{"id":"35519e7b-485","name":"opendata402.com/v1/fx/latest","description":"Official euro foreign exchange reference rates from the European Central Bank, published each working day around 16:00 CET for about 30 currencies. Use it to convert amounts between EUR and USD, GBP, JPY, CHF and others at the official daily rate. Optional base currency (cross rates are computed from the EUR rates) and a comma-separated list of symbols. Note: free of charge at ecb.europa.eu; you pay for access, not for the data.","endpoint_url":"https://opendata402.com/v1/fx/latest","endpoint_canonical":"https://opendata402.com/v1/fx/latest","category":"data.fx","kind":"api","price_amount":0.001,"price_currency":"USDC","chains":["base","polygon","eip155:42161"],"request_schema":null,"response_schema":null,"sample_query":null,"facilitator_url":null,"status":"verified","delisted_reason":null,"origin":"indexed","ephemeral":false,"created_at":1793354152,"updated_at":1793356002,"status_changed_at":1793356002,"embedding_synced_at":1793360311,"score":1,"p50_latency_ms":347,"p95_latency_ms":722,"p99_latency_ms":935,"probe_count":346,"probes_passed":346,"last_ok_at":1794019235,"consecutive_failures":0,"last_probed_at":1794019235,"probe_interval_s":7200,"distinct_payers":0,"x402_version":2,"transport":"header","obs_scheme":"exact","accepts_count":3,"accepts_index":0,"obs_network":"eip155:8453","obs_asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","obs_pay_to":"0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1","amount_atomic":"1000","amount_usd":0.001,"domain_name":"USD Coin","domain_version":"2","observed_at":1794019235,"obs_first_seen_at":1793354448,"price_changed_at":null,"pay_to_changed_at":null,"payto_unstable":false,"payto_distinct_recent":1,"onchain_provider_status":null,"onchain_payto_checked":"0x295aa6c5a3460a0f8755823c8ee7bbc7caf79fb1","onchain_checked_at":1794018995,"onchain_last_attempt_at":1794018995,"onchain_provider_error":0,"onchain_source":"index","header_bytes":3543,"verified_via":"GET","testnet":false,"payment_protocols":["x402"],"mpp_methods":null,"mpp_offers":null,"mpp_note":null,"onchain_payto_shared_listings":12,"onchain_count_capped":false,"onchain_shape":null,"onchain_daily":[{"day":"2026-10-11","tx":1,"payers":1,"usd":0.001},{"day":"2026-10-12","tx":1,"payers":1,"usd":0.001},{"day":"2026-10-14","tx":105,"payers":3,"usd":0.133},{"day":"2026-10-15","tx":1,"payers":1,"usd":0.001},{"day":"2026-10-17","tx":2,"payers":1,"usd":0.002},{"day":"2026-10-20","tx":2,"payers":2,"usd":0.002},{"day":"2026-10-21","tx":7,"payers":1,"usd":0.009},{"day":"2026-10-22","tx":5,"payers":1,"usd":0.007},{"day":"2026-10-23","tx":2,"payers":1,"usd":0.002},{"day":"2026-10-25","tx":28,"payers":4,"usd":0.028},{"day":"2026-10-26","tx":1,"payers":1,"usd":0.001},{"day":"2026-10-27","tx":10,"payers":2,"usd":0.01},{"day":"2026-10-28","tx":5,"payers":1,"usd":0.007},{"day":"2026-10-29","tx":3,"payers":3,"usd":0.003},{"day":"2026-10-30","tx":4,"payers":3,"usd":0.005},{"day":"2026-11-01","tx":14,"payers":3,"usd":0.015},{"day":"2026-11-02","tx":1,"payers":1,"usd":0.001},{"day":"2026-11-04","tx":47,"payers":3,"usd":0.06}],"latest_purchase_delivered":false,"latest_purchase_at":1793516848,"paid_verification_latest":{"at":1793516848,"delivered":false,"tx_hash":"0x1a9b578a6b8ae3938298fee5b94f89bfb44b2fbb4488969cae03e0b00a1816aa","amount_usdc":0.001,"failure_reason":"stale_data","note":"Most recent settled purchase by the nohumans scout; it did NOT deliver. Read this beside paid_verification, which reports the latest SUCCESS and may be older.","at_iso":"2026-11-01T07:07:28Z","age_days":5},"paid_verification":{"verified":false,"payment_settled_on_failure":{"attempted_at":1793516848,"tx_hash":"0x1a9b578a6b8ae3938298fee5b94f89bfb44b2fbb4488969cae03e0b00a1816aa","amount_usdc":0.001,"http_status":200,"failure_reason":"stale_data","note":"Endpoint settled a real USDC payment but the response failed validation — it charges before validating. On-chain settlement proof attached."