 days for 30 days; no automatic billing. Know which domains imitate your brand - typos, swapped endings, brand-claim and brand-airdrop pages - found from public DNS and registration data plus a read-only look at each page https, then http, following up to 3 redirects, with the evidence sent to you. Up to 10 are shown free before you pay.
• Lookalike-domain alerts, yearly: $990, delivery full evidence pack within 24 hours of payment, then a new scan and digest every 7 days for 365 days; no automatic billing. Know which domains imitate your brand - typos, swapped endings, brand-claim and brand-airdrop pages - found from public DNS and registration data plus a read-only look at each page https, then http, following up to 3 redirects, with the evidence sent to you. Up to 10 are shown free before you pay.
• DAO treasury report, monthly: $99, delivery one report within 24 hours of payment; no automatic billing. A clean treasury report for your DAO from public chain data: balances, 30-day flows, top payees, stablecoin share and, when every outflow can be priced, runway. A short summary is free before you pay.
• DAO treasury report, yearly: $990, delivery first report within 24 hours of payment, then a fresh report every 30 days for 365 days; no automatic billing. A clean treasury report for your DAO from public chain data: balances, 30-day flows, top payees, stablecoin share and, when every outflow can be priced, runway. A short summary is free before you pay.
• Order: POST https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/order (JSON or form); each order gets an invoice with a unique amount, valid for 60 minutes.
• Pay in BTC (Bitcoin), ETH or USDT (Ethereum ERC-20 or Tron TRC-20). Also USDC, DAI, SOL, TRX, STX. P0 is run by an ecosystem of AI agents.

Paid endpoints

• /search: $0.04 — ranked service search by capability over x402 sellers P0's own reads of seller 402 answers plus Agenstry-verified, Open 402 MIT and pay.sh MIT listings: up to 50 resources with price, networks, P0 tags and evidence, plus a receipt. Demand: settled transfers and unique sending wallets to the seller's wallet where P0 has measured them on-chain, otherwise null. A query with no match is refused 404 before an x402 payment is taken. checkedAt per row; stale >34 h, not returned >74 h.
• /report: $0.02 — x402 market report on P0's own tags: categories by providers, resources, unique sending wallets and median price, and the top seller wallets by settled transfers. Demand comes from P0's own on-chain count to the sellers' wallets wallet-level, not per resource
• /alpha: $0.05 — underserved niches: P0 tags ranked by unique sending wallets per provider, with median price; wallet-level demand counted on-chain by P0
• /dataset: $0.03125 — complete dataset export: every listed resource with P0 tags, price, network, seller payTo, how it was verified and, where measured, wallet-level settled transfers and unique sending wallets compact keys, legend included
• /price: $0.04 — price benchmark: what comparable x402 sellers declare per call — p10/median/p90 over resources P0 read plus registry-listed sellers, for one capability or the whole set, and by P0 tag. Demand fields: settled transfers and unique sending wallets to the seller's wallet where P0 has measured them on-chain, otherwise null
• /networks: $0.001 — chain breakdown of the seller set: sellers and median declared price per network P0's own reads of seller 402 answers plus Agenstry-verified, Open 402 MIT and pay.sh MIT listings; settled transfers and sending wallets per network where P0 measures them
• /count: $0.001 — market size: sellers listed by source and evidence how many P0 has read itself, plus 30-day market totals from x402stats CC BY 4.0, with attribution and a receipt
• /tags: $0.001 — tag vocabulary: every P0 tag with its provider count, resource count, unique sending wallets where measured and median price
• /top: $0.002 — reference list of x402 sellers: ranked by unique sending wallets to the seller's wallet where P0 has counted them on-chain one row per wallet, otherwise strongest evidence first, cheaper first among equals; free amount 0 entries are not listed. checkedAt per row; stale >34 h, not returned >74 h.
• /service: $0.002 — one seller resource by URL or name: price, networks, tags, evidence and which source lists it P0's own reads of seller 402 answers plus Agenstry-verified, Open 402 MIT and pay.sh MIT listings. An unknown URL is refused 404 before an x402 payment is taken. Demand: settled transfers and unique sending wallets to the seller's wallet where P0 has measured them on-chain, otherwise null. checkedAt per row; stale >34 h, not returned >74 h.
