x402-agent-tools

103 production-ready AI agent tools with x402 micropayments. Pay-per-call USDC on Base. Zero API keys. Zero subscriptions. Just a wallet.

The largest collection of x402-compatible tools for autonomous AI agents. Built for LangChain, Vercel AI SDK, CrewAI, AutoGPT, and any agent framework that supports tool calling.

3-17x cheaper than StableEnrich, httpay, BlockRun, and Nansen. Same data. Fraction of the cost. See benchmark.

Why x402-agent-tools?

Feature	x402-agent-tools	StableEnrich	httpay	BlockRun
Tools available	103	~12	~8	~15
Avg price/call	$0.003	$0.01-0.05	$0.01-0.03	$0.01-0.05
API keys needed	None	Yes	Yes	Yes
Subscription	None	Monthly	Monthly	Monthly
Hyperliquid data	7 APIs	0	0	0
Prediction markets	2 APIs	0	0	0
Payment	USDC on Base	USDC	USDC	USDC
Framework support	LangChain, AI SDK	Custom	Custom	Custom

Install

npm install x402-agent-tools @x402/fetch @x402/evm viem

Quick Start — 3 Lines to Your First Call

import { createClient } from "x402-agent-tools";

const client = createClient("0xYourPrivateKey");

// Crypto: whale positions on Hyperliquid
const whales = await client.call("hyperliquid_whales", { ticker: "BTC" });

// B2B: enrich a company from domain
const company = await client.call("company_enrichment", { domain: "stripe.com" });

// Security: trust score any domain
const trust = await client.call("trust_score", { target: "example.com" });

// DeFi: best bridge route across 60+ chains
const route = await client.call("bridge_routes", {
  fromChain: "1", toChain: "8453", token: "USDC", amount: "1000000"
});

Vercel AI SDK Integration

Use this when building AI agents with Vercel AI SDK. Returns all 103 tools as Vercel-compatible tool objects with automatic x402 payment handling.

import { createClient } from "x402-agent-tools";
import { getX402Tools } from "x402-agent-tools/ai-sdk";
import { generateText } from "ai";
import { anthropic } from "@ai-sdk/anthropic";

const client = createClient("0xYourPrivateKey");

const { text } = await generateText({
  model: anthropic("claude-sonnet-4-20250514"),
  tools: getX402Tools(client),
  prompt: "What are the current funding rates on Hyperliquid for BTC and ETH? Also check if there are any liquidation levels near current prices on Aave.",
});

Filter by category or specific tools

// Only Hyperliquid + DeFi tools (ideal for trading agents)
const tradingTools = getX402Tools(client, {
  categories: ["hyperliquid", "defi", "crypto"]
});

// Only specific tools you need
const researchTools = getX402Tools(client, {
  tools: ["web_scraper", "web_search", "fact_checker", "research_report"]
});

LangChain.js Integration

Use this when building agents with LangChain.js. Returns DynamicStructuredTool instances compatible with all LangChain agent types.

import { createClient } from "x402-agent-tools";
import { getX402LangChainTools } from "x402-agent-tools/langchain";
import { ChatAnthropic } from "@langchain/anthropic";
import { AgentExecutor, createToolCallingAgent } from "langchain/agents";

const client = createClient("0xYourPrivateKey");
const tools = getX402LangChainTools(client);

const llm = new ChatAnthropic({ model: "claude-sonnet-4-20250514" });
const agent = createToolCallingAgent({ llm, tools, prompt: yourPrompt });
const executor = new AgentExecutor({ agent, tools });

await executor.invoke({
  input: "Find the top whale positions on Hyperliquid BTC, check token safety for the top traded token, then summarize the findings."
});

Direct HTTP (No SDK Needed)

Every tool is also available as a standalone x402 HTTP endpoint. Use @x402/fetch directly:

import { wrapFetchWithPayment } from "@x402/fetch";

const response = await paidFetch("https://trust-score-production-ff18.up.railway.app/api", {
  method: "POST",
  body: JSON.stringify({ target: "example.com" }),
});

All 103 Tools

Hyperliquid Suite — 7 tools

#1 Hyperliquid data provider on x402. Complete DEX coverage.

