{"id":"x402.witness","name":"witness","summary":"Independent fact + signed receipt via x402. Free POST /quote then pay POST /witness twice for the same method ($0.02 ceiling). Base and Solana USDC.","kind":"http_api","url":"https://witness.outbid.sh","categories":["crypto_onchain_data"],"tags":["Data"],"sources":[{"source":"x402_list","ref":"https://x402-list.com/services/witness"}],"pricing":{"model":"per_call","min_usd":0.01,"max_usd":0.01,"rails":["x402"],"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"]},"status":"unclaimed","first_party":false,"discovery":{"x402_manifest":"https://witness.outbid.sh/.well-known/x402","openapi":"https://witness.outbid.sh/openapi.json"},"trust":{"verified_buyers_30d":5,"settlements_30d":72,"volume_usd_30d":0.38,"top_buyer_share_30d":0.579,"last_settlement_at":"2026-10-12T02:28:58Z","shared_payout":false,"trend_7d_vs_30d":0.7443609022556391,"wash_flags":[],"method":"hub-trust-v0.1","source":"x402-list.com on-chain measured settlements (CC BY 4.0)","score":41,"evidence":"verified_non_wash_payments","watch":[]},"signals":{"x402_list_status":"online","x402_list_verified":false,"uptime_24h":100,"uptime_30d":99.6,"p95_ms":1013,"compliance_grade":"A","risk_level":"clean","endpoint_count":1,"openapi_paid_ops":5},"origin":"https://witness.outbid.sh","attribution":["Data: x402-list.com (CC BY 4.0)"],"badges":["unclaimed","paid_usage_verified"],"tiers":{"tier":null,"tier_label":null,"highest_earned":null,"earned":[],"paid":[],"not_yet":[{"id":"verified","reason":"listing not claimed with domain proof"},{"id":"trusted","reason":"needs Live-Tested"}],"badge_svg":"https://agentropolis.io/badge/x402.witness.svg","page":"https://agentropolis.io/listing/x402.witness","embed_markdown":"[![Agentropolis](https://agentropolis.io/badge/x402.witness.svg)](https://agentropolis.io/listing/x402.witness)","tiers_doc":"https://agentropolis.io/badges"},"seller_wallet":null,"page":"/listing/x402.witness","kit_manifest":"/api/v1/listings/x402.witness/kit.json","go":"/go/x402.witness?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). After Verified, link an EVM wallet with a signed message.","opt_out":"Sellers can ask for removal or corrections after claiming."}}