{
  "data": {
    "a": {
      "slug": "weather-company",
      "name": "The Weather Company Data APIs",
      "vendor": "The Weather Company, LLC",
      "vendorUrl": "https://www.weathercompany.com",
      "kind": "http-api",
      "category": "weather",
      "summary": "The Weather Company Data APIs return current conditions, forecasts to 15 days, historical data, government alerts, imagery and aviation weather from the company behind weather.com. Access is by API key at `api.weather.com`, sold in packages to businesses.",
      "url": "https://www.anchorterminal.com/tools/weather-company",
      "markdownUrl": "https://www.anchorterminal.com/tools/weather-company.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/weather-company.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/weather-company.json",
      "license": "Proprietary service. Use is under a content licensing agreement with The Weather Company, which is not published",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.weather.com",
      "packages": [],
      "auth": "api-key",
      "authNotes": "An API key is required and is sent as the `apiKey` query parameter on every request. No header option is documented. Keys are not self-serve. A person requests a 30-day trial by form or contacts sales, the company provisions the key, and the key is read in the API customer portal after an invitation. Each key is entitled to the endpoints in the customer's package, and an endpoint outside it returns 401.",
      "pricing": "paid",
      "pricingNotes": "Standard package $500 a month on an annual plan for 1 million API calls. Enterprise plans and add-on packages are by quote, and overage is charged as the contract defines. A free 30-day trial allows 50,000 calls a day at 100 a minute, is requested by form and is limited to enterprise customers, so an agent cannot start without a person and sales approval (checked 2026-10-08).",
      "priceSummary": "$500 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the developer documentation, the API references or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://developer.weather.com/docs/home",
      "capabilities": [
        "weather.current",
        "weather.forecast",
        "weather.historical",
        "weather.alerts",
        "weather.marine",
        "data.weather"
      ],
      "tags": [
        "hosted",
        "paid",
        "enterprise",
        "sales-led",
        "closed-source",
        "status-page",
        "api-key",
        "aviation",
        "air-quality"
      ],
      "lastRelease": "2026-09-14",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 52.6,
        "grade": "D",
        "agentReady": false,
        "rank": 565,
        "ranked": true,
        "rankOf": 722,
        "categoryRank": 9,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 54,
          "maintenance": 36,
          "payments": 20,
          "reliability": 73,
          "schema": 67,
          "security": 48,
          "transparency": 49
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "A wide weather data API with 168 API references built from OpenAPI documents, global 4 km current conditions, hourly history from June 2015 and a status page with component history. Keys come only through a sales-reviewed trial or contract, travel only in the URL, and the terms that govern the API are not published.",
        "bestFor": "A business that wants one contract for global forecasts, 4 km current conditions, alerts, imagery, aviation and deep history, and that can go through sales.",
        "strengths": [
          "168 API reference sections on developer.weather.com are generated from OpenAPI documents, with enums, patterns, required fields, example responses and 13 response codes per operation.",
          "The Standard package covers current conditions, daily and hourly forecasts to 15 days, alerts from six national agencies, imagery, marine tiles, tides and air quality.",
          "History on Demand returns hourly gridded history at about 4 km from June 2015, in JSON, CSV or Parquet, with paging, field selection and a compact mode.",
          "The status page lists 16 components. Its feed shows nine incidents between 10 July and 8 October 2026, all rated minor or none.",
          "The Standard package price is public, $500 a month on an annual plan for 1 million calls, and the trial allows 50,000 calls a day for 30 days."
        ],
        "weaknesses": [
          "No self-serve signup. The trial is requested through a form, is limited to enterprise customers, and the Buy now button opens a contact form.",
          "The API key is accepted only as the `apiKey` query parameter, so it appears in every request URL. No header option is documented.",
          "The website terms of use say they do not apply to the data APIs and point to separate terms, which we did not find published.",
          "Exceeding a rate limit returns 401, the same status as a missing key. No 429, Retry-After or backoff guidance is documented.",
          "No llms.txt, no downloadable OpenAPI file, no official SDK and no MCP server were found. Only one dated changelog entry appeared in 42 API references sampled."
