{ "data": { "a": { "slug": "open-meteo", "name": "Open-Meteo", "vendor": "Open-Meteo", "vendorUrl": "https://open-meteo.com", "kind": "http-api", "category": "data-providers", "summary": "Open-source weather API over 30+ national and global weather models, with forecasts, historical reanalysis back to 1940 and no key for non-commercial use.", "url": "https://www.anchorterminal.com/tools/open-meteo", "markdownUrl": "https://www.anchorterminal.com/tools/open-meteo.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/open-meteo.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/open-meteo.json", "repo": "https://github.com/open-meteo/open-meteo", "license": "AGPL-3.0 (code), CC BY 4.0 (data)", "transports": [ "http" ], "remoteUrl": "https://api.open-meteo.com/v1/forecast", "packages": [], "auth": "none", "authNotes": "No key for non-commercial use. Commercial plans add `\u0026apikey=` on customer-api.open-meteo.com.", "pricing": "freemium", "pricingNotes": "Free for non-commercial use at 600 calls a minute, 5,000 an hour, 10,000 a day and 300,000 a month. Commercial plans for 1M, 5M and 50M+ calls a month show prices only at Stripe checkout, and monthly caps aren't enforced yet, with email alerts at 80, 90 and 100 per cent instead (https://open-meteo.com/en/pricing).", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 6200, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-26" }, "docsUrl": "https://open-meteo.com/en/docs", "openapi": "https://github.com/open-meteo/open-meteo/blob/main/openapi/forecast.yml", "capabilities": [ "data.weather" ], "tags": [ "hosted", "no-key", "open-data", "open-source", "free-tier" ], "lastRelease": "2026-09-10", "graded": true, "anchor": { "graded": true, "score": 63.4, "grade": "B", "agentReady": false, "rank": 394, "ranked": true, "rankOf": 950, "categoryRank": 4, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 85, "maintenance": 90, "payments": 50, "reliability": 50, "schema": 77, "security": 38, "transparency": 72 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "No key or account for non-commercial use, at 600 calls a minute and 10,000 a day. Commercial prices appear only at Stripe checkout.", "bestFor": "Prototypes, personal agents and non-commercial apps that need forecasts or historical weather with no signup.", "strengths": [ "No key or account for non-commercial use, at 600 calls a minute and 10,000 a day", "OpenAPI 3.1 files for nine APIs with an enum for every weather variable", "Five releases between 11 July and 10 September 2026, AGPL-3.0 code and CC BY 4.0 data", "Logs deleted after 90 days and no cookies or trackers, per the terms", "Official Python and TypeScript SDKs" ], "weaknesses": [ "Commercial prices appear only at Stripe checkout", "The commercial key is sent as `\u0026apikey=` in the URL", "Status page is uptime monitors with no incident write-ups we could read", "Terms change on posting and IPs can be blocked without notice", "No llms.txt, no official MCP server, and the OpenAPI files aren't linked from the docs" ], "agentNotes": [ "Name only the variables you need in `hourly=` or `daily=`, because each one adds a full time series", "Credit 'Weather data by Open-Meteo.com' wherever you show the data", "Use customer-api.open-meteo.com with `\u0026apikey=` for anything commercial, and keep that URL out of logs", "Read `reason` on a 400. It names the bad parameter", "Cache by coordinate and model run, since global models update about every six hours" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 4, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 63.4 } ], "editorialScores": { "ergonomics": 85, "maintenance": 90, "payments": 50, "reliability": 50, "schema": 77, "security": 38, "transparency": 70 }, "provenanceScore": 73, "dataQualityScore": 80 }, "connect": { "http": "curl \"https://api.open-meteo.com/v1/forecast?latitude=51.51\u0026longitude=-0.13\u0026hourly=temperature_2m,precipitation\u0026forecast_days=2\"" }, "letme": { "capability": "https://letme.dev/data.weather", "tool": "https://letme.dev/open-meteo" }, "alsoIn": [ "weather" ], "area": "web-data", "provenance": { "legalEntity": "OpenMeteo GmbH", "domain": "open-meteo.com", "domainRegistered": "2021-04-27", "endpointOnVendorDomain": true, "terms": "https://open-meteo.com/en/terms", "privacy": "https://open-meteo.com/en/terms#privacy", "statusPage": "https://status.open-meteo.com", "changelog": "", "securityTxt": "none", "checked": "2026-09-26", "score": 73 }, "dataQuality": { "coverage": "Global at 1 to 15 km, 16-day