{
  "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": "2026-10-05T04:05:22.683366545Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 61,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 37,
          "p95ms24h": 89,
          "samples24h": 273,
          "samples30d": 947,
          "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": 47,
              "ok": 47
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.accuweather.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-05T04:00:26.183341865Z"
        },
        "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": "2026-10-05T04:05:22.683366545Z"
      }
    },
    "b": {
      "slug": "weatherapi-com",
      "name": "WeatherAPI.com",
      "vendor": "WeatherAPI.com (Zoomash Ltd)",
      "vendorUrl": "https://www.weatherapi.com",
      "kind": "http-api",
      "category": "weather",
      "summary": "Weather API for current conditions, forecasts, history, marine data, alerts and air quality, queried by location.",
      "url": "https://www.anchorterminal.com/tools/weatherapi-com",
      "markdownUrl": "https://www.anchorterminal.com/tools/weatherapi-com.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/weatherapi-com.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/weatherapi-com.json",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.weatherapi.com/v1",
      "packages": [],
      "auth": "api-key",
      "authNotes": "The key goes in the key query parameter on every request. The terms tie one key to one application.",
      "pricing": "freemium",
      "pricingNotes": "Free at 100,000 calls a month with a 3-day forecast and 1 day of history, no card. Starter $7 a month ($75 a year) for 3 million calls, 7-day forecast and 7 days of history. Pro+ $25 ($270 a year) for 5 million calls, 14-day forecast, 365 days of history, marine with tides and bulk requests. Business $65 ($702 a year) for 10 million calls, history back to 2010-01-01 and 99.9 per cent uptime. Enterprise on request with unlimited calls. Paid plans start with a 14-day free trial (https://www.weatherapi.com/pricing.aspx).",
      "priceSummary": "$7 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://www.weatherapi.com/docs/",
      "llmsTxt": "https://www.weatherapi.com/llms.txt",
      "openapi": "https://www.weatherapi.com/openapi.json",
      "capabilities": [
        "weather.current",
        "weather.forecast",
        "weather.historical",
        "weather.alerts",
        "weather.marine",
        "data.weather"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "no-card",
        "closed-source",
        "uk"
      ],
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 65.8,
        "grade": "B",
        "agentReady": false,
        "rank": 169,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 3,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 80,
          "maintenance": 45,
          "payments": 30,
          "reliability": 90,
          "schema": 89,
          "security": 37,
          "transparency": 70
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "3 million calls for $7 a month, and 100,000 a month free with no card. Key only in the query string, and no security.txt.",
        "strengths": [
          "3 million calls for $7 a month, and 100,000 a month free with no card",
          "OpenAPI 3.1 spec with structured errors, plus llms.txt",
          "Field filters (current_fields, day_fields, hour_fields) to trim responses",
          "Status page with no incidents listed, and 99.9 per cent with service credits for High Volume customers",
          "12 months' written notice before an API deprecation, in the terms"
        ],
        "weaknesses": [
          "Key only in the query string, and no security.txt",
          "Privacy policy undated, with template placeholders and transfers to Russia and China",
          "SDKs for Node.js, Java, PHP and Go untouched since 2020 and 2021",
          "No full list of data sources or models",
          "Caching limited to 60 minutes for current and 24 hours for forecast"
        ],
        "agentNotes": [
          "Pass current_fields, day_fields or hour_fields to cut the response to what you need",
          "Treat a 403 with error code 2007 as the monthly quota, not a bad key. There's no 429",
          "Reuse the id from search.json (q=id:NNN) to avoid ambiguous city names",
          "Cache history freely, current for under an hour and forecasts for under a day, to stay inside the terms",
          "Use https://api.weatherapi.com/v1. The docs still show an http:// base URL"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 65.8
          }
        ],
        "editorialScores": {
          "ergonomics": 80,
          "maintenance": 45,
          "payments": 30,
          "reliability": 90,
          "schema": 89,
          "security": 37,
          "transparency": 49
        },
        "provenanceScore": 90,
        "dataQualityScore": 49
      },
      "connect": {
        "http": "curl \"https://api.weatherapi.com/v1/forecast.json?key=$WEATHERAPI_KEY\u0026q=51.51,-0.13\u0026days=3\u0026aqi=no\u0026alerts=no\""
      },
      "letme": {
        "capability": "https://letme.dev/weather.current",
        "tool": "https://letme.dev/weatherapi-com"