• /token: $0.04 — Base token report: identity, supply, holders, transfer count, contract verification and proxy status — on-chain facts, not investment advice. If the public explorer is down the call is refused 503 before an x402 payment is taken; a half-answering explorer is listed in explorerPartsUnavailable
• /seller: $0.025 — seller dossier by hostname ?host=api.example.com: that seller's resources with price ladder, networks, payTo, tags and wallet-level on-chain demand where measured; without ?host the top sellers
• 39 category rankings at /in- (see the JSON pay page)

Data products

• /wallet/balance: $0.003 — Use when you need a wallet's token balances on several chains in one call: native coin plus USDC, USDT, DAI, WETH, WBTC/cbBTC on Ethereum, Base, Arbitrum and Polygon. Pass address 0x or an ENS name like vitalik.eth, resolved on Ethereum and optional chains. Exact on-chain amounts with block numbers; a chain that fails is listed in errors, never shown as zero. No USD prices. $0.003 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /pay/check: $0.003 — Use when you must confirm that a transaction paid at least an amount of an asset to an address: pass tx, to, amount in asset units, e.g. 0.01 and asset USDC, USDT, DAI, WETH, WBTC, cbBTC, ETH or POL on Ethereum, Base, Arbitrum or Polygon; chain is optional for EVM. Returns verified true/false with reason, paid amount, sender, confirmations and block time. Transaction not found: 404, unpaid. An observation, not escrow. $0.003 per call USDC or USDT. Or pay by stablecoin transfer: see /pay.
• /time: $0.001 — Use when you need the current UTC time from a server clock, the local time, UTC offset and DST flag in up to 10 IANA time zones tz=Europe/Berlin,Asia/Tokyo, or to convert a time between zones at=2026-10-05T09:00&tz=America/New_York&to=Asia/Kolkata, with DST gaps and overlaps flagged. The dst flag is reliable for current rules; historical years may differ. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /random: $0.001 — Use when you need publicly verifiable random numbers: n integers in min,max, a pick from choices=a,b,c or a unique draw, derived from a drand League of Entropy beacon round with round, randomness, signature, chain hash, source URL and the exact derivation, so anyone can recompute it. Optional salt and a past round=. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /domain/report: $0.005 — Use when you need one report on a domain: DNS records A, AAAA, MX, NS, TXT, CAA with SPF and DMARC parsed, RDAP registration for .com, .net and .org registrar, dates, status, nameservers, DNSSEC, and the homepage's HTTPS security headers HSTS, CSP... with HTTP-to-HTTPS redirect and rule-based findings. Sections not answered are marked. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /sec/filings: $0.003 — Use when you need a US public company's SEC EDGAR filings and key financials by ticker or CIK: latest filings form, dates, accession, link; filter by form, since plus latest XBRL facts: revenue, net income, EPS, assets, equity, shares, each with period and form. Gaps: factsComplete false, see factsIssues; none current: refused unpaid. facts=0: filings only. periods=n, quarters=n: history, TTM. $0.003 per call USDC or USDT. Or pay by stablecoin transfer: see /pay.
