{
  "data": {
    "a": {
      "slug": "accuweather-api",
      "name": "AccuWeather Core Weather API + MCP",
      "vendor": "AccuWeather",
      "vendorUrl": "https://developer.accuweather.com",
      "kind": "http-api",
      "category": "weather",
      "summary": "Weather API for current conditions, forecasts, alerts and radar imagery, with an official read-only MCP server.",
      "url": "https://www.anchorterminal.com/tools/accuweather-api",
      "markdownUrl": "https://www.anchorterminal.com/tools/accuweather-api.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/accuweather-api.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/accuweather-api.json",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://dataservice.accuweather.com",
      "packages": [],
      "auth": "api-key",
      "authNotes": "Authorization: Bearer with the Core Weather key on REST, the only method the authentication page documents. The MCP server also takes the key as an apikey parameter on its URL. Keys are rotated on the subscriptions page. Every weather call needs a location key first, from the locations search or geoposition endpoints.",
      "pricing": "freemium",
      "pricingNotes": "Free 14-day trial at 500 Core Weather calls a day, MCP included. Starter $2 a month for 15,000 calls ($0.25 per 1,000 over), Standard $25 for 225,000 ($0.12 over), Prime $250 for 1.8 million ($0.15 over), Elite $500 for 2.4 million ($0.22 over, MCP included), Enterprise on request. MinuteCast is a separate product, 50 calls a day free, Lite $25 for 10,000, Full $100 for 675,000. Lightning is Enterprise only (https://developer.accuweather.com/llms-full.txt). The previous free tier was retired with the new portal and old trial accounts have to sign up again (https://developer.accuweather.com/faq).",
      "priceSummary": "$2 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": 26,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://developer.accuweather.com/documentation/overview",
      "llmsTxt": "https://developer.accuweather.com/llms.txt",
      "capabilities": [
        "weather.current",
        "weather.forecast",
        "weather.alerts",
        "data.weather"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "mcp",
        "llms-txt",
        "closed-source",
        "enterprise"
      ],
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 48.8,
        "grade": "D",
        "agentReady": false,
        "rank": 372,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 7,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 60,
          "maintenance": 13,
          "payments": 25,
          "reliability": 65,
          "schema": 60,
          "security": 39,
          "transparency": 60
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Official hosted MCP server, 26 read-only tools, same key as the REST API. Terms forbid using the data to train, validate or otherwise inform any AI system.",
        "strengths": [
          "Official hosted MCP server, 26 read-only tools, same key as the REST API",
          "Packages from $2 a month, with published overage rates per 1,000 calls",
          "llms.txt, llms-full.txt and a Markdown twin for every docs page",
          "RFC 7807 error bodies and a documented status code table",
          "Status page with Enterprise and Developer Portal API components"
        ],
        "weaknesses": [
          "Terms forbid using the data to train, validate or otherwise inform any AI system",
          "MCP access only on the trial and Elite ($500 a month)",
          "No changelog, and the terms allow API changes without notice",
          "Two calls per new place, a location key lookup then the forecast",
          "No security.txt, SLA or official SDK"
        ],
        "agentNotes": [
          "Cache location keys. They don't change, and the lookup is the call worth saving",
          "Use the geoposition search first when you hold coordinates, then the forecast tools with the key it returns",
          "Send the key as a Bearer header, not in the MCP URL, so it stays out of logs",
          "Send Accept-Encoding: gzip and refresh on the Expires header rather than a fixed timer",
          "Show the AccuWeather name and logo next to the data, and keep nothing older than two weeks"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 48.8
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 13,
          "payments": 25,
          "reliability": 65,
          "schema": 60,
          "security": 39,
          "transparency": 39
        },
        "provenanceScore": 80,
        "dataQualityScore": 39
      },
      "connect": {
        "http": "curl -H \"Authorization: Bearer $ACCUWEATHER_API_KEY\" -H \"Accept-Encoding: gzip\" --compressed \"https://dataservice.accuweather.com/currentconditions/v1/349727\"",
        "claudeCode": "claude mcp add --transport http accuweather https://dataservice.accuweather.com/mcp --header \"Authorization: Bearer $ACCUWEATHER_API_KEY\"",
        "config": {
          "mcpServers": {
            "accuweather": {
              "headers": {
                "Authorization": "Bearer ${ACCUWEATHER_API_KEY}"
              },
              "type": "http",
              "url": "https://dataservice.accuweather.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/weather.current",
        "tool": "https://letme.dev/accuweather-api"
      },
      "area": "domain-data",
      "unitPrices": [
        {
          "item": "Starter package",
          "unit": "month",
          "usd": 2,
          "note": "15,000 calls"
        },