      },
      "area": "domain-data",
      "unitPrices": [
        {
          "item": "Starter plan",
          "unit": "month",
          "usd": 7,
          "note": "3 million calls, $75 a year"
        },
        {
          "item": "Pro+ plan",
          "unit": "month",
          "usd": 25,
          "note": "5 million calls, $270 a year"
        },
        {
          "item": "Business plan",
          "unit": "month",
          "usd": 65,
          "note": "10 million calls, $702 a year"
        },
        {
          "item": "Call on Starter, at the plan cap",
          "unit": "1k-requests",
          "usd": 0.0023,
          "note": "$7 over 3 million calls"
        },
        {
          "item": "Call on Business, at the plan cap",
          "unit": "1k-requests",
          "usd": 0.0065,
          "note": "$65 over 10 million calls"
        }
      ],
      "provenance": {
        "legalEntity": "Zoomash Ltd",
        "domain": "weatherapi.com",
        "domainRegistered": "2014-11-29",
        "endpointOnVendorDomain": true,
        "terms": "https://www.weatherapi.com/terms.aspx",
        "privacy": "https://www.weatherapi.com/privacy.aspx",
        "statusPage": "https://status.weatherapi.com/",
        "changelog": "https://www.weatherapi.com/api-changelog.html",
        "securityTxt": "none",
        "checked": "2026-10-01",
        "notes": [
          "The terms name Zoomash Ltd under the law of England and Wales but give no registered address or company number, and the privacy policy names no entity beyond WeatherAPI.com.",
          "The privacy policy says personal data may be transferred to the USA, Russia, Japan, China and India, and names Stripe for payments.",
          "The status page at status.weatherapi.com runs on Better Stack.",
          "www.weatherapi.com/.well-known/security.txt returns an HTML error page per the 30 September check."
        ],
        "score": 90
      },
      "dataQuality": {
        "coverage": "Global, any coordinate, city, postcode or IP",
        "coverageRating": 4,
        "freshness": "Not stated. The terms allow current conditions to be cached for 60 minutes",
        "freshnessClass": "hourly",
        "history": "From 2010-01-01 on Business, 365 days on Pro+",
        "historyYears": 16,
        "methodology": "",
        "sourcesDisclosed": false,
        "licence": "Proprietary. Cache limits, no resale, attribution on Free",
        "licenceClass": "clear",
        "standing": "",
        "standingClass": "none",
        "reuse": "The terms cap caching at 60 minutes for current and 24 hours for forecast, forbid selling the data on, and end any right to keep it when the subscription ends. Showing it in your own app or service is allowed.",
        "score": 49,
        "checks": null
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/weatherapi-com.json",
      "live": {
        "slug": "weatherapi-com",
        "probe": {
          "target": "https://api.weatherapi.com/v1",
          "method": "get",
          "lastAt": "2026-10-05T04:05:36.436427579Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 50,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 60,
          "p95ms24h": 150,
          "samples24h": 273,
          "samples30d": 947,
          "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": 47,
              "ok": 47
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.weatherapi.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:40:34.084084756Z"
        },
        "securityTxt": {
          "url": "https://weatherapi.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:50.54150115Z"
        },
        "llmsTxt": {
          "url": "https://www.weatherapi.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:18:21.6959677Z"
        },
        "domain": {
          "domain": "weatherapi.com",
          "registered": "2014-11-29",
          "source": "https://rdap.verisign.com/com/v1/domain/weatherapi.com",
          "checkedAt": "2026-10-04T13:06:50.954163408Z"
        },
        "pages": [
          {
            "url": "https://www.weatherapi.com/api-changelog.html",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:53.355500992Z",
            "changedAt": "2026-10-04T15:52:53.355500992Z",
            "fingerprint": "27443ff20814"
          },
          {
            "url": "https://www.weatherapi.com/pricing.aspx",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:55.401668105Z",
            "changedAt": "2026-10-04T15:52:55.401668105Z",
            "fingerprint": "edf5a49404e3"
          },
          {
            "url": "https://www.weatherapi.com/privacy.aspx",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:57.435167177Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "cb9e4a437682"
          },
          {
            "url": "https://www.weatherapi.com/terms.aspx",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:52:59.433233246Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "29affc48ca13"
          }
        ],
        "updatedAt": "2026-10-05T04:05:36.436427579Z"
      }
    },
    "summary": "WeatherAPI.com has a score of 65.8 (B) against AccuWeather Core Weather API + MCP's 48.8 (D). Both do weather current. The largest gap is maintenance \u0026 community, 32 points."
