x402 Toolbox
Outils MCP gratuits et en lecture seule exposant 14 des points de terminaison de données économiques de x402 Toolbox : aperçu du marché, données sur les frais de gaz, prix de l'ETH, vérification de transactions, enrichissement d'adresses, journal d'attestation et plus encore. Le catalogue complet des 28 points de terminaison x402 payants par appel (USDC sur Base) est disponible sur lab.paidapis.net.
Serveur MCP hébergé
npx add-mcp 'https://lab.paidapis.net/mcp'S’installe dans Claude Code, Codex, Cursor et plus
Documentation
x402 Toolbox
A toolbox of x402 payment-protocol mechanics — 28 small real endpoints, each a distinct pattern. USDC on Base mainnet, no accounts, no API keys.
Endpoints
| Path | Price | Description |
|---|---|---|
GET /api/market-snapshot | $0.01 | Aggregated market snapshot |
GET /api/normalized-gas | $0.01 | Normalized Ethereum + Base gas data |
GET /api/gas-comparator | $0.01 | Cross-chain gas comparator |
GET /api/large-usdc-transfers | $0.02 | Large USDC transfer filter |
GET /api/enrich-address | $0.01 | On-chain address enrichment |
GET /api/gas-metrics | $0.01 | Derived gas price metrics |
POST /api/alerts/subscribe | $0.02 | Subscribe a gas-price alert webhook |
POST /api/wallet-watch/subscribe | $0.02 | Subscribe a wallet-activity webhook |
POST /api/ownership/challenge | free | Issue a wallet-ownership challenge (free) |
POST /api/ownership/verify | $0.02 | Verify a wallet-ownership signature |
POST /api/document-anchor/create | $0.02 | Blockchain-anchored document proof-of-existence |
POST /api/contract-risk/summarize | $0.01–$0.0488 | Plain-English smart-contract risk summarizer |
GET /api/reliable-eth-price | $0.01 | Reliable ETH/USD price |
GET /api/wiki-summary | $0.01 | Wikipedia article summary as JSON |
GET /api/verify-tx | $0.02 | Signed on-chain transaction confirmation oracle |
GET /api/verify-tx-multi-source | $0.05 | Multi-source on-chain confirmation oracle |
GET /api/attestation-log | $0.02 | Signed oracle attestation history |
POST /api/escrow/create | $0.02 | Create a soft-escrow release condition |
POST /api/invoice/create | $0.001 | Create a signed, payable invoice |
POST /api/subscriptions/register | $0.01 | Register a subscription for renewal reminders |
GET /api/resize-image | $0.005–$0.0800 | Metered image resize |
GET /api/batch-resize | $0.005–$0.4000 | Batch metered image resize |
GET /api/tax-lot-calculator | $0.05–$1.00 | FIFO tax-lot calculator |
GET /api/freshness-priced-data | $0.002–$0.02 | Freshness-tiered gas/price data |
POST /api/leaderboard/list | $0.005 | Pay for leaderboard visibility |
POST /api/auction/bid | free | Place a free, balance-verified auction bid |
POST /api/prediction/markets | free | Create a free prediction market |
POST /api/bundle/subscribe | $0.03 | Subscribe to the all-access bundle |
POST /api/insured-feed/subscribe | $0.001–$5 | Subscribe to the insured price feed |
GET /api/reputation | $0.01 | On-chain + ledger reputation score |
GET /api/gas-history-export | $0.005–$2.8800 | Historical gas price export |
How to call it
Standard x402 flow — request the endpoint, get a 402 with payment details, sign and resend with an x402-aware client. No pre-registration.
curl https://lab.paidapis.net/api/market-snapshot
# -> 402 Payment Required, with payment details in the response
Machine-readable spec
/openapi.json — full OpenAPI spec with pricing (x-payment-info) per route.
/api/directory — live reachability + real settled-payment history per endpoint.