{"id":"f71995b0-a6b","name":"cryptofeed402 MCP: crypto market data for agents (funding, OI, perps, prices, briefs)","description":"Crypto market data for AI agents over MCP (stateless streamable HTTP). Hyperliquid perps funding rates (hourly/8h/annualized), open interest, extreme-funding scan, one-call perps + news context, per-asset prices with OKX spot, news sentiment, and a twice-daily LLM-written market brief. Pay per call in USDC on Base via x402, from $0.002 per call; no account, no API key, no subscription; charged only on a valid 200. Free tools: pricing, teaser, sample brief. Example paid HTTP URLs: https://cryptofeed402.site/price/BTC ($0.0025), https://cryptofeed402.site/perps/context?symbols=BTC,ETH ($0.01), https://cryptofeed402.site/funding/extreme ($0.0025). Free sample responses: https://cryptofeed402.site/samples","endpoint_url":"https://cryptofeed402.site/mcp","endpoint_canonical":"https://cryptofeed402.site/mcp","category":"data.crypto","kind":"api","price_amount":0.002,"price_currency":"USDC","chains":["base"],"request_schema":null,"response_schema":null,"sample_query":"https://cryptofeed402.site/samples","facilitator_url":null,"status":"verified","delisted_reason":null,"origin":"submitted","ephemeral":false,"created_at":1793592327,"updated_at":1793622895,"status_changed_at":1793622895,"embedding_synced_at":1793592329,"score":1,"p50_latency_ms":1599,"p95_latency_ms":2636,"p99_latency_ms":3253,"probe_count":222,"probes_passed":222,"last_ok_at":1794020089,"consecutive_failures":0,"last_probed_at":1794020089,"probe_interval_s":1800,"distinct_payers":0,"x402_version":2,"transport":"mcp","obs_scheme":"exact","accepts_count":1,"accepts_index":0,"obs_network":"eip155:8453","obs_asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","obs_pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","amount_atomic":"2500","amount_usd":0.0025,"domain_name":"USD Coin","domain_version":"2","observed_at":1794020089,"obs_first_seen_at":1793622394,"price_changed_at":null,"pay_to_changed_at":null,"payto_unstable":false,"payto_distinct_recent":1,"onchain_provider_status":null,"onchain_payto_checked":"0x93e4b468a88b1f084efc781ec7a1e2d195a40d22","onchain_checked_at":1794018995,"onchain_last_attempt_at":1794018995,"onchain_provider_error":0,"onchain_source":"index","header_bytes":903,"verified_via":"MCP","testnet":false,"payment_protocols":["x402"],"mpp_methods":null,"mpp_offers":null,"mpp_note":null,"onchain_payto_shared_listings":3,"onchain_count_capped":false,"onchain_shape":null,"onchain_daily":[{"day":"2026-10-18","tx":5,"payers":2,"usd":0.0275},{"day":"2026-10-19","tx":3,"payers":2,"usd":0.015},{"day":"2026-10-23","tx":9,"payers":2,"usd":0.081},{"day":"2026-10-27","tx":2,"payers":1,"usd":0.0125},{"day":"2026-10-30","tx":5,"payers":4,"usd":0.0125},{"day":"2026-10-31","tx":2,"payers":2,"usd":0.005},{"day":"2026-11-01","tx":3,"payers":3,"usd":0.0075},{"day":"2026-11-02","tx":6,"payers":5,"usd":0.0215},{"day":"2026-11-04","tx":2,"payers":2,"usd":0.005},{"day":"2026-11-05","tx":2,"payers":2,"usd":0.005},{"day":"2026-11-06","tx":1,"payers":1,"usd":0.0025}],"latest_purchase_delivered":null,"latest_purchase_at":null,"paid_verification_latest":null,"paid_verification":{"verified":false},"has_sample":true,"method_note":"This endpoint asks for payment inside MCP tool results (the x402 MCP transport), not with an HTTP 402. Call it with an MCP client that handles x402.","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":null,"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":"Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.","verdict_age_seconds":517,"probe_tier":"watch","next_check_by":1794021889,"next_check_basis":"watch tier, re-probed every 30 minutes: unverified, failing (up to 10 in a row), failed in the last 24 h, payment terms changed in the last 7 days, or new or changed status in the last 7 days; a record past next_check_by is stale by our own rule","last_probed_at_iso":"2026-11-07T02:54:49Z","next_check_by_iso":"2026-11-07T03:24:49Z","status_changed_at_iso":"2026-11-02T12:34:55Z","paid_verified_at_iso":null,"probes_failed":0,"onchain_scope":"wallet-level, NOT this endpoint's: the payTo address is shared by 3 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 3 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":3,"pay_to":"0x93e4b468a88b1f084efc781ec7a1e2d195a40d22","tx_count_30d":40,"unique_payers_30d":13,"volume_usd_30d":0.195},"onchain_tx_count_30d":40,"onchain_unique_payers_30d":13,"onchain_volume_usd_30d":0.195,"created_at_iso":"2026-11-02T04:05:27Z","updated_at_iso":"2026-11-02T12:34:55Z","embedding_synced_at_iso":"2026-11-02T04:05:29Z","last_ok_at_iso":"2026-11-07T02:54:49Z","observed_at_iso":"2026-11-07T02:54:49Z","obs_first_seen_at_iso":"2026-11-02T12:26:34Z","onchain_checked_at_iso":"2026-11-07T02:36:35Z","onchain_last_attempt_at_iso":"2026-11-07T02:36:35Z","paid_verified_age_days":null,"latest_purchase_age_days":null,"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":"f71995b0-a6b","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: f71995b0-a6b\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":1794020089,"x402_version":2,"challenge_transport":"mcp","scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22","payment_options":1,"accepts_index":0,"extra":{"name":"USD Coin","version":"2"},"amount_atomic":"2500","amount_usd":0.0025,"eip712_domain":{"name":"USD Coin","version":"2"},"price_stable_since":1793622394,"price_matches_listing":false,"payto_stable_since":1793622394,"checked_at_iso":"2026-11-07T02:54:49Z","price_stable_since_iso":"2026-11-02T12:26:34Z","payto_stable_since_iso":"2026-11-02T12:26:34Z"}}