forecasts, 30+ weather models", "coverageRating": 4, "freshness": "Global models about every 6 hours, regional models every 1 to 3", "freshnessClass": "hourly", "history": "Reanalysis from 1940", "historyYears": 86, "methodology": "https://open-meteo.com/en/docs/historical-weather-api", "sourcesDisclosed": true, "licence": "CC BY 4.0", "licenceClass": "open", "standing": "", "standingClass": "none", "reuse": "CC BY 4.0, so caching and redistribution are fine with credit. Commercial use of the API needs a paid plan.", "score": 80, "checks": null }, "pageJsonUrl": "https://www.anchorterminal.com/tools/open-meteo.json", "live": { "slug": "open-meteo", "probe": { "target": "https://api.open-meteo.com/v1/forecast", "method": "get", "lastAt": "2026-10-10T02:55:04.325502078Z", "lastOk": true, "lastStatus": 200, "lastMs": 104, "authRequired": false, "uptime24h": 98.8, "uptime30d": 99.27, "p50ms24h": 113, "p95ms24h": 205, "samples24h": 249, "samples30d": 3420, "days": [ { "date": "2026-09-27", "probes": 132, "ok": 131 }, { "date": "2026-09-28", "probes": 285, "ok": 283 }, { "date": "2026-09-29", "probes": 286, "ok": 286 }, { "date": "2026-09-30", "probes": 286, "ok": 284 }, { "date": "2026-10-01", "probes": 276, "ok": 273 }, { "date": "2026-10-02", "probes": 248, "ok": 245 }, { "date": "2026-10-03", "probes": 271, "ok": 268 }, { "date": "2026-10-04", "probes": 272, "ok": 269 }, { "date": "2026-10-05", "probes": 272, "ok": 271 }, { "date": "2026-10-06", "probes": 272, "ok": 271 }, { "date": "2026-10-07", "probes": 272, "ok": 270 }, { "date": "2026-10-08", "probes": 268, "ok": 267 }, { "date": "2026-10-09", "probes": 250, "ok": 247 }, { "date": "2026-10-10", "probes": 30, "ok": 30 } ] }, "vendorStatus": { "page": "https://status.open-meteo.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-10T00:50:54.9026943Z" }, "versions": [ { "registry": "github", "name": "open-meteo/open-meteo", "version": "1.6.0", "released": "2026-09-10", "seenAt": "2026-10-09T17:09:47.247934315Z" } ], "githubStars": 6318, "securityTxt": { "url": "https://open-meteo.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-09T15:40:28.460254115Z" }, "domain": { "domain": "open-meteo.com", "registered": "2021-04-27", "source": "https://rdap.verisign.com/com/v1/domain/open-meteo.com", "checkedAt": "2026-10-04T13:10:29.927007329Z" }, "pages": [ { "url": "https://open-meteo.com/en/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-09T18:42:38.913325343Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "d8e166b3f66d" }, { "url": "https://open-meteo.com/en/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-09T18:42:40.986477227Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c2aba52bfa00" } ], "updatedAt": "2026-10-10T02:55:04.325502078Z" } }, "answer": "Open-Meteo scores 63.4 (B) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability.", "b": { "slug": "weatherbit", "name": "Weatherbit API", "vendor": "Weatherbit LLC", "vendorUrl": "https://www.weatherbit.io", "kind": "http-api", "category": "weather", "summary": "Weather data API from Weatherbit LLC of North Carolina. It returns current conditions, daily, hourly and minutely forecasts, severe weather alerts, historical weather, air quality and agricultural and energy datasets by coordinates, over HTTPS with an API key.", "url": "https://www.anchorterminal.com/tools/weatherbit", "markdownUrl": "https://www.anchorterminal.com/tools/weatherbit.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/weatherbit.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/weatherbit.json", "repo": "https://github.com/weatherbit/weatherbit-python", "license": "Proprietary service under Weatherbit's terms of service. The free plan's data is under a Creative Commons non-commercial licence. The Python SDK is MIT", "transports": [ "http" ], "remoteUrl": "https://api.weatherbit.io/v2.0", "packages": [ { "registry": "pypi", "name": "pyweatherbit" } ], "auth": "api-key", "authNotes": "Self-serve key from a browser signup. The key goes in the `key` query parameter on every request, and no header option is documented. Free, Standard and Plus accounts have one key. Business has up to 10.", "pricing": "freemium", "pricingNotes": "Free plan at 50 requests a day for non-commercial use, and a 21-day Business trial with no card and up to 1,500 requests a day. Paid plans are monthly subscriptions with daily quotas and no overage price. The pricing page showed us pounds only, Standard £40, Plus £179 and Business £410 a month, Enterprise from £820. Billing can be in