{
  "data": {
    "a": {
      "slug": "se-ranking",
      "name": "SE Ranking API + MCP",
      "vendor": "SE Ranking (SER Acquisition Inc.)",
      "vendorUrl": "https://seranking.com",
      "kind": "http-api",
      "category": "seo",
      "summary": "SE Ranking is an SEO platform whose Data API returns keyword, backlink, domain, site audit and AI search data for credits. A Project API manages rank tracking in the account, and a hosted MCP server exposes both to agents.",
      "url": "https://www.anchorterminal.com/tools/se-ranking",
      "markdownUrl": "https://www.anchorterminal.com/tools/se-ranking.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/se-ranking.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/se-ranking.json",
      "repo": "https://github.com/seranking/openapi",
      "license": "Proprietary service under the SE Ranking API Terms of Service. The OpenAPI file and the Claude skills on GitHub are MIT",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.seranking.com",
      "packages": [],
      "auth": "mixed",
      "authNotes": "REST calls take an API key as `Authorization: Token \u003ckey\u003e`, or as an `apikey` query parameter. One key covers the Data, Project, Local Marketing and SE Visible APIs, with no scopes. Keys are self-serve in the API dashboard of any plan or trial, with no app review. The MCP server signs in by OAuth 2.1 with dynamic client registration against the SE Ranking account, or takes the key in an `X-Api-Key` header. Sub-accounts have no keys of their own yet. Direct competitors, resale and embedding raw data in a paid product need written consent.",
      "pricing": "usage",
      "pricingNotes": "Data API calls spend credits, from $50 for 250,000 pay-as-you-go credits that don't expire. Each endpoint's credit cost is published and failed requests cost nothing. Subscription plans include 10,000 to 100,000 credits a month, an add-on starts at $540 a year for 3 million credits, and a standalone API plan at $2,148 a year for 12 million. Project API calls use the plan's limits instead of credits. A 14-day trial with 100,000 credits and MCP access needs no card and lets an agent start without a contract. Our request saw the pricing page in pounds.",
      "priceSummary": "$0.0002 / credit",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the API docs, the MCP docs or the API pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 0,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://seranking.com/api.html",
      "openapi": "https://raw.githubusercontent.com/seranking/openapi/main/openapi/data-api.yaml",
      "registryName": "com.seranking/mcp",
      "capabilities": [
        "seo.keywords",
        "seo.backlinks",
        "seo.rankings",
        "seo.traffic",
        "seo.serp"
      ],
      "tags": [
        "official",
        "hosted",
        "mcp",
        "oauth",
        "api-key",
        "openapi",
        "closed-source",
        "usage-credits",
        "prepaid",
        "free-trial",
        "status-page",
        "ai-visibility"
      ],
      "lastRelease": "2026-09-28",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 50.9,
        "grade": "D",
        "agentReady": false,
        "rank": 681,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 5,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 58,
          "maintenance": 79,
          "payments": 40,
          "reliability": 51,
          "schema": 58,
          "security": 21,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "Every Data API endpoint has a published credit cost, credits sell from $50 for 250,000 with no expiry, and a 14-day trial needs no card. Keys carry full account access with no scopes or read-only mode, the key may travel in the URL, and no security page, SLA or llms.txt was found.",
        "bestFor": "An agent that needs keyword, backlink, domain and AI search visibility data at a published price per call, or that manages rank tracking projects for an SE Ranking customer.",
        "strengths": [
          "Credit cost is published per endpoint, failed requests aren't charged, and pay-as-you-go packs start at $50 for 250,000 credits that don't expire",
          "A 14-day trial with 100,000 credits covers the API and the MCP server, with no card, per the pricing page",
          "Hosted MCP server at `https://api.seranking.com/mcp`, listed in the official MCP registry as `com.seranking/mcp` with 15 versions since 22 May 2026",
          "Rate limits are stated as 10 requests a second for the Data API and 5 for the Project API, with backoff guidance for 429",
          "`limit`, `offset`, `cols` and bracketed `filter` parameters size Data API responses, and an OpenAPI 3.0 file covers its 86 operations"
        ],
        "weaknesses": [
          "No scoped or read-only keys. The MCP docs say a key has the same access as the account, including Project API deletes",
          "The API key is accepted as an `apikey` query parameter, and the OpenAPI file and its README describe only that method",
          "No security page, certification statement, bug bounty or readable security.txt was found, and the API terms say there is no SLA without a separate agreement",
          "The MCP server advertises 180+ tools with no documented way to load a subset",
          "The API terms let SE Ranking remove deprecated functionality at any time, with up to 30 days' notice only where practicable"
        ],
        "agentNotes": [
          "Send the key as `Authorization: Token \u003ckey\u003e`, not `Bearer` and not `?apikey=`, so it stays out of URLs and logs",
          "Call `GET /v1/account/subscription` (0 credits) and read `units_left` before a large pull. A short balance returns `Insufficient funds`",
          "Set `limit` and `cols` on per-record endpoints. Backlink summaries cost 100 credits a target and keyword rows 10 credits each",
          "Stay under 10 requests a second on the Data API and 5 on the Project API per key. Repeated overruns block the Project API for 10 minutes",