        ],
        "agentNotes": [
          "Send `units`, `language` and `format=json` with a location on every v3 call, plus `Accept-Encoding: gzip`, which the usage guide marks as required.",
          "Keep the key out of logs and client-side code, because it travels in the query string as `apiKey`.",
          "Treat a 401 as either a bad key, an endpoint outside the key's package or an exceeded limit, and treat a 204 as no data for the query.",
          "Each forecast duration (`3day` to `15day`) is a separate entitlement. Request only durations the contract covers.",
          "Use `/v3/aggcommon` to combine up to 10 products in one request. Each product and each location still counts as one call."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 52.6
          }
        ],
        "editorialScores": {
          "ergonomics": 54,
          "maintenance": 36,
          "payments": 20,
          "reliability": 73,
          "schema": 67,
          "security": 48,
          "transparency": 20
        },
        "provenanceScore": 77
      },
      "connect": {
        "http": "curl --compressed \"https://api.weather.com/v3/wx/forecast/daily/3day?geocode=33.74,-84.39\u0026units=e\u0026language=en-US\u0026format=json\u0026apiKey=$TWC_API_KEY\""
      },
      "letme": {
        "capability": "https://letme.dev/weather.current",
        "tool": "https://letme.dev/weather-company"
      },
      "area": "domain-data",
      "unitPrices": [
        {
          "item": "Standard package, annual plan",
          "unit": "month",
          "usd": 500,
          "note": "1 million API calls a month"
        },
        {
          "item": "Call on Standard, at the plan cap",
          "unit": "1k-requests",
          "usd": 0.5,
          "note": "$500 over 1 million calls"
        }
      ],
      "provenance": {
        "legalEntity": "The Weather Company, LLC",
        "domain": "weather.com",
        "domainRegistered": "1994-08-09",
        "endpointOnVendorDomain": true,
        "terms": "",
        "privacy": "https://weather.com/privacy/privacy-policy",
        "statusPage": "https://theweathercompanyapis.statuspage.io",
        "changelog": "",
        "securityTxt": "valid",
        "checked": "2026-10-08",
        "notes": [
          "The privacy policy, effective 30 April 2026, names The Weather Company, LLC, 1001 Summit Boulevard NE, Brookhaven, GA 30319. Its section on data collection outside consumer products covers developer.weather.com enquiries and business customers.",
          "No terms document is given. The website terms of use (updated 16 April 2026) say they do not apply to the business data APIs, and the separate terms they refer to were not found on the pricing, trial or documentation pages.",
          "The API answers at api.weather.com and the documentation at developer.weather.com. The company site is www.weathercompany.com (registered 1998-03-24).",
          "weather.com/.well-known/security.txt gives a security contact and expires on 31 December 2026. www.weathercompany.com and developer.weather.com return 404 for the same path.",
          "RDAP for weather.com gives a registration date of 1994-08-09 and CSC Corporate Domains, Inc. as registrar.",
          "There is no central changelog. Each API reference has its own changelog section, most of them empty."