Tool	Price	What it returns
`hyperliquid_data`	$0.001	Perp markets: prices, open interest, 24h volume, orderbook depth for 229 markets
`hyperliquid_whales`	$0.003	Whale positions: sizes, PnL, entry prices, leverage
`hl_vaults`	$0.003	Vault summaries: APR, TVL, PnL, depositor count
`hl_funding`	$0.002	Funding rates: current, 1h, 8h, 24h with arb scanner
`hl_portfolio`	$0.003	Account analysis: positions, PnL, fills, open orders, funding
`hl_spot`	$0.002	454 spot tokens: prices, volume, wallet balances

Prediction Markets — 2 tools

Tool	Price	What it returns
`prediction_markets`	$0.005	Active events from Polymarket + Kalshi: probabilities, volume, trending
`event_resolver`	$0.005	Settlement oracle: resolve outcomes, verify claims, check thresholds

Crypto & DeFi — 16 tools

Tool	Price	What it returns
`wallet_portfolio`	$0.003	Multi-chain wallet balances and token holdings
`gas_oracle`	$0.001	Gas prices: fast/standard/slow for any EVM chain
`gas_estimator`	$0.002	Multi-chain gas comparison in one call
`dex_quotes`	$0.005	Best swap quotes across DEXs with price impact
`token_price`	$0.001	Real-time crypto prices via CoinGecko
`defi_yields`	$0.002	Best DeFi yields: APY, TVL, risk scores
`whale_alert`	$0.003	Large crypto transactions and whale movements
`crypto_news`	$0.002	Crypto news with sentiment scores
`funding_arb`	$0.005	Funding rate arbitrage across exchanges
`funding_rates`	$0.002	Live perp funding: Binance, Bybit, OKX, open interest
`ens_resolver`	$0.002	ENS name resolution and reverse lookup
`token_holders`	$0.005	Token holder distribution: whale count, concentration
`token_ohlcv`	$0.002	Historical OHLCV candles
`airdrop_checker`	$0.005	Check wallet eligibility for active airdrops
`bridge_routes`	$0.003	Best cross-chain bridge routes via LI.FI (60+ chains)
`currency_converter`	$0.001	Fiat (ECB) and crypto (CoinGecko) conversion

DeFi Advanced — 3 tools

Tool	Price	What it returns
`base_defi`	$0.003	Base chain yields: Aerodrome LP, Moonwell lending
`liquidation_oracle`	$0.003	Liquidation levels: Aave, Compound, Morpho positions
`orderbook_depth`	$0.005	Uniswap V3 liquidity depth and slippage estimation

NFT — 3 tools

Tool	Price	What it returns
`nft_collection`	$0.005	Collection floor price, volume, holders, rarity
`nft_rarity`	$0.003	Token rarity rank, score, trait floor prices
`nft_metadata`	$0.003	NFT metadata: name, image, attributes, collection info

Solana — 4 tools

Tool	Price	What it returns
`solana_launches`	$0.003	New token launches: pump.fun, Raydium
`jupiter_quotes`	$0.002	Jupiter aggregator swap quotes
`solana_fees`	$0.001	Priority fee estimates at 6 levels
`solana_pools`	$0.003	DEX pool liquidity: Raydium, Orca, Meteora

Trust & Security — 8 tools

Tool	Price	What it returns
`trust_score`	$0.01	Unified trust scoring 0-100: domains, wallets, APIs
`token_safety`	$0.003	Rug pull detection: honeypot, liquidity, ownership
`domain_intelligence`	$0.005	Full domain intel: DNS, WHOIS, SSL, registrar
`ssl_checker`	$0.002	SSL/TLS cert: validity, expiry, chain, grade
`http_headers`	$0.001	HTTP security headers: HSTS, CSP, server detection
`port_scanner`	$0.003	TCP port scan: open/closed, response time
`password_strength`	$0.001	Password score 0-100, entropy, crack time
`jwt_decoder`	$0.001	JWT decode: header, payload, claims, expiry

