{ "data": { "a": { "slug": "meteoblue", "name": "meteoblue Weather API", "vendor": "meteoblue AG", "vendorUrl": "https://www.meteoblue.com", "kind": "http-api", "category": "weather", "summary": "Weather data APIs from meteoblue AG of Basel, Switzerland. The Forecast API returns point forecasts in packages by coordinates, with History, Warnings, Dataset, Image and Maps APIs beside it, over HTTPS with an API key.", "url": "https://www.anchorterminal.com/tools/meteoblue", "markdownUrl": "https://www.anchorterminal.com/tools/meteoblue.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/meteoblue.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/meteoblue.json", "repo": "https://github.com/meteoblue/python-dataset-sdk", "license": "Proprietary service under meteoblue's general terms and conditions. The Python SDK for the Dataset API is MIT", "transports": [ "http" ], "remoteUrl": "https://my.meteoblue.com", "packages": [ { "registry": "pypi", "name": "meteoblue-dataset-sdk" } ], "auth": "api-key", "authNotes": "Self-serve key from a meteoblue account, created in a browser and managed in the Weather API Manager. The key goes in the `apikey` query parameter on every request, and no header option is documented. An account can hold several keys, each with a daily credit limit, an IP allow list, a referrer allow list and an optional shared secret for HMAC-SHA256 signed URLs. Paid plans start with an enquiry.", "pricing": "freemium", "pricingNotes": "Free Weather API with 10 million credits for one year from a free account, covering nine forecast packages, so an agent's owner can start without a contract. Calls cost 4,000 to 96,000 credits by package. The Premium Weather API is shown at EUR 2,400 a year for 40,000 calls a month, with larger tiers by enquiry. Prepaid credit prices are shown only after login (https://business.meteoblue.com/pricing, checked 2026-10-08).", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API docs, the OpenAPI specs or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 8, "npmWeekly": null, "pypiWeekly": 512, "asOf": "2026-10-08" }, "docsUrl": "https://docs.meteoblue.com/en/weather-apis/introduction/overview", "llmsTxt": "https://business.meteoblue.com/llms.txt", "openapi": "https://my.meteoblue.com/packages/openapi.json", "capabilities": [ "weather.current", "weather.forecast", "weather.historical", "weather.alerts", "weather.marine", "data.weather" ], "tags": [ "hosted", "freemium", "free-tier", "closed-source", "openapi", "llms-txt", "python", "status-page", "europe" ], "lastRelease": "2026-08-22", "graded": true, "anchor": { "graded": true, "score": 61.7, "grade": "C", "agentReady": false, "rank": 360, "ranked": true, "rankOf": 722, "categoryRank": 5, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 66, "maintenance": 57, "payments": 34, "reliability": 75, "schema": 77, "security": 51, "transparency": 61 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "Eight of the APIs publish OpenAPI 3.1 specs, and the Forecast API spec lists the credit cost of every package. A public Pingdom page shows monthly uptime per API. The key travels only in the query string, the free trial covers nine forecast packages, and no security.txt, certification or DPA was found.", "bestFor": "Energy, agriculture and marine applications that need solar, wind, soil, sea or ensemble variables at a point, with history back to 1940 on a paid plan.", "strengths": [ "OpenAPI 3.1 specs for the Forecast (54 paths), History, Dataset, Image, Warnings, Measurements, Accounting and Model-Run Archive APIs, each at `openapi.json` beside its ReDoc page", "The Forecast API spec lists credits per package, 4,000 for `basic-day` and `current`, 8,000 for `basic-1h`, and each response carries an `MB-Credits-Accounted` header", "Free Weather API with 10 million credits for one year from a self-serve account, with no purchase obligation stated", "Keys can be limited by daily credits, IP range and referrer, or tied to an HMAC-SHA256 signature with an expiry time", "Pingdom status page with 15 monitors and monthly history. The Forecast API monitor shows one 2-minute outage in the 90 days to 8 October 2026" ], "weaknesses": [ "The key is accepted only as the `apikey` query parameter, so it appears in URLs and logs unless request signing is switched on", "The free trial covers nine forecast packages at hourly or coarser steps. Current conditions, sea, history, warnings and the Dataset API need a paid plan", "No security.txt, disclosure policy, SOC 2 or ISO 27001 was found. The only certificate published is ISO 9001:2015", "The