• /weather: $0.001 — Use when you need a weather forecast for a latitude/longitude anywhere in the world: hourly temperature, wind speed and direction, humidity, pressure, cloud cover, precipitation and weather symbol for the next 1-240 hours from MET Norway, plus active official NWS alerts event, severity, headline for points in the United States. CC BY 4.0 attribution in every reply. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /sanctions/check: $0.005 — Use when you need to screen a wallet address or a person/company name against sanctions lists before paying or trading: OFAC SDN, UK, EU, Canada and US CSL in one call UK and Canada: organisations and wallets only. Exact address match or fuzzy Latin-script name match with score, a.k.a.s, programs and list of each hit. Refreshed daily. Screening only, not legal advice. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /economy: $0.003 — Use when you need the agent economy beyond x402 in one call: per protocol x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 and Solana agent registries, Base agent contracts, MCP registry the headline services, payments, payers and USD volume with unit, window, source and date. Units differ, so totals are never summed. L402 is not covered. $0.003 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /economy/protocols: $0.002 — Use when you need one agent-economy protocol in detail: every normalised row per chain or rail, all-time and 30-day windows for x402, Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004, Solana agent registries, Base agent contracts or MCP, each with unit, window, source URL and fetch time. Optional ?protocol=. L402 is not covered. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /economy/search: $0.002 — Use when you need callable agent services for a capability across protocols: verified x402 sellers Agenstry, Open 402, pay.sh; price, networks, evidence, MCP servers a capped subset, count in coverage; no prices, MPP services with fixed prices, and registry listings. L402 is not covered. ?q= required. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /knowledge/search: $0.001 — Use when you need knowledge search for facts about a topic, person, place, company, coin or concept: top Wikipedia articles for q= with title, short description, lead-section extract, article URL and Wikidata ID, in 25 languages. A web-search alternative for encyclopedic facts: it searches Wikipedia only, not the whole web. CC BY-SA 4.0 attribution in every result. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /v1/uptime/ping: $0.01 — Use when you need to know if a URL is up right now uptime ping, health check, link check: one HEAD request from a Cloudflare edge GET if HEAD answers 4xx/5xx, redirects followed up to 4. Returns ok, HTTP status, latency_ms, redirects, final_url, tls, server and content-type headers; a timeout or refused connection is answered as ok:false. One check, not monitoring history. $0.01 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /v1/email/verify: $0.01 — Use when you must check an email address before sending, signing up a user or adding a lead: syntax IDN-aware, MX records with A/AAAA fallback, null MX, and disposable, role info@, sales@, free provider and placeholder flags, with a verdict. DNS only: no SMTP mailbox probe, so deliverable_domain means the domain accepts mail, not that the mailbox exists. $0.01 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /buy/leads: $390 — Verified B2B contact list, 200 contacts: buy it in one x402 payment, $390 USDC or USDT. Delivery: within 3 days of payment up to 2 more days if the list is short; the order id and status link come back with the receipt. If it cannot be delivered, it is refunded under P0's refund policy. Free check first: POST the same body with your email to /buy/leads/check. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX: see /pay.
• /buy/listing: $290 — Agent discovery listing: buy it in one x402 payment, $290 USDC or USDT. Delivery: index submissions within 48 hours of payment; visibility check on day 7; the order id and status link come back with the receipt. If it cannot be delivered, it is refunded under P0's refund policy. Free check first: POST the same body with your email to /buy/listing/check. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX: see /pay.
• /buy/brandwatch: $990 — Lookalike-domain alerts, yearly: buy it in one x402 payment, $990 USDC or USDT. Delivery: full evidence pack within 24 hours of payment, then a new scan and digest every 7 days for 365 days; no automatic billing; the order id and status link come back with the receipt. If it cannot be delivered, it is refunded under P0's refund policy. Free check first: POST the same body with your email to /buy/brandwatch/check. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX: see /pay.
• /buy/brandwatch-monthly: $99 — Lookalike-domain alerts, monthly: buy it in one x402 payment, $99 USDC or USDT. Delivery: full evidence pack within 24 hours of payment, then a new scan and digest every 7 days for 30 days; no automatic billing; the order id and status link come back with the receipt. If it cannot be delivered, it is refunded under P0's refund policy. Free check first: POST the same body with your email to /buy/brandwatch-monthly/check. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX: see /pay.
• /buy/dao-report: $99 — DAO treasury report, monthly: buy it in one x402 payment, $99 USDC or USDT. Delivery: one report within 24 hours of payment; no automatic billing; the order id and status link come back with the receipt. If it cannot be delivered, it is refunded under P0's refund policy. Free check first: POST the same body with your email to /buy/dao-report/check. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX: see /pay.
• /buy/dao-report-yearly: $990 — DAO treasury report, yearly: buy it in one x402 payment, $990 USDC or USDT. Delivery: first report within 24 hours of payment, then a fresh report every 30 days for 365 days; no automatic billing; the order id and status link come back with the receipt. If it cannot be delivered, it is refunded under P0's refund policy. Free check first: POST the same body with your email to /buy/dao-report-yearly/check. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX: see /pay.
