{"ok":true,"url":"https://api.nansen.ai/api/v1/perp-leaderboard","category":"inference","score":88.8,"traction":77.8,"confidence":1,"last_status":402,"last_probe_at":"2026-07-29T01:22:54.539Z","evidence":{"reliability":{"probes":16,"ok":12,"ratio":0.75,"window":"latest_60"},"protocol":{"valid_quote_probes":12,"paid_responses":12,"of":12,"ratio":1},"speed":{"p50_ms":160,"p95_ms":175,"score":1},"proven":{"settlements_to_advertised_pay_to":48,"distinct_senders_to_pay_to":5,"verified_at":null,"score":0.6484593753197031,"caveat":"payment activity to the currently observed/advertised payTo; not necessarily an API purchase","distinct_senders_per_week":5,"weeks_listed":1},"stability":{"price_observations":12,"changes":0,"score":1},"freshness":{"last_probe_at":"2026-07-29T01:22:54.539Z","age_days":0.4,"factor":1},"current":{"status":402,"quote_valid":true,"factor":1}},"routability":{"routable":true,"reasons":[],"age_hours":9.66,"observed_price_usd":0.05,"capability_key":"opaque:49792"},"capability_key":"opaque:49792","capability_profile":{"version":3,"endpoint_id":49792,"url":"https://api.nansen.ai/api/v1/perp-leaderboard","category":"inference","primary_capability":"dynamic.inference.inference_perp_leaderboard_nansen","confidence":0.35,"capabilities":[{"id":"dynamic.inference.inference_perp_leaderboard_nansen","label":"inference perp leaderboard nansen","category":"inference","confidence":0.35,"evidence":[{"source":"metadata_terms","detail":"inference, perp, leaderboard, nansen"}]}],"keywords":["inference","perp","leaderboard","nansen"],"entities":[],"operations":[],"networks":["base"],"input_concepts":[],"output_concepts":[],"input_schema_known":false,"output_schema_known":false,"generated_from":["title","description","url","declared_category","category","input_schema","output_schema","verified_adapters"],"fingerprint":"463f556b0e0286a83de23971a9d44a7222fb25843ceaf0eb6a9398236aa3ed34","search_terms":["inference","dynamic.inference.inference_perp_leaderboard_nansen","inference perp leaderboard nansen","perp","leaderboard","nansen","base"]},"adapters":[],"dataset_revision":320946,"declared":{"price_usd":0.05,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","pay_to":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","input_schema":null,"output_schema":null},"observed":{"price_usd":0.05,"price_at":"2026-07-29T01:22:54.539Z","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","network":"eip155:8453","pay_to":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","quote_valid":true,"method":"POST"},"verification":{"safe_for_end_to_end":false,"owner_opt_in_non_read":false},"provenance":[{"source":"bazaar","first_seen":"2026-07-25T04:40:27.403Z","last_seen":"2026-07-29T10:56:31.396Z","claim_json":"{\"title\":null,\"description\":null,\"declared_category\":null,\"declared_price_usd\":0.05,\"currency\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\"network\":\"eip155:8453\",\"pay_to\":\"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f\",\"method\":null,\"input_schema\":null,\"output_schema\":null,\"verification_safe\":false}","claim":{"title":null,"description":null,"declared_category":null,"declared_price_usd":0.05,"currency":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","network":"eip155:8453","pay_to":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","method":null,"input_schema":null,"output_schema":null,"verification_safe":false}}],"proven":{"onchain_settlements":48,"onchain_payers":5,"caveat":"payment activity to the currently observed/advertised payTo; not necessarily an API purchase","verified_at":null,"verified_tx":null},"history":[{"iso":"2026-07-29T01:22:54.539Z","ok":1,"status":402,"latency_ms":160,"quote_valid":1,"price_usd":0.05,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","network":"eip155:8453","pay_to":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","raw_amount":"50000","method_used":"POST","probe_class":"valid_x402_quote","conclusive":1,"error":null},{"iso":"2026-07-28T01:16:14.397Z","ok":1,"status":402,"latency_ms":162,"quote_valid":1,"price_usd":0.05,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","network":"eip155:8453","pay_to":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","raw_amount":"50000","method_used":"POST","probe_class":"valid_x402_quote","conclusive":1,"error":null},{"iso":"2026-07-26T23:46:16.943Z","ok":1,"status":402,"latency_ms":144,"quote_valid":1,"price_usd":0.05,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","network":"eip155:8453","pay_to":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","raw_amount":"50000","method_used":"POST","probe_class":"valid_x402_quote","conclusive":1,"error":null},{"iso":"2026-07-25T23:11:32.750Z","ok":1,"status":402,"latency_ms":141,"quote_valid":1,"price_usd":0.05,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","network":"eip155:8453","pay_to":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","raw_amount":"50000","method_used":"POST","probe_class":"valid_x402_quote","conclusive":1,"error":null},{"iso":"2026-07-24T19:56:09.991Z","ok":1,"status":402,"latency_ms":142,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null},{"iso":"2026-07-24T17:55:55.044Z","ok":1,"status":402,"latency_ms":165,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null},{"iso":"2026-07-24T15:45:46.693Z","ok":0,"status":null,"latency_ms":143,"quote_valid":0,"price_usd":null,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":"negotiable is not defined"},{"iso":"2026-07-24T12:51:35.788Z","ok":0,"status":null,"latency_ms":179,"quote_valid":0,"price_usd":null,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":"negotiable is not defined"},{"iso":"2026-07-24T10:15:26.308Z","ok":0,"status":null,"latency_ms":145,"quote_valid":0,"price_usd":null,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":"negotiable is not defined"},{"iso":"2026-07-24T08:11:47.607Z","ok":0,"status":null,"latency_ms":139,"quote_valid":0,"price_usd":null,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":"negotiable is not defined"},{"iso":"2026-07-24T06:07:54.892Z","ok":1,"status":402,"latency_ms":173,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null},{"iso":"2026-07-24T03:58:52.216Z","ok":1,"status":402,"latency_ms":175,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null},{"iso":"2026-07-24T01:58:32.355Z","ok":1,"status":402,"latency_ms":194,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null},{"iso":"2026-07-23T23:55:49.781Z","ok":1,"status":402,"latency_ms":165,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null},{"iso":"2026-07-23T21:53:56.783Z","ok":1,"status":402,"latency_ms":133,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null},{"iso":"2026-07-23T19:49:48.486Z","ok":1,"status":402,"latency_ms":140,"quote_valid":1,"price_usd":0.05,"asset":null,"network":null,"pay_to":null,"raw_amount":null,"method_used":null,"probe_class":null,"conclusive":1,"error":null}]}