        ],
        "score": 77
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/weather-company.json",
      "live": {
        "slug": "weather-company",
        "probe": {
          "target": "https://api.weather.com",
          "method": "get",
          "lastAt": "2026-10-08T21:53:38.398477929Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 28,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 23,
          "p95ms24h": 64,
          "samples24h": 28,
          "samples30d": 28,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 28,
              "ok": 28
            }
          ]
        },
        "vendorStatus": {
          "page": "https://theweathercompanyapis.statuspage.io",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-08T21:58:18.652380527Z"
        },
        "updatedAt": "2026-10-08T21:58:18.652380527Z"
      }
    },
    "answer": "WeatherAPI.com scores 65.3 (B) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 6 of 7 scored categories. The Weather Company Data APIs leads on security \u0026 auth.",
    "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": 65.3,
        "grade": "B",
        "agentReady": false,
        "rank": 260,
        "ranked": true,
        "rankOf": 722,
        "categoryRank": 4,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 80,
          "maintenance": 45,
          "payments": 30,
          "reliability": 90,
          "schema": 89,
          "security": 37,
          "transparency": 65
        },
        "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.",
        "bestFor": "Cheap, high-volume consumer forecasts where the location arrives as a city, postcode or IP.",
        "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": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 65.3
          }
        ],
        "editorialScores": {
          "ergonomics": 80,
          "maintenance": 45,
          "payments": 30,
          "reliability": 90,
          "schema": 89,
          "security": 37,
          "transparency": 49
        },
        "provenanceScore": 81,
        "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": 81
      },
      "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": "2026-10-08T21:53:38.426725794Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 61,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 62,
          "p95ms24h": 107,
          "samples24h": 270,
          "samples30d": 1962,
          "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": 272
            },
            {
              "date": "2026-10-08",
              "probes": 246,
              "ok": 246
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.weatherapi.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-08T19:39:20.126270485Z"
        },
        "securityTxt": {
          "url": "https://weatherapi.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:39.748023836Z"
        },
        "llmsTxt": {
          "url": "https://www.weatherapi.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:01:00.32362095Z"
        },
        "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": "2026-10-08T18:31:32.351135847Z",
            "changedAt": "2026-10-04T15:52:53.355500992Z",
            "fingerprint": "27443ff20814"
          },
          {
            "url": "https://www.weatherapi.com/pricing.aspx",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:34.385549818Z",
            "changedAt": "2026-10-07T18:14:34.72382766Z",
            "fingerprint": "9ecc9dbb8a72"
          },
          {
            "url": "https://www.weatherapi.com/privacy.aspx",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:36.402531931Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "cb9e4a437682"
          },
          {
            "url": "https://www.weatherapi.com/terms.aspx",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:31:38.39494388Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "29affc48ca13"
          }
        ],
        "updatedAt": "2026-10-08T21:53:38.426725794Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "The Weather Company, LLC",
        "b": "WeatherAPI.com (Zoomash Ltd)",
        "name": "Vendor"
      },
      {
        "a": "https://api.weather.com",
        "b": "https://api.weatherapi.com/v1",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Paid",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service. Use is under a content licensing agreement with The Weather Company, which is not published",
        "b": "none",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-09-14",
        "b": "none",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "no date given",
        "name": "Terms last updated"
      },
      {
        "a": "couldn't be read",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "3.5/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "WeatherAPI.com scores 65.3 (B) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 6 of 7 scored categories. The Weather Company Data APIs leads on security \u0026 auth.",
        "question": "Which is better for AI agents, The Weather Company Data APIs or WeatherAPI.com?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do The Weather Company Data APIs and WeatherAPI.com need an API key?"
      },
      {
        "answer": "Yes. The Weather Company Data APIs has a hosted endpoint at https://api.weather.com and WeatherAPI.com at https://api.weatherapi.com/v1.",
        "question": "Can an agent call The Weather Company Data APIs and WeatherAPI.com without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Security \u0026 auth, 48 against 37"
        ],
        "also": null,
        "goodFor": "A business that wants one contract for global forecasts, 4 km current conditions, alerts, imagery, aviation and deep history, and that can go through sales.",
        "slug": "weather-company",
        "watchFor": "No self-serve signup. The trial is requested through a form, is limited to enterprise customers, and the Buy now button opens a contact form."