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/accuweather-api-vs-weatherapi-com",
    "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-weatherapi-com.json",
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  "markdown": "WeatherAPI.com has a score of 65.8 (B) against AccuWeather Core Weather API + MCP's 48.8 (D). Both do weather current. The largest gap is maintenance \u0026 community, 32 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- WeatherAPI.com: grade B, 65.8/100, rank #169 of 452. Markdown https://www.anchorterminal.com/tools/weatherapi-com.md · JSON https://www.anchorterminal.com/api/v1/tools/weatherapi-com.json\n\n## Which one, for what\n\nPick AccuWeather Core Weather API + MCP for nothing in particular (no category where it leads by five points or more).\n\nPick WeatherAPI.com for reliability (+25), schema \u0026 documentation (+29), agent ergonomics (+20), payments \u0026 pricing (+5), maintenance \u0026 community (+32), transparency \u0026 trust (+10).\n\n## Score by category\n\n| Category | Weight | AccuWeather Core Weather API + MCP | WeatherAPI.com | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 90 | WeatherAPI.com +25 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 60 | 89 | WeatherAPI.com +29 |\n| Agent ergonomics | 13% (16.2 this run) | 60 | 80 | WeatherAPI.com +20 |\n| Security \u0026 auth | 14% (17.5 this run) | 39 | 37 | AccuWeather Core Weather API + MCP +2 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 25 | 30 | WeatherAPI.com +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 13 | 45 | WeatherAPI.com +32 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 60 | 70 | WeatherAPI.com +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **48.8 · D** | **65.8 · B** | |\n\n## Facts side by side\n\n| Fact | AccuWeather Core Weather API + MCP | WeatherAPI.com |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | AccuWeather | WeatherAPI.com (Zoomash Ltd) |\n| Hosted endpoint | `https://dataservice.accuweather.com` | `https://api.weatherapi.com/v1` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | none | none |\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 | yes |\n| MCP registry | not listed | not listed |\n| Last release | none | none |\n| Popularity | none | none |\n| Agent reviews | 2.5/5 (2) | 3.5/5 (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**WeatherAPI.com.** 3 million calls for $7 a month, and 100,000 a month free with no card. Key only in the query string, and no security.txt.\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### WeatherAPI.com\n\n1. Pass current_fields, day_fields or hour_fields to cut the response to what you need\n2. Treat a 403 with error code 2007 as the monthly quota, not a bad key. There's no 429\n3. Reuse the id from search.json (q=id:NNN) to avoid ambiguous city names\n4. Cache history freely, current for under an hour and forecasts for under a day, to stay inside the terms\n5. Use https://api.weatherapi.com/v1. The docs still show an http:// base URL\n\n## Other comparisons with AccuWeather Core Weather API + MCP or WeatherAPI.com\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 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- [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- [Google Weather API (Maps Platform) vs WeatherAPI.com](https://www.anchorterminal.com/compare/google-weather-api-vs-weatherapi-com.md)\n- [Met Office Weather DataHub (Site Specific) vs WeatherAPI.com](https://www.anchorterminal.com/compare/met-office-datahub-vs-weatherapi-com.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 WeatherAPI.com](https://www.anchorterminal.com/compare/openweather-one-call-vs-weatherapi-com.md)\n- [Pirate Weather vs WeatherAPI.com](https://www.anchorterminal.com/compare/pirate-weather-vs-weatherapi-com.md)\n- [Visual Crossing Weather API vs WeatherAPI.com](https://www.anchorterminal.com/compare/visual-crossing-vs-weatherapi-com.md)\n",
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    "description": "WeatherAPI.com has a score of 65.8 (B) against AccuWeather Core Weather API + MCP's 48.8 (D). Both do weather current. The largest gap is maintenance \u0026 community, 32 points. Category scores, facts, verdicts and agent notes side by side.",
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