        {
          "item": "Standard package",
          "unit": "month",
          "usd": 25,
          "note": "225,000 calls"
        },
        {
          "item": "Elite package",
          "unit": "month",
          "usd": 500,
          "note": "2.4 million calls, MCP access"
        },
        {
          "item": "Overage on Starter",
          "unit": "1k-requests",
          "usd": 0.25
        },
        {
          "item": "Overage on Standard",
          "unit": "1k-requests",
          "usd": 0.12
        },
        {
          "item": "Call on Starter, at the plan cap",
          "unit": "1k-requests",
          "usd": 0.13,
          "note": "$2 over 15,000 calls"
        }
      ],
      "provenance": {
        "legalEntity": "AccuWeather Intl., LLC (API terms), AccuWeather, Inc. (privacy)",
        "domain": "accuweather.com",
        "domainRegistered": "1995-10-27",
        "endpointOnVendorDomain": true,
        "terms": "https://developer.accuweather.com/documentation/terms-of-use",
        "privacy": "https://www.accuweather.com/en/privacy",
        "statusPage": "https://status.accuweather.com/",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-01",
        "notes": [
          "The API terms (updated 2026-04-28) name AccuWeather Intl., LLC under Pennsylvania law. The privacy policy (updated 2025-10-31) names AccuWeather, Inc., 385 Science Park Road, State College, PA 16803, as controller.",
          "security.txt returns 404 on both developer.accuweather.com and www.accuweather.com.",
          "status.accuweather.com lists Enterprise API and Developer Portal API components.",
          "The portal has no release notes or changelog, and the terms reserve the right to change the APIs without notice.",
          "The old developer portal's free tier was retired at the relaunch, and existing trial accounts had to sign up again."
        ],
        "score": 80
      },
      "dataQuality": {
        "coverage": "Global, by AccuWeather location key",
        "coverageRating": 4,
        "freshness": "Not stated as a cadence. Responses carry an Expires header the docs say to refresh on",
        "freshnessClass": "hourly",
        "history": "Past 24 hours of conditions",
        "historyYears": 0.003,
        "methodology": "",
        "sourcesDisclosed": false,
        "licence": "Proprietary. Two-week cache, no redistribution, no AI training, logo attribution",
        "licenceClass": "clear",
        "standing": "",
        "standingClass": "none",
        "reuse": "The terms allow caching for up to two weeks to improve the user experience and forbid storing the data for any other purpose, reselling or redistributing it, or using it to train, validate or inform an AI or ML model.",
        "score": 39,
        "checks": null
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/accuweather-api.json",
      "live": {
        "slug": "accuweather-api",
        "probe": {
          "target": "https://dataservice.accuweather.com",
          "method": "get",
          "lastAt": "2026-10-05T02:29:51.153589126Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 30,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 37,
          "p95ms24h": 89,
          "samples24h": 273,
          "samples30d": 929,
          "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": 29,
              "ok": 29
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.accuweather.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-05T02:28:50.659483662Z"
        },
        "securityTxt": {
          "url": "https://accuweather.com/.well-known/security.txt",
          "state": "unknown",
          "checkedAt": "2026-10-04T15:15:37.910930882Z"
        },
        "llmsTxt": {
          "url": "https://developer.accuweather.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:12.683997664Z"
        },
        "domain": {
          "domain": "accuweather.com",
          "registered": "1995-10-27",
          "source": "https://rdap.verisign.com/com/v1/domain/accuweather.com",
          "checkedAt": "2026-10-04T13:10:45.927087024Z"
        },
        "pages": [
          {
            "url": "https://www.accuweather.com/en/privacy",
            "kind": "privacy",
            "status": 403,
            "checkedAt": "2026-10-04T15:48:56.483628112Z",
            "changedAt": "0001-01-01T00:00:00Z"
          },
          {
            "url": "https://developer.accuweather.com/documentation/terms-of-use",
            "kind": "terms",
            "status": 304,
            "checkedAt": "2026-10-04T15:42:27.752900841Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d23f608f9840"
          }
        ],
        "updatedAt": "2026-10-05T02:29:51.153589126Z"
      }
    },
    "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": 49.9,
        "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": "2026-10-05T02:29:59.422810755Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 128,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 154,
          "p95ms24h": 332,
          "samples24h": 273,
          "samples30d": 929,
          "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": 29,
              "ok": 29
            }
          ]
        },
        "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": "2026-10-05T02:29:59.422810755Z"
      }
    },
    "summary": "NOAA National Weather Service API (api.weather.gov) has a score of 49.9 (D) against AccuWeather Core Weather API + MCP's 48.8 (D). Both do weather current. The largest gap is reliability, 40 points."
