Parameters3
categorystringexample:DeFidefault:nulllimitstringexample:5default:nullqstringexample:defi token securitydefault:null
Service overview
Find x402 pay-per-call APIs — 2,400 verified entries across 24 categories (DeFi, Weather, AI/LLM, Security, Finance/FX, Content, Domain, Visual, Intelligence, etc). Quality-scored, relevance-ranked with brokerable flag. No setup needed. Accepts USDC payments on Base and Solana
API surface
2 crawlable routes
categorystringDeFinulllimitstring5nullqstringdefi token securitynullkeystringgw_abc123...nullMarketplace context
Service
OATP · tx_explainer — Fetch a Solana transaction by signature and return a human-readable explanation: programs invoked, token balance changes, fee (SOL + USD), and a one-line summary.
Service
Exa /contents endpoint
Service
Decode and explain any EVM blockchain transaction across 11 chains (Base, Ethereum, Arbitrum, Optimism, Avalanche, Polygon, Mantle, Monad, Plasma, BSC, Hyperliquid). Get a human-readable summary of swaps, transfers, approvals, DeFi interactions, and more.