{"slug":"x402-freeq-one-tools-verify-stablecoin-a5b924","title":"Stablecoin Issuer / GENIUS / Reserve Verifier","host":"x402.freeq.one","method":"POST","resource":"https://x402.freeq.one/tools/verify_stablecoin","category":"market","description":"Stablecoin Issuer / GENIUS / Reserve Verifier: Verify a stablecoin: issuer identity, GENIUS Act qualification status, and latest reserve attestation. Resolves the token from chain+address, a known symbol (USDC, USDT, PYUSD, USDS, FDUSD, USDe), or a tx hash. Free preview: preview=true validates the i","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":924,"reported_calls_30d":2,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"address":"address","chain":"chain","preview":true,"symbol":"symbol","tx_hash":"tx_hash"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"description":"JSON request body. See GET /tools for the parameter catalog.","properties":{"address":{"description":"Token contract address (0x + 40 hex). e.g. 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 (USDC on Base)","type":"string"},"chain":{"description":"Chain for address lookup: base (default), ethereum, arbitrum, optimism, polygon","type":"string"},"preview":{"description":"true = free registry-only check: input validation + issuer identity, no on-chain calls, no attestation payload. No payment required.","type":"boolean"},"symbol":{"description":"Known symbol: USDC, USDT, PYUSD, USDS, FDUSD, USDe (alternative to address)","type":"string"},"tx_hash":{"description":"Transaction hash — resolves the token contract from the tx's ERC-20 Transfer log","type":"string"}},"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"description":{"type":"string"},"headers":{"additionalProperties":{"type":"string"},"type":"object"},"mcpServerUrl":{"type":"string"},"method":{"enum":["POST"],"type":"string"},"queryParams":{"additionalProperties":{"type":"string"},"type":"object"},"toolName":{"type":"string"},"transport":{"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"result":{"description":"Tool output (JSON)"}},"type":"object"},"type":{"const":"json","type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":924,"error":null}],"description_full":"Stablecoin Issuer / GENIUS / Reserve Verifier: Verify a stablecoin: issuer identity, GENIUS Act qualification status, and latest reserve attestation. Resolves the token from chain+address, a known symbol (USDC, USDT, PYUSD, USDS, FDUSD, USDe), or a tx hash. Free preview: preview=true validates the input and returns the issuer only — no payment required. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_stablecoin.","last_updated":"2026-09-22T07:55:47.386Z","schemes":["exact"]}