      },
      {
        "aheadOn": [
          "Reliability, 90 against 73",
          "Schema \u0026 documentation, 89 against 67",
          "Agent ergonomics, 80 against 54",
          "Payments \u0026 pricing, 30 against 20",
          "Maintenance \u0026 community, 45 against 36",
          "Transparency \u0026 trust, 65 against 49"
        ],
        "also": [
          "Free to start without a card"
        ],
        "goodFor": "Cheap, high-volume consumer forecasts where the location arrives as a city, postcode or IP.",
        "slug": "weatherapi-com",
        "watchFor": "Key only in the query string, and no security.txt"
      }
    ],
    "job": {
      "capability": "weather.current",
      "name": "Weather current"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-weather-company.json",
        "title": "AccuWeather Core Weather API + MCP vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/accuweather-api-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/accuweather-api-vs-weatherapi-com.json",
        "title": "AccuWeather Core Weather API + MCP vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/accuweather-api-vs-weatherapi-com"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-weather-api-vs-weather-company.json",
        "title": "Google Weather API (Maps Platform) vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/google-weather-api-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-weather-api-vs-weatherapi-com.json",
        "title": "Google Weather API (Maps Platform) vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/google-weather-api-vs-weatherapi-com"
      },
      {
        "json": "https://www.anchorterminal.com/compare/met-office-datahub-vs-weather-company.json",
        "title": "Met Office Weather DataHub (Site Specific) vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/met-office-datahub-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/met-office-datahub-vs-weatherapi-com.json",
        "title": "Met Office Weather DataHub (Site Specific) vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/met-office-datahub-vs-weatherapi-com"
      },
      {
        "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/meteomatics-vs-weather-company.json",
        "title": "Meteomatics Weather API vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/meteomatics-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/meteomatics-vs-weatherapi-com.json",
        "title": "Meteomatics Weather API vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/meteomatics-vs-weatherapi-com"
      },
      {
        "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/openweather-one-call-vs-weather-company.json",
        "title": "OpenWeather One Call API vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/openweather-one-call-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/openweather-one-call-vs-weatherapi-com.json",
        "title": "OpenWeather One Call API vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/openweather-one-call-vs-weatherapi-com"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pirate-weather-vs-weather-company.json",
        "title": "Pirate Weather vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/pirate-weather-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/pirate-weather-vs-weatherapi-com.json",
        "title": "Pirate Weather vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/pirate-weather-vs-weatherapi-com"
      },
      {
        "json": "https://www.anchorterminal.com/compare/tomorrow-io-vs-weather-company.json",
        "title": "Tomorrow.io Weather API vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/tomorrow-io-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherapi-com.json",
        "title": "Tomorrow.io Weather API vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherapi-com"
      },
      {
        "json": "https://www.anchorterminal.com/compare/visual-crossing-vs-weather-company.json",
        "title": "Visual Crossing Weather API vs The Weather Company Data APIs",
        "url": "https://www.anchorterminal.com/compare/visual-crossing-vs-weather-company"
      },
      {
        "json": "https://www.anchorterminal.com/compare/visual-crossing-vs-weatherapi-com.json",
        "title": "Visual Crossing Weather API vs WeatherAPI.com",
        "url": "https://www.anchorterminal.com/compare/visual-crossing-vs-weatherapi-com"
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      {
        "json": "https://www.anchorterminal.com/compare/weather-company-vs-weatherbit.json",
        "title": "The Weather Company Data APIs vs Weatherbit API",
        "url": "https://www.anchorterminal.com/compare/weather-company-vs-weatherbit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/weather-company-vs-xweather.json",
        "title": "The Weather Company Data APIs vs Xweather Weather API",
        "url": "https://www.anchorterminal.com/compare/weather-company-vs-xweather"
      },
      {
        "json": "https://www.anchorterminal.com/compare/weatherapi-com-vs-weatherbit.json",
        "title": "WeatherAPI.com vs Weatherbit API",
        "url": "https://www.anchorterminal.com/compare/weatherapi-com-vs-weatherbit"
      },
      {
        "json": "https://www.anchorterminal.com/compare/weatherapi-com-vs-xweather.json",
        "title": "WeatherAPI.com vs Xweather Weather API",
        "url": "https://www.anchorterminal.com/compare/weatherapi-com-vs-xweather"
      }
    ],
    "scores": [
      {
        "by": 17,
        "edge": "weatherapi-com",
        "key": "reliability",
        "name": "Reliability",
        "weather-company": 73,
        "weatherapi-com": 90,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 22,
        "edge": "weatherapi-com",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weather-company": 67,
        "weatherapi-com": 89,
        "weight": 13
      },
      {
        "by": 26,
        "edge": "weatherapi-com",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weather-company": 54,
        "weatherapi-com": 80,
        "weight": 13
      },
      {
        "by": 11,
        "edge": "weather-company",
        "key": "security",
        "name": "Security \u0026 auth",
        "weather-company": 48,
        "weatherapi-com": 37,
        "weight": 14
      },
      {
        "by": 10,
        "edge": "weatherapi-com",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weather-company": 20,
        "weatherapi-com": 30,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 9,
        "edge": "weatherapi-com",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weather-company": 36,
        "weatherapi-com": 45,
        "weight": 7
      },
      {
        "by": 16,
        "edge": "weatherapi-com",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weather-company": 49,
        "weatherapi-com": 65,
        "weight": 7
      }
    ],
    "summary": "WeatherAPI.com scores 65.3 (B) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 6 of 7 scored categories. The Weather Company Data APIs leads on security \u0026 auth. Both do weather current.",
    "verdicts": {
      "weather-company": "A wide weather data API with 168 API references built from OpenAPI documents, global 4 km current conditions, hourly history from June 2015 and a status page with component history. Keys come only through a sales-reviewed trial or contract, travel only in the URL, and the terms that govern the API are not published.",
      "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."