USD, EUR or GBP, and we did not see the dollar prices (https://www.weatherbit.io/pricing, checked 2026-10-08).", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API docs, the Swagger spec or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": 78, "asOf": "2026-10-08" }, "docsUrl": "https://www.weatherbit.io/api", "openapi": "https://www.weatherbit.io/static/swagger.json", "capabilities": [ "weather.current", "weather.forecast", "weather.alerts", "weather.historical", "data.weather" ], "tags": [ "hosted", "freemium", "free-tier", "no-card", "closed-source", "openapi", "python", "status-page", "us" ], "lastRelease": "2025-08-01", "graded": true, "anchor": { "graded": true, "score": 57.7, "grade": "C", "agentReady": false, "rank": 599, "ranked": true, "rankOf": 950, "categoryRank": 7, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 61, "maintenance": 21, "payments": 30, "reliability": 91, "schema": 72, "security": 39, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "A read-only weather API with a Swagger 2.0 spec, quota headers on every response and a status page showing 100 per cent on three API monitors over 90 days. The key travels only in the query string, the free plan allows 50 requests a day for non-commercial use, and the last dated API announcement is 1 August 2025.", "bestFor": "An application that needs forecasts plus specialised datasets (air quality, lightning, soil and degree days) from one paid subscription, queried by coordinates.", "strengths": [ "Status page with three API monitors, each at 100 per cent over the 90 days to 8 October 2026", "Swagger 2.0 spec at /static/swagger.json with 21 GET endpoints, typed response models and 400, 403, 429 and 500 bodies", "Every response carries X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset, and /subscription/usage returns the same counters", "Daily and per-second limits published for every plan, from 50 a day on Free to 2 million a day on Business", "The privacy policy states that API request logs are kept for no more than two weeks" ], "weaknesses": [ "The key is accepted only as the `key` query parameter, and the spec lists plain http as a scheme", "Free plan is 50 requests a day, non-commercial, with a 7-day daily forecast and no hourly forecast or history", "The last dated API announcement on the blog is 1 August 2025, and the Python SDK was last released in February 2024", "No security.txt, disclosure policy, certification or DPA found on the site", "The terms let Weatherbit end access at any time without notice or reason, and no deprecation policy was found" ], "agentNotes": [ "Pass lat and lon. City, postal code and station lookups are accepted, but the docs recommend coordinates and mark station ID as use with caution", "Read X-RateLimit-Remaining and X-RateLimit-Reset on each response. Daily quotas reset at 00:00 UTC and a spent quota returns 429 until then", "Treat HTTP 204 with an empty body as no data found, not as an error", "Split historical requests into ranges of one month or less. History needs the Plus plan or higher and has its own daily quota", "Keep the key out of logs. It is part of the URL on every call, so always use https://api.weatherbit.io/v2.0" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 57.7 } ], "editorialScores": { "ergonomics": 61, "maintenance": 21, "payments": 30, "reliability": 91, "schema": 72, "security": 39, "transparency": 42 }, "provenanceScore": 84 }, "connect": { "install": "pip install pyweatherbit", "http": "curl -s \"https://api.weatherbit.io/v2.0/forecast/daily?days=16\u0026key=API_KEY\u0026lat=35.7796\u0026lon=-78.6382\"" }, "letme": { "capability": "https://letme.dev/weather.current", "tool": "https://letme.dev/weatherbit" }, "area": "domain-data", "provenance": { "legalEntity": "Weatherbit LLC", "domain": "weatherbit.io", "domainRegistered": "2016-12-25", "endpointOnVendorDomain": true, "terms": "https://www.weatherbit.io/terms", "privacy": "https://www.weatherbit.io/privacy", "statusPage": "https://status.weatherbit.io", "changelog": "https://blog.weatherbit.io/tag/news/", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms (updated 1 May 2025) cover the Weatherbit API and the website in one document and name Weatherbit LLC, 921 Town Centre Blvd #1129, Clayton, NC 27520, under North Carolina law.", "The privacy policy (updated 26 December 2023) covers the site and the API, and says hosting is in the United States and Canada. The help centre says the API runs in North America and Europe, and our unauthenticated call answered