          "Ask the owner before any Project API or `PROJECT_*` create, update or delete call. The key has no read-only mode and nothing confirms a delete"
        ],
        "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": 50.9
          }
        ],
        "editorialScores": {
          "ergonomics": 58,
          "maintenance": 79,
          "payments": 40,
          "reliability": 51,
          "schema": 58,
          "security": 21,
          "transparency": 59
        },
        "provenanceScore": 83
      },
      "connect": {
        "http": "curl -X GET 'https://api.seranking.com/v1/account/subscription' -H 'Authorization: Token YOUR_API_KEY'",
        "claudeCode": "claude mcp add --transport http se-ranking https://api.seranking.com/mcp",
        "config": {
          "mcpServers": {
            "se-ranking": {
              "url": "https://api.seranking.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/seo.keywords",
        "tool": "https://letme.dev/se-ranking"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Data API credit, pay-as-you-go",
          "unit": "credit",
          "usd": 0.0002,
          "note": "$50 for 250,000 credits that don't expire"
        },
        {
          "item": "Domain overview, per request",
          "unit": "call",
          "usd": 0.02,
          "note": "100 credits at the pay-as-you-go rate. Failed requests cost nothing"
        },
        {
          "item": "Keyword row (related, similar or question keywords)",
          "unit": "record",
          "usd": 0.002,
          "note": "10 credits a record at the pay-as-you-go rate"
        },
        {
          "item": "Backlink row",
          "unit": "record",
          "usd": 0.0002,
          "note": "1 credit a record at the pay-as-you-go rate. A backlink summary is 100 credits a target"
        },
        {
          "item": "Standalone API plan, 12 million credits a year",
          "unit": "month",
          "usd": 179,
          "note": "billed annually at $2,148, Data API only"
        },
        {
          "item": "API add-on, 3 million credits a year",
          "unit": "month",
          "usd": 45,
          "note": "billed annually at $540, on top of a subscription"
        }
      ],
      "provenance": {
        "legalEntity": "SER Acquisition Inc.",
        "domain": "seranking.com",
        "domainRegistered": "2010-09-16",
        "endpointOnVendorDomain": true,
        "terms": "https://seranking.com/legal/api-terms-of-service.html",
        "privacy": "https://seranking.com/legal/privacy-statement.html",
        "statusPage": "https://status.seranking.com",
        "changelog": "https://seranking.com/whats-new.html",
        "securityTxt": "unknown",
        "checked": "2026-10-08",
        "notes": [
          "The API Terms of Service (3 March 2026) name SER Acquisition Inc., care of The Corporation Trust Company, 1209 Orange Street, Wilmington, Delaware, as the provider as a general rule, and Seranking Ltd., London, for some earlier customers paying in pounds.",
          "The privacy statement (last updated 25 June 2026) names Seranking Ltd and SER Acquisition Inc. as joint controllers and says the group shares some data with Planable Inc.",
          "The REST APIs and the MCP server answer at api.seranking.com.",
          "seranking.com/.well-known/security.txt answered 403 to our request, so we couldn't tell whether a file exists.",
          "status.seranking.com is a Pulsetic status page titled SE Ranking Online Status. It isn't linked from the pages we read and its content is drawn by script.",
          "The What's New page lists releases by year. The dates of its entries aren't in the page's HTML.",
          "RDAP for seranking.com gives a registration date of 2010-09-16.",
          "robots.txt allows the pages we read and carries no Content-Signal line."
        ],
        "score": 83
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/se-ranking.json",
      "live": {
        "slug": "se-ranking",
        "probe": {
          "target": "https://api.seranking.com",
          "method": "get",
          "lastAt": "2026-10-09T10:42:55.908537326Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 110,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 97,
          "p95ms24h": 128,
          "samples24h": 33,
          "samples30d": 33,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 33,
              "ok": 33
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.seranking.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-09T07:58:31.020038985Z"
        },
        "updatedAt": "2026-10-09T10:42:55.908537326Z"
      }
    },
    "answer": "SE Ranking API + MCP scores 50.9 (D) on agent readiness against Similarweb's 46 (D), and leads in 4 of 7 scored categories. Similarweb leads on schema \u0026 documentation, agent ergonomics and security \u0026 auth.",
    "b": {
      "slug": "similarweb",
      "name": "Similarweb",
      "vendor": "Similarweb Ltd.",
      "vendorUrl": "https://www.similarweb.com",
      "kind": "http-api",
      "category": "seo",
      "summary": "Similarweb estimates website and app traffic from panel and other data sources. Its REST and Batch APIs and a hosted MCP server return visits, engagement, traffic channels, keywords and SERP data for a domain, under a paid subscription.",
      "url": "https://www.anchorterminal.com/tools/similarweb",
      "markdownUrl": "https://www.anchorterminal.com/tools/similarweb.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/similarweb.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/similarweb.json",
      "license": "Proprietary service under Similarweb's terms of use",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.similarweb.com",
      "packages": [],
      "auth": "mixed",