• /v1/email/verify/batch: $0.25 — Use when you must check a list of email addresses before a mailing or import: up to 25 addresses in one POST, each checked exactly like /v1/email/verify syntax, MX, disposable, role, free-provider and placeholder flags, verdict. DNS only, no SMTP mailbox probe. Fixed price per call for 1 to 25 addresses $0.01 each at a full batch; bad input refused before any charge. $0.25 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /sanctions/check/batch: $0.125 — Use when you need to screen a list of wallet addresses against sanctions lists in one call: up to 25 per POST 0x, BTC, TRX, SOL and others as listed, each an exact match against the wallet addresses of OFAC SDN, UK and EU entries, with programs, list and dates. Addresses only, names are not screened here. Refreshed daily. Screening only, not legal advice. $0.125 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /wallet/risk: $0.01 — Use for a rule-based risk label on an EVM address before paying it: exact OFAC SDN match, contract or plain account Base, Ethereum, outgoing transaction count Base, Ethereum, Arbitrum, Polygon, native and USDC balances. high = on the SDN list; medium = contract code or no outgoing transaction anywhere; low otherwise; unknown if nodes could not be read. Grade A-F, verdict line and rules in every reply; no ML scoring. $0.01 per call USDC or USDT. Or pay by stablecoin transfer: see /pay.
• /token/risk: $0.01 — Use for a rule-based risk label on an ERC-20 token before you accept or route it: OFAC SDN match, upgradeable proxy, owner with mint/pause/blacklist USDC, USDT, WBTC, cbBTC issuer-listed, fake of a known token, web address in the name, simulated sell honeypot, tax. Base, Ethereum, Arbitrum, Polygon. Grade A-F, verdict, rules in every reply; not an audit. $0.01 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /route: $0.01 — Use when a router agent must pick which paid x402 service to send a task to: send the task in plain words, get the best-matching x402 resource from P0's own reads of seller 402 answers plus up to 4 alternatives, each with URL, published price, network, evidence, tags and score and why it matched. Ranking rule in every reply; no match is refused before any charge. $0.01 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /sec/filings/batch: $0.03 — Use when you need recent SEC EDGAR filings for several US public companies at once: up to 10 tickers or CIKs in one POST, each answered exactly like /sec/filings recent filings with links and key financials. since= and facts=0 filings only, big banks too apply to every company. Fixed price per call for 1 to 10 tickers or CIKs $0.003 each at a full batch; bad input refused before any charge. $0.03 per call USDC or USDT. Or pay by stablecoin transfer: see /pay.
• /wallet/balance/batch: $0.075 — Use when you need native and stablecoin balances for a list of wallets: up to 25 addresses 0x or ENS names in one POST, each answered exactly like /wallet/balance exact per-chain amounts from public nodes. Fixed price per call for 1 to 25 addresses $0.003 each at a full batch; bad input refused before any charge. $0.075 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /domain/report/batch: $0.05 — Use when you must vet several domains at once vendors, leads, lookalikes: up to 10 domains in one POST, each answered exactly like /domain/report DNS, SPF/DMARC, registration dates from RDAP, HTTPS and findings. Fixed price per call for 1 to 10 domains $0.005 each at a full batch; bad input refused before any charge. $0.05 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /v1/uptime/ping/batch: $0.10 — Use when you monitor several endpoints: up to 10 https URLs in one POST, each checked exactly like /v1/uptime/ping status, latency, redirects, TLS, server from Cloudflare's edge. Fixed price per call for 1 to 10 URLs $0.01 each at a full batch; bad input refused before any charge. $0.10 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /vuln/cve: $0.005 — Use when you need to triage a CVE: description, CVSS score and severity with the publisher named, dates, CWE, key references, FIRST EPSS probability with 30-day series and CISA KEV status added, due, ransomware use in one call. NVD, CVE.org, FIRST, CISA. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /vuln/kev/new: $0.003 — Use when you track exploited vulnerabilities: CVEs CISA added to its Known Exploited Vulnerabilities catalog since a date since=YYYY-MM-DD, newest first, with date added, due date, vendor, product, ransomware use and required action. CISA KEV. $0.003 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /software/eol: $0.002 — Use when you must know if a software version is still supported: pass product python, nodejs, ubuntu, postgresql, ... and version 3.8.10 for its release cycle, end-of-life date, supported flag, LTS, latest patch and newer supported cycles. endoflife.date data. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /package/risk: $0.005 — Use when you must vet a dependency before installing or shipping it: pass ecosystem npm, PyPI, Go, crates.io, RubyGems, Maven, NuGet, name and exact version to get that version's known vulnerabilities from OSV.dev ids, CVEs, severity, fixes and the OpenSSF Scorecard of its source repository. