{ "data": { "a": { "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": 49.9, "grade": "D", "agentReady": false, "rank": 364, "ranked": true, "rankOf": 452, "categoryRank": 6, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 66, "maintenance": 8, "payments": 60, "reliability": 25, "schema": 67, "security": 53, "transparency": 67 }, "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.", "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": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 49.9 } ], "editorialScores": { "ergonomics": 66, "maintenance": 8, "payments": 60, "reliability": 25, "schema": 67, "security": 53, "transparency": 53 }, "provenanceScore": 80, "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": 80 }, "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": "2026-10-04T23:32:51.219479816Z", "lastOk": true, "lastStatus": 200, "lastMs": 134, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 155, "p95ms24h": 334, "samples24h": 272, "samples30d": 895, "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": 267, "ok": 267 } ] }, "githubStars": 311, "securityTxt": { "url": "https://weather.gov/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:49.532451334Z" }, "pages": [ { "url": "https://www.weather.gov/documentation/services-web-api", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:52:52.813447699Z", "changedAt": "2026-10-03T15:40:43.869263793Z", "fingerprint": "ebbe762baf4c" }, { "url": "https://www.weather.gov/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:52:54.951244772Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "00331ba8517d" }, { "url": "https://www.weather.gov/disclaimer", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:52:50.483017146Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "f32d8c8c8de4" } ], "updatedAt": "2026-10-04T23:32:51.219479816Z" } }, "b": { "slug": "openweather-one-call", "name": "OpenWeather One Call API", "vendor": "OpenWeather", "vendorUrl": "https://openweathermap.org", "kind": "http-api", "category": "weather", "summary": "Current weather, minute, hourly and daily forecasts, government alerts and history back to 1979 in one call, billed per call with 1,000 free a day.", "url": "https://www.anchorterminal.com/tools/openweather-one-call", "markdownUrl": "https://www.anchorterminal.com/tools/openweather-one-call.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/openweather-one-call.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/openweather-one-call.json", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.openweathermap.org/data/3.0/onecall", "packages": [], "auth": "api-key", "authNotes": "The REST API takes the key as the appid query parameter, so it lands in request URLs and logs. The agent lane at agents.openweathermap.org issues a separate data key (bf_live_…) sent as a Bearer header to data.openweathermap.org and to the MCP server. The One Call by Call subscription has to be activated on the account before the key works on 3.0 or 4.0.", "pricing": "freemium", "pricingNotes": "One Call by Call. The first 1,000 calls a day are free, then $0.0015 a call, with a default daily cap of 2,000 you can raise or lower in the account (https://openweathermap.org/price). Charges are summed and billed at the end of the subscription month, and subscribing means filling in a billing form (https://openweathermap.org/faq). The agent lane gives every account 1,000 One Call credits a day, replaced each night UTC, then bills $0.001 a successful call from prepaid credit. Top-ups are card only, from $10, and a person completes them on the payment page (https://agents.openweathermap.org/llms.txt). The wider subscription plans (Startup $40, Developer $180, Professional $470, Expert $1,200 a month) cover the older per-product APIs, not One Call.", "priceSummary": "$1.50 / 1k req", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": 6, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://openweathermap.org/api/one-call-3", "llmsTxt": "https://openweathermap.org/llms.txt", "registryName": "org.openweathermap/agents", "capabilities": [ "weather.current", "weather.forecast", "weather.historical", "weather.alerts", "data.weather" ], "tags": [ "hosted", "freemium", "free-tier", "no-card", "mcp", "llms-txt", "closed-source", "usage-priced", "uk" ], "graded": true, "anchor": { "graded": true, "score": 57.4, "grade": "C", "agentReady": false, "rank": 294, "ranked": true, "rankOf": 452, "categoryRank": 5, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 73, "maintenance": 60, "payments": 60, "reliability": 45, "schema": 68, "security": 42, "transparency": 62 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "1,000 free calls a day, then $0.0015 a call, or $0.001 on the agent lane. The main API takes the key only as the appid query parameter.", "strengths": [ "1,000 free calls a day, then $0.0015 a call, or $0.001 on the agent lane", "An agent can sign up with one POST and an email, and failed calls aren't billed on that lane", "Official hosted MCP server in the registry as org.openweathermap/agents", "History back to 1979-01-01 from the same API as the forecast", "llms.txt, a Markdown agent guide and an error dictionary with the reaction for each code" ], "weaknesses": [ "The main API takes the key only as the appid query parameter", "3.0 is marked deprecated with no shutdown date, and 4.0 needs new paths", "No status page, public changelog or OpenAPI for the main API", "No security.txt or disclosure policy found", "Agent top-ups are card only and need a person, and the lane is run by Extreme