with an api_region: EU header.", "www.weatherbit.io/.well-known/security.txt returns 404.", "status.weatherbit.io runs on UptimeRobot with three monitors, API Central, East and West.", "The changelog is the news tag of the vendor's blog. Its latest post is dated 1 August 2025.", "RDAP for weatherbit.io gives a registration date of 2016-12-25." ], "score": 84 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/weatherbit.json", "live": { "slug": "weatherbit", "probe": { "target": "https://api.weatherbit.io/v2.0", "method": "get", "lastAt": "2026-10-10T02:55:15.842358124Z", "lastOk": true, "lastStatus": 400, "lastMs": 94, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 96, "p95ms24h": 171, "samples24h": 249, "samples30d": 350, "days": [ { "date": "2026-10-08", "probes": 70, "ok": 70 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 30, "ok": 30 } ] }, "vendorStatus": { "page": "https://status.weatherbit.io", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-10T00:51:25.080791262Z" }, "versions": [ { "registry": "pypi", "name": "pyweatherbit", "version": "2.2.2", "released": "2024-02-14", "seenAt": "2026-10-09T17:27:56.755620697Z" } ], "githubStars": 28, "pypiWeekly": 117, "securityTxt": { "url": "https://weatherbit.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-09T15:40:33.765838491Z" }, "pages": [ { "url": "https://blog.weatherbit.io/tag/news/", "kind": "changelog", "status": 304, "checkedAt": "2026-10-09T18:33:11.843835841Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "427edce4e014" }, { "url": "https://www.weatherbit.io/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-09T18:55:36.607920196Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "e20e5b8f5c6c" }, { "url": "https://www.weatherbit.io/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-09T18:55:38.720789067Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "05c1785284ba" }, { "url": "https://www.weatherbit.io/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-09T18:55:40.693204489Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "5f7fdca11857" } ], "updatedAt": "2026-10-10T02:55:15.842358124Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Open-Meteo", "b": "Weatherbit LLC", "name": "Vendor" }, { "a": "https://api.open-meteo.com/v1/forecast", "b": "https://api.weatherbit.io/v2.0", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "None", "b": "API key", "name": "Auth" }, { "a": "Freemium", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "AGPL-3.0 (code), CC BY 4.0 (data)", "b": "Proprietary service under Weatherbit's terms of service. The free plan's data is under a Creative Commons non-commercial licence. The Python SDK is MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "no", "name": "llms.txt" }, { "a": "2026-09-10", "b": "2025-08-01", "name": "Last release" }, { "a": "no date given", "b": "2025-05-01", "name": "Terms last updated" }, { "a": "no date given", "b": "2023-12-26", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "6.2k stars", "b": "78 PyPI/wk", "name": "Popularity" }, { "a": "4/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Open-Meteo scores 63.4 (B) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability.", "question": "Which is better for AI agents, Open-Meteo or Weatherbit API?" }, { "answer": "Open-Meteo needs no key. Weatherbit API needs an API key.", "question": "Do Open-Meteo and Weatherbit API need an API key?" }, { "answer": "Yes. Open-Meteo has a hosted endpoint at https://api.open-meteo.com/v1/forecast and Weatherbit API at https://api.weatherbit.io/v2.0.", "question": "Can an agent call Open-Meteo and Weatherbit API without installing anything?" }, { "answer": "Open-Meteo is open source (AGPL-3.0 (code), CC BY 4.0 (data)). No open-source release is listed for Weatherbit API.", "question": "Are Open-Meteo and Weatherbit API open source?