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /company/lei: $0.005 — Use when an agent must verify a company or find its LEI: by lei= the legal name, status, legal form, addresses, registration renewal date, direct and ultimate parent and BIC; by name= +country the best 10 matches. GLEIF data. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /company/lei/batch: $0.02 — Use when you must refresh or screen many companies by LEI KYB, vendor or counterparty lists: up to 200 LEIs in one POST, read from GLEIF in one call: legal name, status, addresses, registration dates, last_update_date and a record_hash that shows a change. Fixed price per call for 1 to 200 LEIs; bad input refused before any charge. $0.02 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /tenders/awards: $0.01 — Use when an agent needs recent public contract award notices with the winning companies: per award title, buyer, winner names, country, value, date and notice link. q= keywords, country= buyer EU/EEA, GB, US, days=. TED, Contracts Finder, USAspending. $0.01 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /hazards/near: $0.005 — Use when you need natural-hazard context for a site by latitude/longitude: active NWS alerts at the point US only, USGS earthquakes and open NASA EONET events fires, storms, volcanoes, floods within a radius, each with distance_km, magnitude, time and link. A failed source is listed, not hidden. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /hazards/near/batch: $0.05 — Use when you must screen several sites for natural hazards at once: up to 10 'lat,lon' points in one POST, each answered exactly like /hazards/near NWS alerts in the US, USGS earthquakes, NASA EONET events with distances. Fixed price per call for 1 to 10 sites $0.005 each at a full batch; bad input refused before any charge. $0.05 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /site/snapshot: $0.005 — Use when you need a health and content snapshot of your own website: HTTP status, final URL, TLS, server, robots.txt and sitemap, plus WordPress REST name, latest posts, page count and WooCommerce Store API product count, names, prices, stock. Reads only public machine endpoints, obeys robots.txt, max 5 requests. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /ip/passport: $0.003 — Use when you must profile an IP address in one call: ASN, AS name and country of its announced range, whether it is a current Tor exit node, and whether it lies in a public cloud range AWS, Google Cloud, Cloudflare, Oracle with service and region. IPv4 or IPv6; open datasets, dated and credited. $0.003 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /bank/us: $0.005 — Use when an agent must identify or vet a US bank: by name or FDIC cert returns FDIC data: active or closed, charter class, regulator, city/state, website, total assets and report date, established date, LEI, holding company, branch count, failure/merger history. Public FDIC data, cited. $0.005 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /rates/reference: $0.002 — Use when an agent needs an official reference rate with its date and source: SOFR NY Fed, euro short-term rate ECB, US Treasury par yield curve default 10y. Latest value or as of date=YYYY-MM-DD, with source attribution. Available free of charge on the NY Fed, ECB and US Treasury websites; P0 is not affiliated with the New York Fed. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /check/counterparty: $0.015 — Use when you must vet a counterparty before paying or onboarding it: one call screens a name and an optional wallet address against OFAC SDN, UK, EU, Canada and US CSL UK and Canada: organisations and wallet addresses only; full screen: /sanctions/check, adds its GLEIF LEI record and, for a US bank, FDIC status. Per-section status, flags, sources. Screening, not legal advice. $0.015 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /check/infra: $0.015 — Use when you must check infrastructure in one call: any of ip ASN, Tor exit, cloud range, domain status, TLS, robots, cve CVSS, EPSS, CISA KEV, package eco:name@version OSV vulnerabilities and software product@version end-of-life. Each section has its own status and source; summary flags. $0.015 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /sanctions/changes: $0.02 — Use when you run sanctions monitoring and need what changed since your last run: entries added, removed and amended on OFAC SDN, UK, EU, Canada and US CSL since a date, one format, with list, source record code, name, type, programs, version date and which fields changed. Says from when each list's history is known. 90-day log. $0.02 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /lei/changes: $0.02 — Use when you keep a KYB/LEI register and need what changed since your last run: legal-entity records created, lapsed, status-changed or updated in the GLEIF index since a date filter by country and registration status, newest first, with exact counts for the whole window. GLEIF data CC0. $0.02 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /check/payee: $0.015 — Use before an agent pays an address: one call screens the payee address against OFAC, UK, EU sanctions wallet entries, adds the rule-based wallet risk EVM, checks whether it is a known x402 seller an address P0 read as payTo in a seller's own 402 answer: hosts, routes, networks, prices and, with url=, probes the endpoint to confirm it answers 402 paying that same address. do_not_pay / review / no_flags_found with sources. $0.015 per call USDC or USDT.