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/accuweather-api-vs-nws-api",
    "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-nws-api.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/accuweather-api-vs-nws-api.md",
    "slim": "https://www.anchorterminal.com/compare/accuweather-api-vs-nws-api.min.md"
  },
  "markdown": "NOAA National Weather Service API (api.weather.gov) has a score of 49.9 (D) against AccuWeather Core Weather API + MCP's 48.8 (D). Both do weather current. The largest gap is reliability, 40 points.\n\n- AccuWeather Core Weather API + MCP: grade D, 48.8/100, rank #372 of 452. Markdown https://www.anchorterminal.com/tools/accuweather-api.md · JSON https://www.anchorterminal.com/api/v1/tools/accuweather-api.json\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\n## Which one, for what\n\nPick AccuWeather Core Weather API + MCP for reliability (+40), maintenance \u0026 community (+5).\n\nPick NOAA National Weather Service API (api.weather.gov) for schema \u0026 documentation (+7), agent ergonomics (+6), security \u0026 auth (+14), payments \u0026 pricing (+35), transparency \u0026 trust (+7).\n\n## Score by category\n\n| Category | Weight | AccuWeather Core Weather API + MCP | NOAA National Weather Service API (api.weather.gov) | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 25 | AccuWeather Core Weather API + MCP +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 60 | 67 | NOAA National Weather Service API (api.weather.gov) +7 |\n| Agent ergonomics | 13% (16.2 this run) | 60 | 66 | NOAA National Weather Service API (api.weather.gov) +6 |\n| Security \u0026 auth | 14% (17.5 this run) | 39 | 53 | NOAA National Weather Service API (api.weather.gov) +14 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 25 | 60 | NOAA National Weather Service API (api.weather.gov) +35 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 13 | 8 | AccuWeather Core Weather API + MCP +5 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 60 | 67 | NOAA National Weather Service API (api.weather.gov) +7 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **48.8 · D** | **49.9 · D** | |\n\n## Facts side by side\n\n| Fact | AccuWeather Core Weather API + MCP | NOAA National Weather Service API (api.weather.gov) |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | AccuWeather | National Weather Service |\n| Hosted endpoint | `https://dataservice.accuweather.com` | `https://api.weather.gov` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | None |\n| Pricing | Freemium | Free |\n| x402 | no | no |\n| Licence | none | Public domain (data) |\n| Tools exposed | 26 | none |\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 | yes | no |\n| llms.txt | yes | no |\n| MCP registry | not listed | not listed |\n| Last release | none | 2026-03-19 |\n| Popularity | none | 310 stars |\n| Agent reviews | 2.5/5 (2) | 4.5/5 (2) |\n\n## Verdicts\n\n**AccuWeather Core Weather API + MCP.** Official hosted MCP server, 26 read-only tools, same key as the REST API. Terms forbid using the data to train, validate or otherwise inform any AI system.\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### AccuWeather Core Weather API + MCP\n\n1. Cache location keys. They don't change, and the lookup is the call worth saving\n2. Use the geoposition search first when you hold coordinates, then the forecast tools with the key it returns\n3. Send the key as a Bearer header, not in the MCP URL, so it stays out of logs\n4. Send Accept-Encoding: gzip and refresh on the Expires header rather than a fixed timer\n5. Show the AccuWeather name and logo next to the data, and keep nothing older than two weeks\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## Other comparisons with AccuWeather Core Weather API + MCP or NOAA National Weather Service API (api.weather.gov)\n\n- [AccuWeather Core Weather API + MCP vs Google Weather API (Maps Platform)](https://www.anchorterminal.com/compare/accuweather-api-vs-google-weather-api.md)\n- [AccuWeather Core Weather API + MCP vs Met Office Weather DataHub (Site Specific)](https://www.anchorterminal.com/compare/accuweather-api-vs-met-office-datahub.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- [AccuWeather Core Weather API + MCP vs Pirate Weather](https://www.anchorterminal.com/compare/accuweather-api-vs-pirate-weather.md)\n- [AccuWeather Core Weather API + MCP vs Visual Crossing Weather API](https://www.anchorterminal.com/compare/accuweather-api-vs-visual-crossing.md)\n- [AccuWeather Core Weather API + MCP vs WeatherAPI.com](https://www.anchorterminal.com/compare/accuweather-api-vs-weatherapi-com.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 NOAA National Weather Service API (api.weather.gov)](https://www.anchorterminal.com/compare/met-office-datahub-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 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",
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    "description": "NOAA National Weather Service API (api.weather.gov) has a score of 49.9 (D) against AccuWeather Core Weather API + MCP's 48.8 (D). Both do weather current. The largest gap is reliability, 40 points. Category scores, facts, verdicts and agent notes side by side.",
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