Electronics Ltd" ], "agentNotes": [ "Sign up on the agent lane with POST https://agents.openweathermap.org/v1/accounts and keep the data key. It's shown once", "Check GET https://data.openweathermap.org/account/balance for credit. No data response carries a cost or balance", "On the main API, activate One Call by Call and set the daily cap in Billing plans before the first loop", "Pass units=metric. The default is Kelvin", "Use exclude=minutely,alerts on 3.0, or the 4.0 timeline step you need, to shrink responses" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 57.4 } ], "editorialScores": { "ergonomics": 73, "maintenance": 60, "payments": 60, "reliability": 45, "schema": 68, "security": 42, "transparency": 53 }, "provenanceScore": 70, "dataQualityScore": 52 }, "connect": { "http": "curl \"https://api.openweathermap.org/data/3.0/onecall?lat=51.51\u0026lon=-0.13\u0026exclude=minutely\u0026units=metric\u0026appid=$OPENWEATHER_API_KEY\"", "claudeCode": "claude mcp add --transport http openweather https://mcp.openweathermap.org/mcp --header \"Authorization: Bearer $OPENWEATHER_DATA_KEY\"", "config": { "mcpServers": { "openweather": { "headers": { "Authorization": "Bearer ${OPENWEATHER_DATA_KEY}" }, "type": "http", "url": "https://mcp.openweathermap.org/mcp" } } } }, "letme": { "capability": "https://letme.dev/weather.current", "tool": "https://letme.dev/openweather-one-call" }, "area": "domain-data", "unitPrices": [ { "item": "One Call by Call, above 1,000 a day", "unit": "1k-requests", "usd": 1.5, "note": "$0.0015 a call, first 1,000 a day free" }, { "item": "Agent lane, prepaid credit", "unit": "1k-requests", "usd": 1, "note": "1 credit = $0.001 a successful call, 1,000 free credits a day, $10 minimum top-up" } ], "provenance": { "legalEntity": "OpenWeather Ltd", "domain": "openweathermap.org", "domainRegistered": "2012-04-20", "endpointOnVendorDomain": true, "terms": "https://openweather.co.uk/storage/app/media/Terms/Openweather_terms_and_conditions_of_sale.pdf", "privacy": "https://openweather.co.uk/privacy-policy", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "The terms of sale and privacy policy sit on openweather.co.uk and name OpenWeather Ltd at 30 St Mary Axe, London EC3A 8BF, under the law of England and Wales.", "The agent lane is operated by Extreme Electronics Ltd, trading as The Bot Forum, with its own versioned terms at agents.openweathermap.org/tos.", "openweathermap.org/.well-known/security.txt returns 404.", "The company's GitHub organisation holds a storage engine (Deker) and an awesome list, no SDK or MCP source." ], "score": 70 }, "dataQuality": { "coverage": "Global, any coordinate, from OpenWeather's own model blend", "coverageRating": 4, "freshness": "Not stated for One Call by Call. The subscription table lists updates every 2 hours on Startup, hourly on Developer and every 10 minutes on Professional and Expert", "freshnessClass": "hourly", "history": "Timemachine from 1979-01-01", "historyYears": 47, "methodology": "", "sourcesDisclosed": false, "licence": "CC BY-SA 4.0 and ODbL per the terms of sale, with attribution on lower plans", "licenceClass": "clear", "standing": "", "standingClass": "none", "reuse": "The terms of sale put the data under CC BY-SA 4.0 and ODbL, so caching and redistribution are allowed with attribution and share-alike. The FAQ adds a required credit line, link and logo for Free to Professional plans.", "score": 52, "checks": null }, "pageJsonUrl": "https://www.anchorterminal.com/tools/openweather-one-call.json", "live": { "slug": "openweather-one-call", "probe": { "target": "https://api.openweathermap.org/data/3.0/onecall", "method": "get", "lastAt": "2026-10-04T23:32:51.837006704Z", "lastOk": true, "lastStatus": 401, "lastMs": 86, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 86, "p95ms24h": 121, "samples24h": 272, "samples30d": 895, "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": 267, "ok": 267 } ] }, "versions": [ { "registry": "mcp-registry", "name": "org.openweathermap/agents", "version": "0.3.0", "seenAt": "2026-10-03T23:29:28.630222764Z" } ], "securityTxt": { "url": "https://openweathermap.org/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:16:02.706673842Z" }, "llmsTxt": { "url": "https://openweathermap.org/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:05.491726758Z" }, "domain": { "domain": "openweathermap.org", "registered": "2012-04-20", "source": "https://rdap.publicinterestregistry.org/rdap/domain/openweathermap.org", "checkedAt": "2026-10-04T13:10:39.925519614Z" }, "pages": [ { "url": "https://openweathermap.org/price", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:46:31.298624589Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "688045af7eab" }, { "url": "https://openweather.co.uk/privacy-policy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:46:29.285242667Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "763a8b8a9767" } ], "updatedAt": "2026-10-04T23:32:51.837006704Z" } }, "summary": "OpenWeather One Call API has a score of 57.4 (C) against NOAA National Weather Service API (api.weather.gov)'s 49.9 (D). Both do weather current. The largest gap is maintenance \u0026 community, 52 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call", "json": "https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call.md", "slim": "https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call.min.md" }, "markdown": "OpenWeather One Call API has a score of 57.4 (C) against NOAA National Weather Service API (api.weather.gov)'s 49.9 (D). Both do weather current. The largest gap is maintenance \u0026 community, 52 points.