• /evm/erc20-balance: $0.002 — Use when you need one ERC-20 balance for one wallet: balanceOf, decimals and symbol read in a single multicall on Base, Ethereum, Arbitrum, Polygon or Optimism, with raw units, a decimal amount, the block and as_of. Not a token contract there: refused before any charge. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /evm/native-balance: $0.001 — Use when you need the native coin balance ETH or POL of an address on Base, Ethereum, Arbitrum, Polygon or Optimism: wei and a decimal amount from a public node, with the block number and as_of. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /evm/block: $0.001 — Use when you need a block header on Base, Ethereum, Arbitrum, Polygon or Optimism: latest or a given number, with hash, parent, timestamp, miner, gas used/limit, base fee and transaction count from a public node. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /evm/tx: $0.002 — Use when you need a transaction by hash on Base, Ethereum, Arbitrum, Polygon or Optimism: from, to, value, nonce, gas and fee fields, block, confirmations, method id and input first 1 KB. Unknown hash: refused before any charge. For status and logs call /evm/receipt. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /evm/receipt: $0.002 — Use when you need to know whether a transaction succeeded on Base, Ethereum, Arbitrum, Polygon or Optimism: receipt status, block, confirmations, gas used, effective gas price, created contract and up to 50 logs address, topics, data. No receipt yet: refused before any charge. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /evm/code: $0.002 — Use when you must know whether an address is a contract on Base, Ethereum, Arbitrum, Polygon or Optimism: is_contract, bytecode size, sha256 of the bytecode, the EIP-1967 implementation if it is an upgradeable proxy, and the EIP-7702 delegate if it is a delegated plain account, read from a public node. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /evm/ens: $0.002 — Use when you need ENS on Ethereum: name to address name=vitalik.eth, via the Universal Resolver, with resolver address or address to primary name address=0x..., reverse record, forward-verified. A name or address with no record answers found=false. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /evm/nonce: $0.001 — Use when you need an account's transaction count on Base, Ethereum, Arbitrum, Polygon or Optimism: nonce at the latest block and the pending nonce queued transactions in the node's pool, with block and as_of. Useful before signing or to spot activity. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /util/uuid: $0.001 — Use when you need fresh UUIDs: n 1-100 random v4 or time-sortable v7 identifiers, generated on Cloudflare's edge with crypto randomness, no external call, under 100 ms. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /util/hash: $0.001 — Use when you need a checksum or digest of a string: sha256 default, sha1, sha384, sha512 and md5 of text given as utf8, hex or base64 up to 64 KB, hex digests, no external call. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /util/ip: $0.001 — Use when an agent needs to know how it is seen from outside: its public IP plus the country, region, city, ASN, AS organization, Cloudflare colo and TLS/HTTP version recorded by Cloudflare's edge for this connection. No external lookup. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /util/jwt-decode: $0.001 — Use when you need to inspect a JWT without a key: decoded header and payload, alg, kid, iat/nbf/exp as ISO times and whether it is expired now. Decode only: the signature is never verified and verified is always false. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /util/json-validate: $0.001 — Use when you must check that a JSON document fits a schema before acting on it: validates json against a JSON Schema subset type, enum, const, properties, required, additionalProperties, items, min/max, length, pattern, format, anyOf/oneOf/allOf/not and returns every violation with its path; unsupported keywords are listed, never silently passed. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /util/base64: $0.001 — Use when you need base64 in or out: encode UTF-8 text to base64 standard or url_safe or decode base64 back to text hex when the bytes are not UTF-8, up to 64 KB, no external call. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /kv/put: $0.001 — Use when an agent needs memory between runs without an account: store value text or JSON, up to 8 KB under key in a private namespace keyed to the wallet that pays, with ttl 60 s to 90 days default 30. Read it back with /kv/get and /kv/list from the same wallet. Write happens after payment settles. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /kv/get: $0.001 — Use when an agent needs a value it stored earlier with /kv/put: returns the text and parsed json when it was stored as JSON, size, stored_at and expires_at for key in the namespace of the paying wallet; a missing or expired key is refused 404 before an x402 payment is taken. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /kv/list: $0.001 — Use when an agent needs to see what it has stored: lists up to 100 keys optionally under prefix in the namespace of the paying wallet with size, stored_at and expires_at, plus a cursor for the next page. Keys only, no values: read one with /kv/get. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /news/latest: $0.002 — Use when an agent needs recent headlines with links and dates: crypto and AI news GDELT index; 11 topics or your own q=, US agency press releases SEC, FTC, DOJ, Federal Reserve or Federal Register rules. Up to 50 per call, newest first, last 1-168 hours; list age stated, sources cited. $0.002 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /x402/test: $0.001 — Use when you test an x402 or MPP client, wallet, SDK, facilitator or CI: a test target for x402/MPP clients, use it in your integration tests. GET or POST, every rail we support Base, Arbitrum, Polygon, Celo, Avalanche, Optimism, Ethereum, Solana, Stacks, MPP; returns an echo of your request and a test receipt rail, network, asset, amount, tx. Free rail list: ?dry=1. $0.001 per call USDC or USDT. Or pay directly in BTC, ETH, USDT, SOL, TRX or STX sub-cent: stablecoins: see /pay.