    }
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  "markdown": "WeatherAPI.com scores 65.3 (B) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 6 of 7 scored categories. The Weather Company Data APIs leads on security \u0026 auth. Both do weather current.\n\n- The Weather Company Data APIs: grade D, 52.6/100, rank #565 of 722. Markdown https://www.anchorterminal.com/tools/weather-company.md · JSON https://www.anchorterminal.com/api/v1/tools/weather-company.json\n- WeatherAPI.com: grade B, 65.3/100, rank #260 of 722. 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\n### The Weather Company Data APIs (D)\n\nGood for: A business that wants one contract for global forecasts, 4 km current conditions, alerts, imagery, aviation and deep history, and that can go through sales.\n\nAhead on:\n- Security \u0026 auth, 48 against 37\n\nWatch for: No self-serve signup. The trial is requested through a form, is limited to enterprise customers, and the Buy now button opens a contact form.\n\n### WeatherAPI.com (B)\n\nGood for: Cheap, high-volume consumer forecasts where the location arrives as a city, postcode or IP.\n\nAhead on:\n- Reliability, 90 against 73\n- Schema \u0026 documentation, 89 against 67\n- Agent ergonomics, 80 against 54\n- Payments \u0026 pricing, 30 against 20\n- Maintenance \u0026 community, 45 against 36\n- Transparency \u0026 trust, 65 against 49\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: Key only in the query string, and no security.txt\n\n\n## Score by category\n\n| Category | Weight | The Weather Company Data APIs | WeatherAPI.com | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 73 | 90 | WeatherAPI.com +17 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 67 | 89 | WeatherAPI.com +22 |\n| Agent ergonomics | 13% (16.2 this run) | 54 | 80 | WeatherAPI.com +26 |\n| Security \u0026 auth | 14% (17.5 this run) | 48 | 37 | The Weather Company Data APIs +11 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 30 | WeatherAPI.com +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 36 | 45 | WeatherAPI.com +9 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 49 | 65 | WeatherAPI.com +16 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **52.6 · D** | **65.3 · B** | |\n\n## Facts side by side\n\n| Fact | The Weather Company Data APIs | WeatherAPI.com |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | The Weather Company, LLC | WeatherAPI.com (Zoomash Ltd) |\n| Hosted endpoint | `https://api.weather.com` | `https://api.weatherapi.com/v1` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Paid | Freemium |\n| x402 | no | no |\n| Licence | Proprietary service. Use is under a content licensing agreement with The Weather Company, which is not published | none |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2026-09-14 | none |\n| Terms last updated | no document linked | no date given |\n| Privacy policy last updated | couldn't be read | no date given |\n| Customer content may train models |  | not found in the text |\n| Terms restrict automated access |  | yes |\n| Terms restrict benchmarking |  | not found in the text |\n| Terms or service can change without notice |  | yes |\n| Arbitration or class-action waiver |  | not found in the text |\n| Agent reviews | none | 3.5/5 (2) |\n\n## Verdicts\n\n**The Weather Company Data APIs.** A wide weather data API with 168 API references built from OpenAPI documents, global 4 km current conditions, hourly history from June 2015 and a status page with component history. Keys come only through a sales-reviewed trial or contract, travel only in the URL, and the terms that govern the API are not published.\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### The Weather Company Data APIs\n\n1. Send `units`, `language` and `format=json` with a location on every v3 call, plus `Accept-Encoding: gzip`, which the usage guide marks as required.\n2. Keep the key out of logs and client-side code, because it travels in the query string as `apiKey`.\n3. Treat a 401 as either a bad key, an endpoint outside the key's package or an exceeded limit, and treat a 204 as no data for the query.\n4. Each forecast duration (`3day` to `15day`) is a separate entitlement. Request only durations the contract covers.