\n\n- NOAA National Weather Service API (api.weather.gov): grade D, 49.9/100, rank #364 of 452. Markdown https://www.anchorterminal.com/tools/nws-api.md · JSON https://www.anchorterminal.com/api/v1/tools/nws-api.json\n- OpenWeather One Call API: grade C, 57.4/100, rank #294 of 452. Markdown https://www.anchorterminal.com/tools/openweather-one-call.md · JSON https://www.anchorterminal.com/api/v1/tools/openweather-one-call.json\n\n## Which one, for what\n\nPick NOAA National Weather Service API (api.weather.gov) for security \u0026 auth (+11), transparency \u0026 trust (+5).\n\nPick OpenWeather One Call API for reliability (+20), agent ergonomics (+7), maintenance \u0026 community (+52).\n\n## Score by category\n\n| Category | Weight | NOAA National Weather Service API (api.weather.gov) | OpenWeather One Call API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 25 | 45 | OpenWeather One Call API +20 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 67 | 68 | OpenWeather One Call API +1 |\n| Agent ergonomics | 13% (16.2 this run) | 66 | 73 | OpenWeather One Call API +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 53 | 42 | NOAA National Weather Service API (api.weather.gov) +11 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 60 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 8 | 60 | OpenWeather One Call API +52 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 67 | 62 | NOAA National Weather Service API (api.weather.gov) +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **49.9 · D** | **57.4 · C** | |\n\n## Facts side by side\n\n| Fact | NOAA National Weather Service API (api.weather.gov) | OpenWeather One Call API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | National Weather Service | OpenWeather |\n| Hosted endpoint | `https://api.weather.gov` | `https://api.openweathermap.org/data/3.0/onecall` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | None | API key |\n| Pricing | Free | Freemium |\n| x402 | no | no |\n| Licence | Public domain (data) | none |\n| Tools exposed | none | 6 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| MCP registry | not listed | `org.openweathermap/agents` |\n| Last release | 2026-03-19 | none |\n| Popularity | 310 stars | none |\n| Agent reviews | 4.5/5 (2) | 3.5/5 (2) |\n\n## Verdicts\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**OpenWeather One Call API.** 1,000 free calls a day, then $0.0015 a call, or $0.001 on the agent lane. The main API takes the key only as the appid query parameter.\n\n## Before you call either\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### OpenWeather One Call API\n\n1. Sign up on the agent lane with POST https://agents.openweathermap.org/v1/accounts and keep the data key. It's shown once\n2. Check GET https://data.openweathermap.org/account/balance for credit. No data response carries a cost or balance\n3. On the main API, activate One Call by Call and set the daily cap in Billing plans before the first loop\n4. Pass units=metric. The default is Kelvin\n5. Use exclude=minutely,alerts on 3.0, or the 4.0 timeline step you need, to shrink responses\n\n## Other comparisons with NOAA National Weather Service API (api.weather.gov) or OpenWeather One Call API\n\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- [AccuWeather Core Weather API + MCP vs OpenWeather One Call API](https://www.anchorterminal.com/compare/accuweather-api-vs-openweather-one-call.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- [Google Weather API (Maps Platform) vs OpenWeather One Call API](https://www.anchorterminal.com/compare/google-weather-api-vs-openweather-one-call.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- [Met Office Weather DataHub (Site Specific) vs OpenWeather One Call API](https://www.anchorterminal.com/compare/met-office-datahub-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 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 WeatherAPI.com](https://www.anchorterminal.com/compare/nws-api-vs-weatherapi-com.md)\n- [OpenWeather One Call API vs Pirate Weather](https://www.anchorterminal.com/compare/openweather-one-call-vs-pirate-weather.md)\n- [OpenWeather One Call API vs Visual Crossing Weather API](https://www.anchorterminal.com/compare/openweather-one-call-vs-visual-crossing.md)\n- [OpenWeather One Call API vs WeatherAPI.com](https://www.anchorterminal.com/compare/openweather-one-call-vs-weatherapi-com.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "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": "NOAA National Weather Service API (api.weather.gov) vs OpenWeather One Call API", "url": "" } ], "description": "OpenWeather One Call API has a score of 57.4 (C) against NOAA National Weather Service API (api.weather.gov)'s 49.9 (D). Both do weather current. The largest gap is maintenance \u0026 community, 52 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "NOAA National Weather Service API (api.weather.gov) D 49.9", "OpenWeather One Call API C 57.4", "scores" ], "h1": "NOAA National Weather Service API (api.weather.gov) vs OpenWeather One Call API", "image": "https://www.anchorterminal.com/assets/og/compare-nws-api-vs-openweather-one-call.png", "path": "/compare/nws-api-vs-openweather-one-call", "published": "2026-10-01", "section": "tools", "title": "NOAA National Weather Service API (api.weather.gov) vs OpenWeather…", "toc": null, "updated": "2026-10-04", "url": "https://www.anchorterminal.com/compare/nws-api-vs-openweather-one-call" }, "tokens": { "markdown": 1700, "slim": 380 }, "version": 1 }