general terms date from 24 May 2018, give no API-specific clauses and let meteoblue change or revoke them at any time", "The History API monitor shows an outage of 1 hour 26 minutes on 1 September 2026, and the status page is served over plain http only" ], "agentNotes": [ "Pass `lat`, `lon` and `apikey` to `https://my.meteoblue.com/packages/\u003cpackage\u003e`. Join packages with commas, such as `basic-1h,basic-day`, to get several in one call", "Budget credits before calling. One call costs 4,000 to 96,000 credits by package, and the free trial holds 10 million for a year. Read `MB-Credits-Accounted` on each response", "Set `forecastDays` and pick the coarsest resolution that does the job. Without it the API returns every forecast day it has", "Call with a 30-second timeout, wait 30 seconds after an error and stop after 10 retries, as the availability page advises. The default limit is 500 calls a minute", "Keep the key out of logs, since it is part of every URL. Ask for a shared secret and send `expire` and `sig` if URLs may be seen by others" ], "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": 61.7 } ], "editorialScores": { "ergonomics": 66, "maintenance": 57, "payments": 34, "reliability": 75, "schema": 77, "security": 51, "transparency": 35 }, "provenanceScore": 87 }, "connect": { "install": "pip install meteoblue-dataset-sdk", "http": "curl \"https://my.meteoblue.com/packages/basic-1h?lat=47.5596\u0026lon=7.5886\u0026tz=utc\u0026apikey=YOUR_APIKEY\"" }, "letme": { "capability": "https://letme.dev/weather.current", "tool": "https://letme.dev/meteoblue" }, "area": "domain-data", "provenance": { "legalEntity": "meteoblue AG", "domain": "meteoblue.com", "domainRegistered": "2005-11-15", "endpointOnVendorDomain": true, "terms": "https://business.meteoblue.com/terms-conditions", "privacy": "https://business.meteoblue.com/privacy-policy", "statusPage": "http://status.meteoblue.com/", "changelog": "https://business.meteoblue.com/changelog", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms and conditions (last revised 24 May 2018) are meteoblue's general terms for all services, products and data, the API included. They name meteoblue AG, Basel, under Swiss law with Basel as forum. No separate API agreement is published, and commercial terms are agreed in writing.", "The privacy policy (last revised 15 May 2024) states that it applies to all meteoblue services however they are used, and names the website, apps and API. The same two texts are also served at content.meteoblue.com/en/about-us/legal/.", "The imprint gives meteoblue AG, Greifengasse 38, CH-4058 Basel, commercial register number CHE-113.182.626.", "The APIs answer at my.meteoblue.com, warnings-api.meteoblue.com and measurements-api.meteoblue.com, behind Cloudflare.", "/.well-known/security.txt returns 404 on www.meteoblue.com, my.meteoblue.com, business.meteoblue.com and docs.meteoblue.com, and 403 on content.meteoblue.com.", "status.meteoblue.com is a Pingdom public report with 15 monitors. It answers over http. Over https the certificate does not match the host name.", "The changelog is on the business site, 19 dated entries from 11 August 2025 to 22 August 2026, mostly data and model additions.", "RDAP for meteoblue.com gives a registration date of 2005-11-15." ], "score": 87 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/meteoblue.json", "live": { "slug": "meteoblue", "probe": { "target": "https://my.meteoblue.com", "method": "get", "lastAt": "2026-10-08T21:12:15.476668876Z", "lastOk": true, "lastStatus": 404, "lastMs": 68, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 68, "p95ms24h": 164, "samples24h": 21, "samples30d": 21, "days": [ { "date": "2026-10-08", "probes": 21, "ok": 21 } ] }, "vendorStatus": { "page": "http://status.meteoblue.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-08T19:38:46.956747067Z" }, "updatedAt": "2026-10-08T21:12:15.476668876Z" } }, "answer": "meteoblue Weather API scores 61.7 (C) on agent readiness against NOAA National Weather Service API (api.weather.gov)'s 49.6 (D), and leads in 3 of 7 scored categories. NOAA National Weather Service API (api.weather.gov) leads on payments \u0026 pricing.", "b": { "slug": "nws-api", "name": "NOAA National Weather Service API (api.weather.gov)", "vendor": "National Weather Service", "vendorUrl": "https://www.weather.gov/documentation/services-web-api", "kind": "http-api", "category": "weather", "summary": "The US government's own forecast, alert and observation feed, free, keyless and public domain.", "url": "https://www.anchorterminal.com/tools/nws-api", "markdownUrl": "https://www.anchorterminal.com/tools/nws-api.