{"uid":"cap_ywDZYECeGjnRaaOz_mTjC","slug":"usgs-water-data-api-82b658c2","name":"USGS Water Data API","description":"Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.","url":"https://anibalb.duckdns.org/x402/usgs-water?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":3,"series":[{"site":"01646500","unit":"ft3/s","parameter":"00060","latest_value":"3200","parameter_name":"Discharge"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kltIoWMXEJqhfWF5pB3Sl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves real-time USGS streamflow and water discharge data for monitoring stations across the US","exampleAgentPrompt":"What's the current streamflow discharge reading from the USGS water monitoring stations — I need the latest ft3/s values for active sites right now.","exampleUseCases":[{"title":"River flood risk monitoring","prompt":"Check the current discharge levels from USGS water gauges so I can see if any rivers are running unusually high right now."},{"title":"Environmental research data pull","prompt":"Pull the latest USGS streamflow series data for me — I need the site IDs, parameter names, and current discharge values in ft3/s for my water quality report."},{"title":"Outdoor recreation flow check","prompt":"What are the current river flow rates according to USGS? I want to know if conditions are safe for kayaking this weekend."}],"resultDescription":"Returns a JSON object with a count of monitoring series and an array of series objects, each containing: site ID, unit of measurement (e.g. ft3/s), parameter code, latest observed value, and parameter name (e.g. Discharge). Typically covers multiple USGS gauge stations per response.","failureModes":["USGS upstream API unavailable — may return 502 or empty series array","Payment not received or invalid x402 header — returns 402 Payment Required","No active sites found — returns count 0 with empty series array","Network timeout on duckdns host — returns connection error","Malformed query params — returns 400 Bad Request"],"whenToPreferThis":"Choose this endpoint when you need real-time USGS streamflow or discharge data without setting up an account or API key, and are willing to pay $0.002 USDC per call via x402 on Base. Prefer it over direct USGS NWIS API calls when you need a frictionless, pay-per-use integration in an automated agent workflow. Best suited for spot checks and monitoring tasks rather than bulk historical pulls.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:42:06.893Z","isFirstParty":false,"canonicalSlug":"usgs-water-data-api-82b658c2"}