B2B Enrichment — 6 tools

Tool	Price	What it returns
`email_verification`	$0.002	Email validation: syntax, MX, disposable, score 0-100
`company_enrichment`	$0.01	Company data: industry, size, tech, social, founded
`person_enrichment`	$0.01	Person data: name, role, company, social, location
`email_finder`	$0.005	Find email from name + domain
`tech_enrichment`	$0.005	50+ technologies detected on any website
`social_profile`	$0.008	Social profiles: Twitter, GitHub, LinkedIn, YouTube

Email — 2 tools

Tool	Price	What it returns
`email_deliverability`	$0.005	Deliverability audit: SPF, DKIM, DMARC, score 0-100
`email_send`	$0.003	Send emails via Resend: text/HTML, delivery status

Web & SEO — 6 tools

Tool	Price	What it returns
`web_scraper`	$0.005	URL to clean markdown, headless rendering
`seo_analyzer`	$0.02	Full SEO audit: meta, headings, schema, score 0-100
`screenshot_pdf`	$0.008	Screenshots (PNG/JPEG/WebP) and PDF capture
`web_search`	$0.003	Web search: title, URL, snippet, 10 results
`keyword_research`	$0.01	SEO keywords: Google Suggest, intent, long-tail
`webhook_tester`	$0.002	Test webhooks: custom methods, headers, latency

Social — 1 tool

Tool	Price	What it returns
`twitter_scraper`	$0.005	Twitter/X profiles, search, timelines. No API key

Network — 3 tools

Tool	Price	What it returns
`dns_lookup`	$0.002	DNS records: A, MX, TXT, CNAME via Cloudflare DoH
`ip_geolocation`	$0.003	IP geolocation: country, city, ISP, VPN detection
`ip_geolocation_batch`	$0.01	Batch geolocate up to 20 IPs

NLP — 5 tools

Tool	Price	What it returns
`ai_summarizer`	$0.01	Summarize text/URLs via Claude Haiku
`sentiment_analyzer`	$0.005	Sentiment, emotions, confidence scores
`text_translator`	$0.005	Translate 50+ languages with auto-detection
`text_classifier`	$0.005	Topic classification, readability, content type
`language_detector`	$0.002	Language detection: 30+ languages, script, confidence

Finance — 1 tool

Tool	Price	What it returns
`stock_price`	$0.002	Real-time stock quotes: price, change, volume, mcap

Media — 3 tools

Tool	Price	What it returns
`image_resize`	$0.003	Resize images: dimensions, format conversion
`ocr_extract`	$0.005	OCR text extraction from images
`text_to_speech`	$0.005	Text to speech: 20+ languages, MP3 output

Text Processing — 8 tools

Tool	Price	What it returns
`diff_checker`	$0.002	Line-by-line text diff with similarity score
`word_counter`	$0.001	Words, chars, sentences, paragraphs, reading time
`lorem_ipsum`	$0.001	Placeholder text: paragraphs, sentences, words
`slug_generator`	$0.001	URL-friendly slugs with transliteration
`regex_tester`	$0.001	Regex testing: matches, groups, explanations
`html_to_markdown`	$0.001	HTML to clean Markdown conversion
`markdown_to_html`	$0.001	Markdown to HTML conversion
`markdown_renderer`	$0.002	Markdown to styled HTML (light/dark/GitHub themes)

Research — 2 tools

Tool	Price	What it returns
`fact_checker`	$0.005	Verify claims with evidence and sources
`research_report`	$0.02	Multi-source research reports in markdown

Compliance — 2 tools

Tool	Price	What it returns
`gdpr_scanner`	$0.02	GDPR compliance: consent, privacy, trackers
`pii_detector`	$0.005	PII detection: emails, SSNs, credit cards, redaction