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/nws-api.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/nws-api.json", "repo": "https://github.com/weather-gov/api", "license": "Public domain (data)", "transports": [ "http" ], "remoteUrl": "https://api.weather.gov", "packages": [], "auth": "none", "authNotes": "No key. A User-Agent header that identifies the application, ideally with a contact email, is required and requests without one are refused.", "pricing": "free", "pricingNotes": "Free. The rate limit isn't published but is described as generous for typical use, and a throttled request can be retried after about five seconds (https://www.weather.gov/documentation/services-web-api).", "priceSummary": "Free", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 310, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://www.weather.gov/documentation/services-web-api", "openapi": "https://api.weather.gov/openapi.json", "capabilities": [ "weather.current", "weather.forecast", "weather.alerts", "data.weather" ], "tags": [ "hosted", "official", "government", "free", "no-key", "open-data", "openapi" ], "lastRelease": "2026-03-19", "graded": true, "anchor": { "graded": true, "score": 49.6, "grade": "D", "agentReady": false, "rank": 605, "ranked": true, "rankOf": 722, "categoryRank": 11, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 66, "maintenance": 8, "payments": 60, "reliability": 25, "schema": 67, "security": 53, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Free, no key and no account, with public domain data. US and territories only.", "bestFor": "The authoritative US forecast and alert feed, best for alerting and US-only agents that can tolerate a government service's availability.", "strengths": [ "Free, no key and no account, with public domain data", "Official watches, warnings and text products from the issuing agency, filterable by point, zone, event and severity", "OpenAPI 3.0 document and RFC 7807 error bodies", "Cache-Control and Last-Modified on every response, so conditional requests work" ], "weaknesses": [ "US and territories only", "Rate limit not published, and no status page or SLA", "No dated API change since 17 March 2026, and several 2026 forum questions unanswered", "No SDK, MCP server, llms.txt or security.txt" ], "agentNotes": [ "Set User-Agent to your app name and a contact email or the request is refused with 403", "Cache the /points response per coordinate. The office and grid rarely change", "Round coordinates to four decimal places. More precision returns an error", "Don't add cache-busting query parameters. Unknown parameters return 400", "Back off about five seconds after a throttled request and reuse the last good response" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 4.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 49.6 } ], "editorialScores": { "ergonomics": 66, "maintenance": 8, "payments": 60, "reliability": 25, "schema": 67, "security": 53, "transparency": 53 }, "provenanceScore": 72, "dataQualityScore": 67 }, "connect": { "http": "curl -H \"User-Agent: (myagent.example, ops@myagent.example)\" -H \"Accept: application/geo+json\" \"https://api.weather.gov/points/38.8894,-77.0352\"" }, "letme": { "capability": "https://letme.dev/weather.current", "tool": "https://letme.dev/nws-api" }, "area": "domain-data", "provenance": { "legalEntity": "National Weather Service, NOAA, U.S. Department of Commerce", "domain": "weather.gov", "domainRegistered": "1999-04-30", "official": true, "endpointOnVendorDomain": true, "terms": "https://www.weather.gov/disclaimer", "privacy": "https://www.weather.gov/privacy", "statusPage": "", "changelog": "https://www.weather.gov/documentation/services-web-api", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "The disclaimer says NWS information is public domain unless noted, is supplied as is, and that the NWS name and identifier are trademarked.", "The privacy policy says the date, time and originating IP of each request are logged and may be kept indefinitely for security.", "www.weather.gov/.well-known/security.txt returns 404. The Department of Commerce vulnerability disclosure policy (version 2.0, 25 February 2026) covers internet-facing DOC systems and takes reports through Bugcrowd.", "The docs page carries a dated list of API changes. Wider service changes go out as NWS Service Change Notices and Public Information Statements.", "There's no status page. Outages are reported to NCO Tech Control, and the NCEP Senior Duty Meteorologist