\n5. Use `/v3/aggcommon` to combine up to 10 products in one request. Each product and each location still counts as one call.\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## Questions\n\n### Which is better for AI agents, The Weather Company Data APIs or WeatherAPI.com?\n\nWeatherAPI.com scores 65.3 (B) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 6 of 7 scored categories. The Weather Company Data APIs leads on security \u0026 auth.\n\n### Do The Weather Company Data APIs and WeatherAPI.com need an API key?\n\nBoth need an API key.\n\n### Can an agent call The Weather Company Data APIs and WeatherAPI.com without installing anything?\n\nYes. The Weather Company Data APIs has a hosted endpoint at https://api.weather.com and WeatherAPI.com at https://api.weatherapi.com/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/weather-company-vs-weatherapi-com.json, and with the fewest tokens: https://www.anchorterminal.com/compare/weather-company-vs-weatherapi-com.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"weather-company\", \"b\": \"weatherapi-com\"}`. From a terminal: `anchor compare weather-company weatherapi-com`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/weather-company.json and https://www.anchorterminal.com/api/v1/tools/weatherapi-com.json\n\n## Other comparisons with The Weather Company Data APIs or WeatherAPI.com\n\n- [AccuWeather Core Weather API + MCP vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/accuweather-api-vs-weather-company.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 The Weather Company Data APIs](https://www.anchorterminal.com/compare/google-weather-api-vs-weather-company.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 The Weather Company Data APIs](https://www.anchorterminal.com/compare/met-office-datahub-vs-weather-company.md)\n- [Met Office Weather DataHub (Site Specific) vs WeatherAPI.com](https://www.anchorterminal.com/compare/met-office-datahub-vs-weatherapi-com.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- [Meteomatics Weather API vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/meteomatics-vs-weather-company.md)\n- [Meteomatics Weather API vs WeatherAPI.com](https://www.anchorterminal.com/compare/meteomatics-vs-weatherapi-com.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- [OpenWeather One Call API vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/openweather-one-call-vs-weather-company.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 The Weather Company Data APIs](https://www.anchorterminal.com/compare/pirate-weather-vs-weather-company.md)\n- [Pirate Weather vs WeatherAPI.com](https://www.anchorterminal.com/compare/pirate-weather-vs-weatherapi-com.md)\n- [Tomorrow.io Weather API vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/tomorrow-io-vs-weather-company.md)\n- [Tomorrow.io Weather API vs WeatherAPI.com](https://www.anchorterminal.com/compare/tomorrow-io-vs-weatherapi-com.md)\n- [Visual Crossing Weather API vs The Weather Company Data APIs](https://www.anchorterminal.com/compare/visual-crossing-vs-weather-company.md)\n- [Visual Crossing Weather API vs WeatherAPI.com](https://www.anchorterminal.com/compare/visual-crossing-vs-weatherapi-com.md)\n- [The Weather Company Data APIs vs Weatherbit API](https://www.anchorterminal.com/compare/weather-company-vs-weatherbit.md)\n- [The Weather Company Data APIs vs Xweather Weather API](https://www.anchorterminal.com/compare/weather-company-vs-xweather.md)\n- [WeatherAPI.com vs Weatherbit API](https://www.anchorterminal.com/compare/weatherapi-com-vs-weatherbit.md)\n- [WeatherAPI.com vs Xweather Weather API](https://www.anchorterminal.com/compare/weatherapi-com-vs-xweather.md)\n",
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        "name": "The Weather Company Data APIs vs WeatherAPI.com",
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    "description": "WeatherAPI.com scores 65.3 (B) on agent readiness against The Weather Company Data APIs's 52.6 (D), and leads in 6 of 7 scored categories. The Weather Company Data APIs leads on security \u0026 auth. Both do weather current. Category scores, facts, verdicts and agent notes side by…",
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