{"uid":"cap_jF5L2eC1xLaSa8K32b29u","slug":"cn-data-china-earthquake-feed-293dd9d7","name":"CN Data – China Earthquake Feed","description":"Chinese market and China-focused public data over the x402 protocol. No API key and no signup: call any endpoint, receive HTTP 402 with payment terms, pay the listed amount in USDC on Base and retry. Every response is JSON. Some Chinese-language sources are published only as web pages — these endpoints return them as clean, machine-readable JSON.","url":"https://cn-data-x402.cn-data-x402-worker.workers.dev/cn/earthquake?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"days":{"type":"integer","description":"往回查几天 1-30，默认 7"},"limit":{"type":"integer","description":"返回条数 1-100，默认 30"},"minMagnitude":{"type":"number","description":"最小震级 0-9，默认 3"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"data":{"items":[{"id":"us7000abcd","url":"https://earthquake.usgs.gov/earthquakes/eventpage/us7000abcd","place":"85 km SSW of Kashgar, China","depthKm":24.5,"timeUtc":"2026-10-03T01:22:31.000Z","tsunami":false,"latitude":38.9,"longitude":75.2,"magnitude":4.6}],"total":6,"region":"中国及周边（北纬18-54，东经73-136）","windowDays":7,"minMagnitude":3},"endpoint":"/cn/earthquake"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_QpfJb1S8nboveoVo_XXBe","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns recent earthquake events in China and surrounding regions as machine-readable JSON, filtered by time window, count, and minimum magnitude","exampleAgentPrompt":"Pull the earthquake feed for China and surrounding areas for the last 14 days, show me only events with magnitude 4 or higher, and return up to 50 results.","exampleUseCases":[{"title":"Daily seismic monitoring alert","prompt":"Every morning, check for earthquakes in China from the past day with magnitude 3 or higher and summarize any significant events for me."},{"title":"Supply chain risk assessment","prompt":"I have suppliers in Sichuan and Yunnan — can you pull the last 30 days of earthquake data for China with a minimum magnitude of 4 so I can flag any events near those provinces?"},{"title":"Research dataset for recent activity","prompt":"I'm analyzing seismic patterns near the Tibetan Plateau — fetch up to 100 earthquake events from China and the surrounding region over the past 30 days with no magnitude filter below 2."}],"resultDescription":"A JSON object containing an array of earthquake events, each with a unique USGS ID, place description, depth in km, UTC timestamp, magnitude, latitude/longitude coordinates, tsunami flag, and a link to the USGS event page. Also includes total count, the queried region description (China and surrounding area, lat 18–54, lon 73–136), the time window in days, and the minimum magnitude applied.","failureModes":["Payment not made or incorrect USDC amount returns HTTP 402 with payment terms","days parameter out of range (1–30) may return validation error or default value","limit parameter out of range (1–100) may be clamped or rejected","minMagnitude out of range (0–9) may return validation error","No earthquakes matching filters returns empty items array with total:0","Upstream USGS data unavailable may return error or stale data"],"whenToPreferThis":"Use this endpoint when you need structured, machine-readable earthquake data specifically for the China and surrounding East Asia region (18°–54°N, 73°–136°E) without needing an API key or account. It is ideal for agents that need to pay-per-call via x402/USDC and want clean JSON from Chinese-language or USGS sources. Prefer this over raw USGS queries when you need the data scoped to China, pre-filtered, and formatted as simple JSON.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:41:42.028Z","isFirstParty":false,"canonicalSlug":"cn-data-china-earthquake-feed-293dd9d7"}