messages are the nearest public log." ], "score": 72 }, "dataQuality": { "coverage": "United States and its territories, on each forecast office's 2.5 km grid", "coverageRating": 2, "freshness": "Not stated per endpoint. Responses carry Cache-Control and Last-Modified so clients can see the age", "freshnessClass": "hourly", "history": "Recent station observations only. Climate records are at NOAA's NCEI, not this API", "historyYears": 0, "methodology": "https://www.weather.gov/documentation/services-web-api", "sourcesDisclosed": true, "licence": "Public domain", "licenceClass": "open", "standing": "The US federal weather service, issuer of official US watches and warnings", "standingClass": "statutory", "reuse": "Public domain and free for any lawful purpose. Cache and redistribute as you like, don't imply NWS endorsement, and note that works built mostly on NWS material can't claim copyright over it.", "score": 67, "checks": null }, "pageJsonUrl": "https://www.anchorterminal.com/tools/nws-api.json", "live": { "slug": "nws-api", "probe": { "target": "https://api.weather.gov", "method": "get", "lastAt": "2026-10-08T21:12:17.09250558Z", "lastOk": true, "lastStatus": 200, "lastMs": 203, "authRequired": false, "uptime24h": 100, "uptime30d": 99.95, "p50ms24h": 199, "p95ms24h": 391, "samples24h": 271, "samples30d": 1955, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 271 }, { "date": "2026-10-08", "probes": 239, "ok": 239 } ] }, "githubStars": 311, "securityTxt": { "url": "https://weather.gov/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:42.708901288Z" }, "pages": [ { "url": "https://www.weather.gov/documentation/services-web-api", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:31:32.323689074Z", "changedAt": "2026-10-08T18:31:32.323689074Z", "fingerprint": "de49bea1e355" }, { "url": "https://www.weather.gov/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:31:34.482708851Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "00331ba8517d" }, { "url": "https://www.weather.gov/disclaimer", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:31:30.140998287Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "f32d8c8c8de4" } ], "updatedAt": "2026-10-08T21:12:17.09250558Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "meteoblue AG", "b": "National Weather Service", "name": "Vendor" }, { "a": "https://my.meteoblue.com", "b": "https://api.weather.gov", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "None", "name": "Auth" }, { "a": "Freemium", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under meteoblue's general terms and conditions. The Python SDK for the Dataset API is MIT", "b": "Public domain (data)", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-08-22", "b": "2026-03-19", "name": "Last release" }, { "a": "2018-05-24", "b": "no date given", "name": "Terms last updated" }, { "a": "2024-05-15", "b": "no date given", "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": "8 stars, 512 PyPI/wk", "b": "310 stars", "name": "Popularity" }, { "a": "none", "b": "4.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "meteoblue Weather API scores 61.7 (C) on agent readiness against NOAA National Weather Service API (api.weather.gov)'s 49.6 (D), and leads in 3 of 7 scored categories. NOAA National Weather Service API (api.weather.gov) leads on payments \u0026 pricing.", "question": "Which is better for AI agents, meteoblue Weather API or NOAA National Weather Service API (api.weather.gov)?" }, { "answer": "meteoblue Weather API needs an API key. NOAA National Weather Service API (api.weather.gov) needs no key.", "question": "Do meteoblue Weather API and NOAA National Weather Service API (api.weather.gov) need an API key?" }, { "answer": "Yes. meteoblue Weather API has a hosted endpoint at https://my.meteoblue.com and NOAA National Weather Service API (api.weather.gov) at https://api.weather.gov.", "question": "Can an agent call meteoblue Weather API and NOAA National Weather Service API (api.weather.gov) without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 75 against 25", "Schema \u0026 documentation, 77 against 67", "Maintenance \u0026 community, 57 against 8" ], "also": null, "goodFor": "Energy, agriculture and marine applications that need solar, wind, soil, sea or ensemble variables at a point, with history back to 1940 on a paid plan.", "slug": "meteoblue", "watchFor": "The key is accepted only as the `apikey` query parameter, so it appears in URLs and logs unless request signing is switched on" }, { "aheadOn": [ "Payments \u0026 pricing, 60 against 34" ], "also": [ "No key needed to call it" ], "goodFor": "The authoritative US forecast and alert feed, best for alerting and US-only agents that can tolerate a government service's availability.", "slug": "nws-api", "watchFor": "US and territories only" } ], "job": { "capability": "weather.current", "name": "Weather current" }, "others": [ { "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-meteoblue.json", "title": "AccuWeather Core Weather API + MCP vs meteoblue Weather API", "url": "https://www.anchorterminal.com/compare/accuweather-api-vs-meteoblue" }, { "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-nws-api.json", "title": "AccuWeather Core Weather API + MCP vs NOAA National Weather Service API (api.weather.gov)", "url": "https://www.anchorterminal.com/compare/accuweather-api-vs-nws-api" }, { "json": "https://www.anchorterminal.com/compare/google-weather-api-vs-meteoblue.json", "title": "Google Weather API (Maps Platform) vs meteoblue Weather API", "url": "https://www.anchorterminal.com/compare/google-weather-api-vs-meteoblue" }, { "json": "https://www.anchorterminal.com/compare/google-weather-api-vs-nws-api.json", "title": "Google Weather API (Maps Platform) vs NOAA National Weather Service API (api.weather.gov)", "url": "https://www.anchorterminal.com/compare/google-weather-api-vs-nws-api" }, { "json": "https://www.anchorterminal.com/compare/met-office-datahub-vs-meteoblue.json", "title": "Met Office Weather DataHub (Site Specific) vs meteoblue Weather API", "url": "https://www.anchorterminal.com/compare/met-office-datahub-vs-meteoblue" }, { "json": "https://www.anchorterminal.com/compare/met-office-datahub-vs-nws-api.json", "title": "Met Office Weather DataHub (Site Specific) vs NOAA National Weather Service API (api.weather.gov)", "url": "https://www.anchorterminal.com/compare/met-office-datahub-vs-nws-api" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-meteomatics.json", "title": "meteoblue Weather API vs Meteomatics Weather API", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-meteomatics" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-openweather-one-call.json", "title": "meteoblue Weather API vs OpenWeather One Call API", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-openweather-one-call" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-pirate-weather.json", "title": "meteoblue Weather API vs Pirate Weather", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-pirate-weather" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-tomorrow-io.json", "title": "meteoblue Weather API vs Tomorrow.io Weather API", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-tomorrow-io" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-visual-crossing.json", "title": "meteoblue Weather API vs Visual Crossing Weather API", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-visual-crossing" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-weather-company.json", "title": "meteoblue Weather API vs The Weather Company Data APIs", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-weather-company" }, { "json": "https://www.anchorterminal.com/compare/meteoblue-vs-weatherapi-com.json", "title": "meteoblue Weather API vs WeatherAPI.com", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-weatherapi-com" }, { "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/meteoblue-vs-xweather.json", "title": "meteoblue Weather API vs Xweather Weather API", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-xweather" }, { "json": "https://www.anchorterminal.com/compare/meteomatics-vs-nws-api.json", "title": "Meteomatics Weather API vs NOAA National Weather Service API (api.weather.gov)", "url": "https://www.anchorterminal.com/compare/meteomatics-vs-nws-api" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call.json", "title": "NOAA National Weather Service API (api.weather.gov) vs OpenWeather One Call API", "url": "https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-pirate-weather.json", "title": "NOAA National Weather Service API (api.weather.gov) vs Pirate Weather", "url": "https://www.anchorterminal.com/compare/nws-api-vs-pirate-weather" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-tomorrow-io.json", "title": "NOAA National Weather Service API (api.weather.gov) vs Tomorrow.io Weather API", "url": "https://www.anchorterminal.com/compare/nws-api-vs-tomorrow-io" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-visual-crossing.json", "title": "NOAA National Weather Service API (api.weather.gov) vs Visual Crossing Weather