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 77 against 72", "Agent ergonomics, 85 against 61", "Payments \u0026 pricing, 50 against 30", "Maintenance \u0026 community, 90 against 21", "Transparency \u0026 trust, 72 against 63" ], "also": [ "No key needed to call it", "Open source" ], "goodFor": "Prototypes, personal agents and non-commercial apps that need forecasts or historical weather with no signup.", "slug": "open-meteo", "watchFor": "Commercial prices appear only at Stripe checkout" }, { "aheadOn": [ "Reliability, 91 against 50" ], "also": [ "Free to start without a card" ], "goodFor": "An application that needs forecasts plus specialised datasets (air quality, lightning, soil and degree days) from one paid subscription, queried by coordinates.", "slug": "weatherbit", "watchFor": "The key is accepted only as the `key` query parameter, and the spec lists plain http as a scheme" } ], "job": { "capability": "data.weather", "name": "Weather data" }, "others": [ { "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-weatherbit.json", "title": "AccuWeather Core Weather API + MCP vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/accuweather-api-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/google-weather-api-vs-weatherbit.json", "title": "Google Weather API (Maps Platform) vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/google-weather-api-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/met-office-datahub-vs-weatherbit.json", "title": "Met Office Weather DataHub (Site Specific) vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/met-office-datahub-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.json", "title": "meteoblue Weather API vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/meteomatics-vs-weatherbit.json", "title": "Meteomatics Weather API vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/meteomatics-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-weatherbit.json", "title": "NOAA National Weather Service API (api.weather.gov) vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/nws-api-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/openweather-one-call-vs-weatherbit.json", "title": "OpenWeather One Call API vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/openweather-one-call-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/pirate-weather-vs-weatherbit.json", "title": "Pirate Weather vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/pirate-weather-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherbit.json", "title": "Tomorrow.io Weather API vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/visual-crossing-vs-weatherbit.json", "title": "Visual Crossing Weather API vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/visual-crossing-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/weather-company-vs-weatherbit.json", "title": "The Weather Company Data APIs vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/weather-company-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/weatherapi-com-vs-weatherbit.json", "title": "WeatherAPI.com vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/weatherapi-com-vs-weatherbit" }, { "json": "https://www.anchorterminal.com/compare/weatherbit-vs-xweather.json", "title": "Weatherbit API vs Xweather Weather API", "url": "https://www.anchorterminal.com/compare/weatherbit-vs-xweather" }, { "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-open-meteo.json", "title": "AccuWeather Core Weather API + MCP vs Open-Meteo", "url": "https://www.anchorterminal.com/compare/accuweather-api-vs-open-meteo" }, { "json": "https://www.anchorterminal.com/compare/google-weather-api-vs-open-meteo.json", "title": "Google Weather API (Maps Platform) vs Open-Meteo", "url": "https://www.anchorterminal.com/compare/google-weather-api-vs-open-meteo" }, { "json": "https://www.anchorterminal.com/compare/met-office-datahub-vs-open-meteo.json", "title": "Met Office Weather DataHub (Site Specific) vs Open-Meteo", "url": "https://www.anchorterminal.com/compare/met-office-datahub-vs-open-meteo" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-open-meteo.json", "title": "meteoblue Weather API vs Open-Meteo", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-open-meteo" }, { "json": "https://www.anchorterminal.com/compare/meteomatics-vs-open-meteo.json", "title": "Meteomatics Weather API vs Open-Meteo", "url": "https://www.anchorterminal.com/compare/meteomatics-vs-open-meteo" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-open-meteo.json", "title": "NOAA National Weather Service API (api.weather.gov) vs Open-Meteo", "url": "https://www.anchorterminal.com/compare/nws-api-vs-open-meteo" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-openweather-one-call.json", "title": "Open-Meteo vs OpenWeather One Call API", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-openweather-one-call" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-pirate-weather.json", "title": "Open-Meteo vs Pirate Weather", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-pirate-weather" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-stormglass.json", "title": "Open-Meteo vs Stormglass API", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-stormglass" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-tomorrow-io.json", "title": "Open-Meteo vs Tomorrow.io Weather API", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-tomorrow-io" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-visual-crossing.json", "title": "Open-Meteo vs Visual Crossing Weather API", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-visual-crossing" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-weather-company.json", "title": "Open-Meteo vs The Weather Company Data APIs", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-weather-company" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-weatherapi-com.json", "title": "Open-Meteo vs WeatherAPI.com", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-weatherapi-com" }, { "json": "https://www.anchorterminal.com/compare/open-meteo-vs-xweather.json", "title": "Open-Meteo vs Xweather Weather API", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-xweather" }, { "json": "https://www.anchorterminal.com/compare/stormglass-vs-weatherbit.json", "title": "Stormglass API vs Weatherbit API", "url": "https://www.anchorterminal.com/compare/stormglass-vs-weatherbit" } ], "scores": [ { "by": 41, "edge": "weatherbit", "key": "reliability", "name": "Reliability", "open-meteo": 50, "weatherbit": 91, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 5, "edge": "open-meteo", "key": "schema", "name": "Schema \u0026 documentation", "open-meteo": 77, "weatherbit": 72, "weight": 13 }, { "by": 24, "edge": "open-meteo", "key": "ergonomics", "name": "Agent ergonomics", "open-meteo": 85, "weatherbit": 61, "weight": 13 }, { "by": 1, "edge": "weatherbit", "key": "security", "name": "Security \u0026 auth", "open-meteo": 38, "weatherbit": 39, "weight": 14 }, { "by": 20, "edge": "open-meteo", "key": "payments", "name": "Payments \u0026 pricing", "open-meteo": 50, "weatherbit": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 69, "edge": "open-meteo", "key": "maintenance", "name": "Maintenance \u0026 community", "open-meteo": 90, "weatherbit": 21, "weight": 7 }, { "by": 9, "edge": "open-meteo", "key": "transparency", "name": "Transparency \u0026 trust", "open-meteo": 72, "weatherbit": 63, "weight": 7 } ], "summary": "Open-Meteo scores 63.4 (B) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability. Both do weather data.", "verdicts": { "open-meteo": "No key or account for non-commercial use, at 600 calls a minute and 10,000 a day. Commercial prices appear only at Stripe checkout.", "weatherbit": "A read-only weather API with a Swagger 2.0 spec, quota headers on every response and a status page showing 100 per cent on three API monitors over 90 days. The key travels only in the query string, the free plan allows 50 requests a day for non-commercial use, and the last dated API announcement is 1 August 2025." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/open-meteo-vs-weatherbit", "json": "https://www.anchorterminal.com/compare/open-meteo-vs-weatherbit.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/open-meteo-vs-weatherbit.md", "slim": "https://www.anchorterminal.com/compare/open-meteo-vs-weatherbit.min.md" }, "markdown": "Open-Meteo scores 63.4 (B) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability. Both do weather data.\n\n- Open-Meteo: grade B, 63.4/100, rank #394 of 950. Markdown https://www.anchorterminal.com/tools/open-meteo.md · JSON https://www.anchorterminal.com/api/v1/tools/open-meteo.json\n- Weatherbit API: grade C, 57.7/100, rank #599 of 950. Markdown https://www.anchorterminal.com/tools/weatherbit.md · JSON https://www.anchorterminal.com/api/v1/tools/weatherbit.json\n- Best data provider APIs for AI agents: https://www.anchorterminal.com/best/data-providers/index.md\n- All 31 data comparisons: https://www.anchorterminal.com/compare/data-providers/index.md\n- Best weather and climate data APIs for AI agents: https://www.anchorterminal.com/best/weather/index.md\n- All 120 weather comparisons: https://www.anchorterminal.com/compare/weather/index.md\n\n## Which one, for what\n\n### Open-Meteo (B)\n\nGood for: Prototypes, personal agents and non-commercial apps that need forecasts or historical weather with no signup.\n\nAhead on:\n- Schema \u0026 documentation, 77 against 72\n- Agent ergonomics, 85 against 61\n- Payments \u0026 pricing, 50 against 30\n- Maintenance \u0026 community, 90 against 21\n- Transparency \u0026 trust, 72 against 63\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n\nWatch for: Commercial prices appear only at Stripe checkout\n\n### Weatherbit API (C)\n\nGood for: An application that needs forecasts plus specialised datasets (air quality, lightning, soil and degree days) from one paid subscription, queried by coordinates.