Validation — 5 tools

Tool	Price	What it returns
`phone_validation`	$0.003	Phone validation: carrier, line type, E.164
`phone_validation_batch`	$0.025	Batch validate up to 50 phones
`sms_validator`	$0.002	SMS-capable validation with carrier type
`address_validator`	$0.003	Postal address parsing and normalization
`json_validator`	$0.001	JSON syntax + schema validation

Developer — 1 tool

Tool	Price	What it returns
`code_sandbox`	$0.01	Execute Python/JS/SQL in sandbox with output

Generators — 5 tools

Tool	Price	What it returns
`qr_code`	$0.001	QR codes as base64 PNG
`barcode_generator`	$0.001	Barcodes: EAN-13, UPC-A, Code128, Code39
`hash_generator`	$0.001	MD5, SHA1, SHA256, SHA512, bcrypt hashes
`uuid_generator`	$0.001	UUID v4, v7, ULID, nanoid (batch 100)
`color_palette`	$0.001	Harmonious color palettes from hex

Documents — 1 tool

Tool	Price	What it returns
`pdf_generator`	$0.008	PDF from HTML/Markdown with custom layout

Utility — 8 tools

Tool	Price	What it returns
`base64_codec`	$0.001	Base64 encode/decode (standard + URL-safe)
`csv_to_json`	$0.001	CSV to JSON with auto-detect delimiter
`cron_parser`	$0.001	Parse cron expressions with next run times
`crontab_generator`	$0.001	Natural language to cron expression
`timezone_converter`	$0.001	Datetime conversion between IANA timezones
`unit_converter`	$0.001	Length, weight, temp, volume, speed conversion
`url_shortener`	$0.001	URL shortening with custom aliases
`user_agent_parser`	$0.001	Parse user agent: browser, OS, device, bot

Data — 2 tools

Tool	Price	What it returns
`weather`	$0.001	Current weather + 7-day forecast
`vector_search`	$0.005	TF-IDF cosine similarity document search

How x402 Payment Works

Your Agent                    x402-agent-tools                  API Server
    |                              |                                |
    |-- call("trust_score", {})  ->|                                |
    |                              |-- POST /api ------------------>|
    |                              |<-- 402 Payment Required -------|
    |                              |                                |
    |                              |   [auto-signs USDC payment]    |
    |                              |                                |
    |                              |-- POST /api + payment header ->|
    |                              |<-- 200 OK + JSON data ---------|
    |<-- structured result --------|                                |

Your agent calls a tool through the SDK
The SDK sends an HTTP request to our API
Server responds 402 Payment Required with price in USDC
@x402/fetch automatically signs a USDC micro-payment on Base L2
Request retries with the signed payment header
You get structured JSON data back

No API keys. No rate limits. No subscriptions. Pay per call.

Use Cases

Trading Agent — Use hyperliquid_* + funding_rates + liquidation_oracle + prediction_markets to build autonomous trading strategies. Monitor whale positions, funding arbitrage, and prediction market odds in real-time.

Research Agent — Use web_search + web_scraper + fact_checker + research_report + ai_summarizer to build deep research pipelines. Scrape, verify, and synthesize information from multiple sources.

Security Agent — Use trust_score + token_safety + ssl_checker + port_scanner + gdpr_scanner to audit websites, tokens, and infrastructure. Generate compliance reports automatically.

Sales Agent — Use email_finder + company_enrichment + person_enrichment + email_verification + email_send to build outbound sales pipelines. Find, enrich, verify, and contact leads at scale.

DeFi Agent — Use defi_yields + base_defi + bridge_routes + dex_quotes + wallet_portfolio to optimize yield farming, find bridge routes, and manage multi-chain portfolios.

Requirements

Node.js >= 18
A wallet with USDC on Base L2 (even $1 gets you 100-1000+ calls)
Private key for signing payments (use a dedicated agent wallet, not your main wallet)

License

MIT

klymax402