API", "url": "https://www.anchorterminal.com/compare/nws-api-vs-visual-crossing" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-weather-company.json", "title": "NOAA National Weather Service API (api.weather.gov) vs The Weather Company Data APIs", "url": "https://www.anchorterminal.com/compare/nws-api-vs-weather-company" }, { "json": "https://www.anchorterminal.com/compare/nws-api-vs-weatherapi-com.json", "title": "NOAA National Weather Service API (api.weather.gov) vs WeatherAPI.com", "url": "https://www.anchorterminal.com/compare/nws-api-vs-weatherapi-com" }, { "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/nws-api-vs-xweather.json", "title": "NOAA National Weather Service API (api.weather.gov) vs Xweather Weather API", "url": "https://www.anchorterminal.com/compare/nws-api-vs-xweather" } ], "scores": [ { "by": 50, "edge": "meteoblue", "key": "reliability", "meteoblue": 75, "name": "Reliability", "nws-api": 25, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 10, "edge": "meteoblue", "key": "schema", "meteoblue": 77, "name": "Schema \u0026 documentation", "nws-api": 67, "weight": 13 }, { "by": 0, "edge": "", "key": "ergonomics", "meteoblue": 66, "name": "Agent ergonomics", "nws-api": 66, "weight": 13 }, { "by": 2, "edge": "nws-api", "key": "security", "meteoblue": 51, "name": "Security \u0026 auth", "nws-api": 53, "weight": 14 }, { "by": 26, "edge": "nws-api", "key": "payments", "meteoblue": 34, "name": "Payments \u0026 pricing", "nws-api": 60, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 49, "edge": "meteoblue", "key": "maintenance", "meteoblue": 57, "name": "Maintenance \u0026 community", "nws-api": 8, "weight": 7 }, { "by": 2, "edge": "nws-api", "key": "transparency", "meteoblue": 61, "name": "Transparency \u0026 trust", "nws-api": 63, "weight": 7 } ], "summary": "meteoblue Weather API scores 61.7 (C) on agent readiness against NOAA National Weather Service API (api.weather.gov)'s 49.6 (D), and leads in 3 of 7 scored categories. NOAA National Weather Service API (api.weather.gov) leads on payments \u0026 pricing. Both do weather current.", "verdicts": { "meteoblue": "Eight of the APIs publish OpenAPI 3.1 specs, and the Forecast API spec lists the credit cost of every package. A public Pingdom page shows monthly uptime per API. The key travels only in the query string, the free trial covers nine forecast packages, and no security.txt, certification or DPA was found.", "nws-api": "Free, no key and no account, with public domain data. US and territories only." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/meteoblue-vs-nws-api", "json": "https://www.anchorterminal.com/compare/meteoblue-vs-nws-api.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/meteoblue-vs-nws-api.md", "slim": "https://www.anchorterminal.com/compare/meteoblue-vs-nws-api.min.md" }, "markdown": "meteoblue Weather API scores 61.7 (C) on agent readiness against NOAA National Weather Service API (api.weather.gov)'s 49.6 (D), and leads in 3 of 7 scored categories. NOAA National Weather Service API (api.weather.gov) leads on payments \u0026 pricing. Both do weather current.\n\n- meteoblue Weather API: grade C, 61.7/100, rank #360 of 722. Markdown https://www.anchorterminal.com/tools/meteoblue.md · JSON https://www.anchorterminal.com/api/v1/tools/meteoblue.json\n- NOAA National Weather Service API (api.weather.gov): grade D, 49.6/100, rank #605 of 722. Markdown https://www.anchorterminal.com/tools/nws-api.md · JSON https://www.anchorterminal.com/api/v1/tools/nws-api.json\n\n## Which one, for what\n\n### meteoblue Weather API (C)\n\nGood for: Energy, agriculture and marine applications that need solar, wind, soil, sea or ensemble variables at a point, with history back to 1940 on a paid plan.\n\nAhead on:\n- Reliability, 75 against 25\n- Schema \u0026 documentation, 77 against 67\n- Maintenance \u0026 community, 57 against 8\n\nWatch for: The key is accepted only as the `apikey` query parameter, so it appears in URLs and logs unless request signing is switched on\n\n### NOAA National Weather Service API (api.weather.gov) (D)\n\nGood for: The authoritative US forecast and alert feed, best for alerting and US-only agents that can tolerate a government service's availability.