}},"has_sample":false,"method_note":null,"paid_verified":false,"paid_verified_at":null,"paid_depth":{"rung":"none","deliveries":0,"span_weeks":0,"first_ok_at":null,"last_ok_at":null,"last_attempt_ok":0,"through_change":false,"first_ok_at_iso":null,"last_ok_at_iso":null},"payto_sentinel":false,"payto_note":null,"evidence_tier":"probe_verified","evidence_note":"Warning: our latest settled purchase of this endpoint did NOT deliver (real USDC paid, nothing usable returned). Until a later purchase delivers, our pay rules say not to pay it. Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.","verdict_age_seconds":1375,"probe_tier":"stable","next_check_by":1794026435,"next_check_basis":"stable tier, re-probed every 2 hours: verified with no failure in the last 24 h and no change of terms or status in 7 days, or failing 11 to 50 times in a row; any failure moves it to the watch tier on that probe; a record past next_check_by is stale by our own rule","last_probed_at_iso":"2026-11-07T02:40:35Z","next_check_by_iso":"2026-11-07T04:40:35Z","status_changed_at_iso":"2026-10-30T10:26:42Z","paid_verified_at_iso":null,"probes_failed":0,"onchain_scope":"wallet-level, NOT this endpoint's: the payTo address is shared by 12 active listings, so these on-chain counts cover all of them; never attribute them to one endpoint or add them across listings","onchain_wallet":{"scope":"wallet-level, NOT this endpoint's: the payTo address is shared by 12 active listings, so these on-chain counts cover all of them; never attribute them to one endpoint or add them across listings","shared_by_listings":12,"pay_to":"0x295aa6c5a3460a0f8755823c8ee7bbc7caf79fb1","tx_count_30d":239,"unique_payers_30d":24,"volume_usd_30d":0.288},"onchain_tx_count_30d":239,"onchain_unique_payers_30d":24,"onchain_volume_usd_30d":0.288,"created_at_iso":"2026-10-30T09:55:52Z","updated_at_iso":"2026-10-30T10:26:42Z","embedding_synced_at_iso":"2026-10-30T11:38:31Z","last_ok_at_iso":"2026-11-07T02:40:35Z","observed_at_iso":"2026-11-07T02:40:35Z","obs_first_seen_at_iso":"2026-10-30T10:00:48Z","onchain_checked_at_iso":"2026-11-07T02:36:35Z","onchain_last_attempt_at_iso":"2026-11-07T02:36:35Z","latest_purchase_at_iso":"2026-11-01T07:07:28Z","paid_verified_age_days":null,"latest_purchase_age_days":5,"report_outcome":{"how":"POST https://api.nohumans.directory/v1/reports","when":"after you paid this endpoint on Base, whether or not it delivered","body":{"listing_id":"35519e7b-485","ok":"JSON boolean: did it deliver what it promised","tx_hash":"your payment's transaction hash on Base","payer_signature":"EIP-191 personal_sign of message_to_sign by the wallet that paid"},"message_to_sign":"nohumans.directory report v1\nlisting_id: 35519e7b-485\ntx_hash: <tx_hash, lowercase>\nok: <true|false>","distinct_payers_reported":0,"weight":"counts toward ranking once 3+ distinct payers have reported this listing","help":"https://api.nohumans.directory/v1/reports"},"observed":{"checked_at":1794019235,"x402_version":2,"challenge_transport":"header","scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0x295AA6c5a3460A0f8755823C8eE7bBC7CAf79fb1","payment_options":3,"accepts_index":0,"extra":{"name":"USD Coin","version":"2"},"amount_atomic":"1000","amount_usd":0.001,"eip712_domain":{"name":"USD Coin","version":"2"},"price_stable_since":1793354448,"price_matches_listing":true,"payto_stable_since":1793354448,"checked_at_iso":"2026-11-07T02:40:35Z","price_stable_since_iso":"2026-10-30T10:00:48Z","payto_stable_since_iso":"2026-10-30T10:00:48Z"}}