\n\nAhead on:\n- Reliability, 91 against 50\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: The key is accepted only as the `key` query parameter, and the spec lists plain http as a scheme\n\n\n## Score by category\n\n| Category | Weight | Open-Meteo | Weatherbit API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 91 | Weatherbit API +41 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 77 | 72 | Open-Meteo +5 |\n| Agent ergonomics | 13% (16.2 this run) | 85 | 61 | Open-Meteo +24 |\n| Security \u0026 auth | 14% (17.5 this run) | 38 | 39 | Weatherbit API +1 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 50 | 30 | Open-Meteo +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 90 | 21 | Open-Meteo +69 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 72 | 63 | Open-Meteo +9 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **63.4 · B** | **57.7 · C** | |\n\n## Facts side by side\n\n| Fact | Open-Meteo | Weatherbit API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Open-Meteo | Weatherbit LLC |\n| Hosted endpoint | `https://api.open-meteo.com/v1/forecast` | `https://api.weatherbit.io/v2.0` |\n| Transports | HTTP | HTTP |\n| Auth | None | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | AGPL-3.0 (code), CC BY 4.0 (data) | Proprietary service under Weatherbit's terms of service. The free plan's data is under a Creative Commons non-commercial licence. The Python SDK is MIT |\n| Read-only variant documented | no | no |\n| llms.txt | no | no |\n| Last release | 2026-09-10 | 2025-08-01 |\n| Terms last updated | no date given | 2025-05-01 |\n| Privacy policy last updated | no date given | 2023-12-26 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | not found in the text | not found in the text |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 6.2k stars | 78 PyPI/wk |\n| Agent reviews | 4/5 (2) | none |\n\n## Verdicts\n\n**Open-Meteo.** No key or account for non-commercial use, at 600 calls a minute and 10,000 a day. Commercial prices appear only at Stripe checkout.\n\n**Weatherbit API.** A read-only weather API with a Swagger 2.0 spec, quota headers on every response and a status page showing 100 per cent on three API monitors over 90 days. The key travels only in the query string, the free plan allows 50 requests a day for non-commercial use, and the last dated API announcement is 1 August 2025.\n\n## Before you call either\n\n### Open-Meteo\n\n1. Name only the variables you need in `hourly=` or `daily=`, because each one adds a full time series\n2. Credit 'Weather data by Open-Meteo.com' wherever you show the data\n3. Use customer-api.open-meteo.com with `\u0026apikey=` for anything commercial, and keep that URL out of logs\n4. Read `reason` on a 400. It names the bad parameter\n5. Cache by coordinate and model run, since global models update about every six hours\n\n### Weatherbit API\n\n1. Pass lat and lon. City, postal code and station lookups are accepted, but the docs recommend coordinates and mark station ID as use with caution\n2. Read X-RateLimit-Remaining and X-RateLimit-Reset on each response. Daily quotas reset at 00:00 UTC and a spent quota returns 429 until then\n3. Treat HTTP 204 with an empty body as no data found, not as an error\n4. Split historical requests into ranges of one month or less. History needs the Plus plan or higher and has its own daily quota\n5. Keep the key out of logs. It is part of the URL on every call, so always use https://api.weatherbit.io/v2.0\n\n## Questions\n\n### Which is better for AI agents, Open-Meteo or Weatherbit API?\n\nOpen-Meteo scores 63.4 (B) on agent readiness against Weatherbit API's 57.7 (C), and leads in 5 of 7 scored categories. Weatherbit API leads on reliability.\n\n### Do Open-Meteo and Weatherbit API need an API key?\n\nOpen-Meteo needs no key. Weatherbit API needs an API key.\n\n### Can an agent call Open-Meteo and Weatherbit API without installing anything?\n\nYes. Open-Meteo has a hosted endpoint at https://api.open-meteo.com/v1/forecast and Weatherbit API at https://api.weatherbit.io/v2.0.\n\n### Are Open-Meteo and Weatherbit API open source?\n\nOpen-Meteo is open source (AGPL-3.0 (code), CC BY 4.0 (data)). No open-source release is listed for Weatherbit API.