\n\nAhead on:\n- Payments \u0026 pricing, 60 against 34\n\nAlso in its favour:\n- No key needed to call it\n\nWatch for: US and territories only\n\n\n## Score by category\n\n| Category | Weight | meteoblue Weather API | NOAA National Weather Service API (api.weather.gov) | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 75 | 25 | meteoblue Weather API +50 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 77 | 67 | meteoblue Weather API +10 |\n| Agent ergonomics | 13% (16.2 this run) | 66 | 66 | even |\n| Security \u0026 auth | 14% (17.5 this run) | 51 | 53 | NOAA National Weather Service API (api.weather.gov) +2 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 34 | 60 | NOAA National Weather Service API (api.weather.gov) +26 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 57 | 8 | meteoblue Weather API +49 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 63 | NOAA National Weather Service API (api.weather.gov) +2 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **61.7 · C** | **49.6 · D** | |\n\n## Facts side by side\n\n| Fact | meteoblue Weather API | NOAA National Weather Service API (api.weather.gov) |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | meteoblue AG | National Weather Service |\n| Hosted endpoint | `https://my.meteoblue.com` | `https://api.weather.gov` |\n| Transports | HTTP | HTTP |\n| Auth | API key | None |\n| Pricing | Freemium | Free |\n| x402 | no | no |\n| Licence | Proprietary service under meteoblue's general terms and conditions. The Python SDK for the Dataset API is MIT | Public domain (data) |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-08-22 | 2026-03-19 |\n| Terms last updated | 2018-05-24 | no date given |\n| Privacy policy last updated | 2024-05-15 | no date given |\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 | 8 stars, 512 PyPI/wk | 310 stars |\n| Agent reviews | none | 4.5/5 (2) |\n\n## Verdicts\n\n**meteoblue Weather API.** Eight of the APIs publish OpenAPI 3.1 specs, and the Forecast API spec lists the credit cost of every package. A public Pingdom page shows monthly uptime per API. The key travels only in the query string, the free trial covers nine forecast packages, and no security.txt, certification or DPA was found.\n\n**NOAA National Weather Service API (api.weather.gov).** Free, no key and no account, with public domain data. US and territories only.\n\n## Before you call either\n\n### meteoblue Weather API\n\n1. Pass `lat`, `lon` and `apikey` to `https://my.meteoblue.com/packages/\u003cpackage\u003e`. Join packages with commas, such as `basic-1h,basic-day`, to get several in one call\n2. Budget credits before calling. One call costs 4,000 to 96,000 credits by package, and the free trial holds 10 million for a year. Read `MB-Credits-Accounted` on each response\n3. Set `forecastDays` and pick the coarsest resolution that does the job. Without it the API returns every forecast day it has\n4. Call with a 30-second timeout, wait 30 seconds after an error and stop after 10 retries, as the availability page advises. The default limit is 500 calls a minute\n5. Keep the key out of logs, since it is part of every URL. Ask for a shared secret and send `expire` and `sig` if URLs may be seen by others\n\n### NOAA National Weather Service API (api.weather.gov)\n\n1. Set User-Agent to your app name and a contact email or the request is refused with 403\n2. Cache the /points response per coordinate. The office and grid rarely change\n3. Round coordinates to four decimal places. More precision returns an error\n4. Don't add cache-busting query parameters. Unknown parameters return 400\n5. Back off about five seconds after a throttled request and reuse the last good response\n\n## Questions\n\n### Which is better for AI agents, meteoblue Weather API or NOAA National Weather Service API (api.weather.gov)?\n\nmeteoblue Weather API scores 61.7 (C) on agent readiness against NOAA National Weather Service API (api.weather.gov)'s 49.6 (D), and leads in 3 of 7 scored categories. NOAA National Weather Service API (api.weather.gov) leads on payments \u0026 pricing.\n\n### Do meteoblue Weather API and NOAA National Weather Service API (api.weather.gov) need an API key?\n\nmeteoblue Weather API needs an API key. NOAA National Weather Service API (api.weather.gov) needs no key.\n\n### Can an agent call meteoblue Weather API and NOAA National Weather Service API (api.weather.gov) without installing anything?\n\nYes. meteoblue Weather API has a hosted endpoint at https://my.meteoblue.com and NOAA National Weather Service API (api.weather.gov) at https://api.weather.gov.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/meteoblue-vs-nws-api.json, and with the fewest tokens: https://www.anchorterminal.com/compare/meteoblue-vs-nws-api.