{"id":"x402.sendcheck","name":"SendCheck","summary":"Pre-send address verification for stablecoin withdrawals: one paid POST /check ($0.01) parses address + token contract, probes live RPCs and exchanges, and returns a warn-level verdict before you send USDC. POST /deep ($0.05) adds extended checks.","kind":"http_api","url":"https://sendcheck.surge.sh","categories":["security_verification"],"tags":["Verification"],"sources":[{"source":"x402_list","ref":"https://x402-list.com/services/sendcheck"}],"pricing":{"model":"per_call","min_usd":0.01,"max_usd":0.05,"rails":["x402"],"networks":["eip155:8453"]},"status":"unclaimed","first_party":false,"discovery":{"llms_txt":"https://api.pennyforge.org/llms.txt","x402_manifest":"https://api.pennyforge.org/.well-known/x402","openapi":"https://api.pennyforge.org/openapi.json"},"trust":{"verified_buyers_30d":9,"settlements_30d":27,"volume_usd_30d":0.31,"top_buyer_share_30d":0.258,"last_settlement_at":"2026-09-30T06:00:53Z","shared_payout":false,"wash_flags":[],"method":"hub-trust-v0.1","source":"x402-list.com on-chain measured settlements (CC BY 4.0)","score":52,"evidence":"verified_non_wash_payments","watch":[]},"signals":{"x402_list_status":"online","x402_list_verified":false,"uptime_24h":100,"uptime_30d":99.6,"p95_ms":847,"compliance_grade":"A","risk_level":"clean","endpoint_count":2,"openapi_paid_ops":3},"origin":"https://api.pennyforge.org","attribution":["Data: x402-list.com (CC BY 4.0)"],"badges":["unclaimed","paid_usage_verified"],"kit_manifest":"/api/v1/listings/x402.sendcheck/kit.json","go":"/go/x402.sendcheck?src=api","claim":{"how":"Sellers: sign in at /sellers and claim this listing (verify via /.well-known file, DNS TXT, or an email at the listing's domain).","opt_out":"Sellers can ask for removal or corrections after claiming."}}