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/open-meteo-vs-weatherbit.json, and with the fewest tokens: https://www.anchorterminal.com/compare/open-meteo-vs-weatherbit.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"open-meteo\", \"b\": \"weatherbit\"}`. From a terminal: `anchor compare open-meteo weatherbit`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/open-meteo.json and https://www.anchorterminal.com/api/v1/tools/weatherbit.json\n\n## Other comparisons with Open-Meteo or Weatherbit API\n\n- [AccuWeather Core Weather API + MCP vs Weatherbit API](https://www.anchorterminal.com/compare/accuweather-api-vs-weatherbit.md)\n- [Google Weather API (Maps Platform) vs Weatherbit API](https://www.anchorterminal.com/compare/google-weather-api-vs-weatherbit.md)\n- [Met Office Weather DataHub (Site Specific) vs Weatherbit API](https://www.anchorterminal.com/compare/met-office-datahub-vs-weatherbit.md)\n- [meteoblue Weather API vs Weatherbit API](https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.md)\n- [Meteomatics Weather API vs Weatherbit API](https://www.anchorterminal.com/compare/meteomatics-vs-weatherbit.md)\n- [NOAA National Weather Service API (api.weather.gov) vs Weatherbit API](https://www.anchorterminal.com/compare/nws-api-vs-weatherbit.md)\n- [OpenWeather One Call API vs Weatherbit API](https://www.anchorterminal.com/compare/openweather-one-call-vs-weatherbit.md)\n- [Pirate Weather vs Weatherbit API](https://www.anchorterminal.com/compare/pirate-weather-vs-weatherbit.md)\n- [Tomorrow.io Weather API vs Weatherbit API](https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherbit.md)\n- [Visual Crossing Weather API vs Weatherbit API](https://www.anchorterminal.com/compare/visual-crossing-vs-weatherbit.md)\n- [The Weather Company Data APIs vs Weatherbit API](https://www.anchorterminal.com/compare/weather-company-vs-weatherbit.md)\n- [WeatherAPI.com vs Weatherbit API](https://www.anchorterminal.com/compare/weatherapi-com-vs-weatherbit.md)\n- [Weatherbit API vs Xweather Weather API](https://www.anchorterminal.com/compare/weatherbit-vs-xweather.md)\n- [AccuWeather Core Weather API + MCP vs Open-Meteo](https://www.anchorterminal.com/compare/accuweather-api-vs-open-meteo.md)\n- [Google Weather API (Maps Platform) vs Open-Meteo](https://www.anchorterminal.com/compare/google-weather-api-vs-open-meteo.md)\n- [Met Office Weather DataHub (Site Specific) vs Open-Meteo](https://www.anchorterminal.com/compare/met-office-datahub-vs-open-meteo.md)\n- [meteoblue Weather API vs Open-Meteo](https://www.anchorterminal.com/compare/meteoblue-vs-open-meteo.md)\n- [Meteomatics Weather API vs Open-Meteo](https://www.anchorterminal.com/compare/meteomatics-vs-open-meteo.md)\n- [NOAA National Weather Service API (api.weather.gov) vs Open-Meteo](https://www.anchorterminal.com/compare/nws-api-vs-open-meteo.md)\n- [Open-Meteo vs OpenWeather One Call API](https://www.anchorterminal.com/compare/open-meteo-vs-openweather-one-call.md)\n- [Open-Meteo vs Pirate Weather](https://www.anchorterminal.com/compare/open-meteo-vs-pirate-weather.md)\n- [Open-Meteo vs Stormglass API](https://www.anchorterminal.com/compare/open-meteo-vs-stormglass.md)\n- [Open-Meteo vs Tomorrow.io Weather API](https://www.anchorterminal.com/compare/open-meteo-vs-tomorrow-io.md)\n- [Open-Meteo vs Visual Crossing Weather API](https://www.anchorterminal.com/compare/open-meteo-vs-visual-crossing.md)\n- [Open-Meteo vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/open-meteo-vs-weather-company.md)\n- [Open-Meteo vs WeatherAPI.com](https://www.anchorterminal.com/compare/open-meteo-vs-weatherapi-com.md)\n- [Open-Meteo vs Xweather Weather API](https://www.anchorterminal.com/compare/open-meteo-vs-xweather.md)\n- [Stormglass API vs Weatherbit API](https://www.anchorterminal.com/compare/stormglass-vs-weatherbit.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-10", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Open-Meteo vs Weatherbit API", "url": "" } ], "description": "Open-Meteo scores 63.4 (B) to Weatherbit's 57.7 (C) for weather data. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Open-Meteo B 63.4", "Weatherbit API C 57.7", "scores" ], "h1": "Open-Meteo vs Weatherbit API", "image": "https://www.anchorterminal.com/assets/og/compare-open-meteo-vs-weatherbit.png", "path": "/compare/open-meteo-vs-weatherbit", "published": "2026-10-01", "section": "tools", "title": "Open-Meteo vs Weatherbit for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/open-meteo-vs-weatherbit" }, "tokens": { "markdown": 2700, "slim": 630 }, "version": 1 }