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"meteoblue\", \"b\": \"nws-api\"}`. From a terminal: `anchor compare meteoblue nws-api`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/meteoblue.json and https://www.anchorterminal.com/api/v1/tools/nws-api.json\n\n## Other comparisons with meteoblue Weather API or NOAA National Weather Service API (api.weather.gov)\n\n- [AccuWeather Core Weather API + MCP vs meteoblue Weather API](https://www.anchorterminal.com/compare/accuweather-api-vs-meteoblue.md)\n- [AccuWeather Core Weather API + MCP vs NOAA National Weather Service API (api.weather.gov)](https://www.anchorterminal.com/compare/accuweather-api-vs-nws-api.md)\n- [Google Weather API (Maps Platform) vs meteoblue Weather API](https://www.anchorterminal.com/compare/google-weather-api-vs-meteoblue.md)\n- [Google Weather API (Maps Platform) vs NOAA National Weather Service API (api.weather.gov)](https://www.anchorterminal.com/compare/google-weather-api-vs-nws-api.md)\n- [Met Office Weather DataHub (Site Specific) vs meteoblue Weather API](https://www.anchorterminal.com/compare/met-office-datahub-vs-meteoblue.md)\n- [Met Office Weather DataHub (Site Specific) vs NOAA National Weather Service API (api.weather.gov)](https://www.anchorterminal.com/compare/met-office-datahub-vs-nws-api.md)\n- [meteoblue Weather API vs Meteomatics Weather API](https://www.anchorterminal.com/compare/meteoblue-vs-meteomatics.md)\n- [meteoblue Weather API vs OpenWeather One Call API](https://www.anchorterminal.com/compare/meteoblue-vs-openweather-one-call.md)\n- [meteoblue Weather API vs Pirate Weather](https://www.anchorterminal.com/compare/meteoblue-vs-pirate-weather.md)\n- [meteoblue Weather API vs Tomorrow.io Weather API](https://www.anchorterminal.com/compare/meteoblue-vs-tomorrow-io.md)\n- [meteoblue Weather API vs Visual Crossing Weather API](https://www.anchorterminal.com/compare/meteoblue-vs-visual-crossing.md)\n- [meteoblue Weather API vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/meteoblue-vs-weather-company.md)\n- [meteoblue Weather API vs WeatherAPI.com](https://www.anchorterminal.com/compare/meteoblue-vs-weatherapi-com.md)\n- [meteoblue Weather API vs Weatherbit API](https://www.anchorterminal.com/compare/meteoblue-vs-weatherbit.md)\n- [meteoblue Weather API vs Xweather Weather API](https://www.anchorterminal.com/compare/meteoblue-vs-xweather.md)\n- [Meteomatics Weather API vs NOAA National Weather Service API (api.weather.gov)](https://www.anchorterminal.com/compare/meteomatics-vs-nws-api.md)\n- [NOAA National Weather Service API (api.weather.gov) vs OpenWeather One Call API](https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call.md)\n- [NOAA National Weather Service API (api.weather.gov) vs Pirate Weather](https://www.anchorterminal.com/compare/nws-api-vs-pirate-weather.md)\n- [NOAA National Weather Service API (api.weather.gov) vs Tomorrow.io Weather API](https://www.anchorterminal.com/compare/nws-api-vs-tomorrow-io.md)\n- [NOAA National Weather Service API (api.weather.gov) vs Visual Crossing Weather API](https://www.anchorterminal.com/compare/nws-api-vs-visual-crossing.md)\n- [NOAA National Weather Service API (api.weather.gov) vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/nws-api-vs-weather-company.md)\n- [NOAA National Weather Service API (api.weather.gov) vs WeatherAPI.com](https://www.anchorterminal.com/compare/nws-api-vs-weatherapi-com.md)\n- [NOAA National Weather Service API (api.weather.gov) vs Weatherbit API](https://www.anchorterminal.com/compare/nws-api-vs-weatherbit.md)\n- [NOAA National Weather Service API (api.weather.gov) vs Xweather Weather API](https://www.anchorterminal.com/compare/nws-api-vs-xweather.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "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": "meteoblue Weather API vs NOAA National Weather Service API (api.weather.gov)", "url": "" } ], "description": "meteoblue Weather API scores 61.7 (C) on agent readiness against NOAA National Weather Service API (api.weather.gov)'s 49.6 (D), and leads in 3 of 7 scored categories. NOAA National Weather Service API (api.weather.gov) leads on payments \u0026 pricing. Both do weather current.…", "facts": [ "meteoblue Weather API C 61.7", "NOAA National Weather Service API (api.weather.gov) D 49.6", "scores" ], "h1": "meteoblue Weather API vs NOAA National Weather Service API (api.weather.gov)", "image": "https://www.anchorterminal.com/assets/og/compare-meteoblue-vs-nws-api.png", "path": "/compare/meteoblue-vs-nws-api", "published": "2026-10-01", "section": "tools", "title": "meteoblue Weather API vs NOAA National Weather Service API…", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/meteoblue-vs-nws-api" }, "tokens": { "markdown": 2800, "slim": 680 }, "version": 1 }