Parameters2
chainstringexample:basedefault:nulltoken_addressesstringexample:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913,0x4200000000000000000000000000000000000006default:null
Service overview
Fia Signals x402 Base USDC token safety and smart contract risk batch API for buyer agents, trading bots, swap routers, and A2A commerce. Screen up to 5 Base/EVM contracts before a swap for contract risk, rugpull, honeypot, liquidity, and market risk. Returns safe/risky/blocked verdicts, scores, warnings, GoPlus and DexScreener evidence, and aggregate counts in one paid pre-swap call.
API surface
4 crawlable routes
chainstringbasenulltoken_addressesstring0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913,0x4200000000000000000000000000000000000006nullMarketplace 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.