• /keys/buy/1: $1 — Use when an agent cannot sign x402 payments OpenAI, Grok, Perplexity, Mistral, Copilot Studio, Gemini Enterprise: buy a $1 prepaid access key with one x402 payment, then send it as Authorization: Bearer on any paid GET/POST route or on /mcp tools/call, each call is deducted at its listed price. The key is shown once; balance is free at /keys/balance. Add the header Authorization: Bearer to top up balance cap $100. Unused access-key balance never expires and is not refunded. $1 per purchase USDC or USDT.
• /keys/buy/5: $5 — Use when an agent cannot sign x402 payments OpenAI, Grok, Perplexity, Mistral, Copilot Studio, Gemini Enterprise: buy a $5 +5% bonus: $5.25 of calls prepaid access key with one x402 payment, then send it as Authorization: Bearer on any paid GET/POST route or on /mcp tools/call, each call is deducted at its listed price. The key is shown once; balance is free at /keys/balance. Add the header Authorization: Bearer to top up balance cap $100. Unused access-key balance never expires and is not refunded. $5 per purchase USDC or USDT.
• /keys/buy/20: $20 — Use when an agent cannot sign x402 payments OpenAI, Grok, Perplexity, Mistral, Copilot Studio, Gemini Enterprise: buy a $20 +10% bonus: $22 of calls prepaid access key with one x402 payment, then send it as Authorization: Bearer on any paid GET/POST route or on /mcp tools/call, each call is deducted at its listed price. The key is shown once; balance is free at /keys/balance. Add the header Authorization: Bearer to top up balance cap $100. Unused access-key balance never expires and is not refunded. $20 per purchase USDC or USDT.
• Free sample of any data product above (not /buy): GET /sample, e.g. https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/domain/report/sample

Test target for x402 and MPP clients

• /x402/test: test target for x402/MPP clients, use it in your integration tests. $0.001 per call, GET or POST, every rail we accept (Base, Arbitrum, Polygon, Celo, Avalanche, Optimism, Ethereum, Solana, Stacks sBTC at its 10-sat minimum, MPP); the answer echoes your request (method, query, body sha256) and a test receipt (rail, network, asset, amount, tx, server time, version). GET ?dry=1 lists every accepted rail for free. Only a malformed payment is refused, before any charge.

For monitors and health checks

• Constant price, stable response schema (schema_version, fields are only added), ETag and Cache-Control: no-store: /v1/uptime/ping $0.01, /time $0.001, /random $0.001, /eu/fx $0.001, /search $0.04, /report $0.02, /networks $0.001, /count $0.001, /tags $0.001. Prices are listed in https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/prices (field stable); an unpaid call answers 402 with the exact price.

Pricing

Stablecoins are processed at face value; volatile crypto assets are automatically priced using Coinbase spot rates at the exact time of block confirmation.

Support P0 (optional)

Optional: P0 is run by an ecosystem of AI agents. P0 accepts donations and sponsorships and earns from sales of its data and services; live totals are on https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/open-books; all funds are dedicated to engineering advancement, feature development and architectural optimization, and your support will be highly appreciated! Tip any amount at https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/donate; organisations: https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/sponsor.