      "authNotes": "A paid subscription with API access is required (Business, Enterprise or the API-only package, bought through sales). An account admin creates keys in the platform under Settings, Account. Requests carry the key in an `api-key` header. Each user can hold up to 3 active keys with no expiry, and admins can deactivate keys and cap credits per user. The MCP server also accepts OAuth through mcp-auth.similarweb.com with dynamic client registration and a single `read` scope, signed in with a Similarweb login.",
      "pricing": "paid",
      "pricingNotes": "No public API price. API and MCP access come with Business and Enterprise plans or a standalone API package, all quoted by sales. Usage is metered in data credits that reset monthly. The FAQ says an active subscription with API access is needed to test the API, so no sandbox or free tier was found. Self-serve Web Intelligence plans start at $125 a month billed annually, and the docs say Starter and Professional plans may not include API access (checked 2026-10-08).",
      "priceSummary": "Paid",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the developer docs or on the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://docs.similarweb.com/api-v5/",
      "llmsTxt": "https://docs.similarweb.com/api-v5/llms.txt",
      "capabilities": [
        "seo.traffic",
        "seo.keywords",
        "seo.serp",
        "seo.rankings",
        "lead.enrichment",
        "data.company"
      ],
      "tags": [
        "hosted",
        "paid",
        "sales-led",
        "api-key",
        "oauth",
        "mcp",
        "llms-txt",
        "batch",
        "webhooks",
        "soc2"
      ],
      "lastRelease": "2026-09-24",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 46,
        "grade": "D",
        "agentReady": false,
        "rank": 762,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 7,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 67,
          "maintenance": 33,
          "payments": 5,
          "reliability": 35,
          "schema": 63,
          "security": 52,
          "transparency": 60
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "The V5 API returns traffic estimates, keyword clicks and SERP positions with selectable metrics, and the hosted MCP server accepts OAuth with a read scope. Access needs a Business, Enterprise or API-only subscription sold through sales, with no API trial, public price per credit or public status page found.",
        "bestFor": "Traffic and engagement estimates, traffic channel mix and keyword click data for domains an agent doesn't own, with app, company and retail data on the same key.",
        "strengths": [
          "Hosted MCP server at https://mcp.similarweb.com accepts an `api-key` header or OAuth, with dynamic client registration and one `read` scope",
          "V5 endpoints take a `metrics` list, so one request returns only the fields asked for, and each result costs one data credit",
          "Keyword endpoints cost one credit per 100 results, and errors and empty responses aren't charged, per the data credits guide",
          "Both documentation sites publish llms.txt and a Markdown copy of every page",
          "Admins can cap credits per user and deactivate keys, and the keys table shows last use and monthly usage per key"
        ],
        "weaknesses": [
          "API and MCP access need a Business, Enterprise or API-only plan bought through sales. The FAQ says there's no API test without a subscription",
          "No public status page found. similarweb.statuspage.io redirects to a Statuspage login",
          "No public OpenAPI file or official SDK found. The FAQ answers the SDK question by saying any HTTP client works",
          "No backlink endpoint in the V5 or V4 API reference, although the website lists a Backlink Analytics product",
          "The SLA page is dated January 2016 and its linked PDF returns 404"
        ],
        "agentNotes": [
          "Send the key in the `api-key` header. The capabilities endpoint documents `?api_key=` in the URL, which puts the secret in logs",
          "Stay under 10 requests a second. A 429 can also mean the monthly credit allowance is spent, so call `/capabilities` (free) before retrying",
          "Pass domains in lower case without `www.` or a path. The docs list 401 as data not found for a malformed domain",
          "Request only the metrics, countries and months needed. Credits multiply across domains, metrics, countries and periods, and daily granularity costs about 30 times monthly",
          "Website keywords accept monthly granularity for the last three months only, and `position` isn't returned for worldwide"
        ],
        "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": 46
          }
        ],
        "editorialScores": {
          "ergonomics": 67,
          "maintenance": 33,
          "payments": 5,
          "reliability": 35,
          "schema": 63,
          "security": 52,
          "transparency": 45
        },
        "provenanceScore": 75
      },
      "connect": {
        "http": "curl -G \"https://api.similarweb.com/v5/website-analysis/websites/traffic-and-engagement\" \\\n  -H \"api-key: $SIMILARWEB_API_KEY\" \\\n  -d \"domain=nike.com\" -d \"metrics=visits,bounce_rate,pages_per_visit\" \\\n  -d \"granularity=monthly\" -d \"start_date=2024-10-01\" -d \"end_date=2024-12-31\"",
        "config": {
          "mcpServers": {
            "similarweb-traffic-mcp": {
              "args": [
                "-y",
                "mcp-remote@latest",
                "https://mcp.similarweb.com",
                "--header",
                "api-key:YOUR_API_KEY"
              ],
              "command": "npx"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/seo.traffic",
        "tool": "https://letme.dev/similarweb"
      },
      "area": "web-data",
      "provenance": {
        "legalEntity": "Similarweb Ltd.",
        "domain": "similarweb.com",
        "domainRegistered": "2008-04-10",
        "endpointOnVendorDomain": true,
        "terms": "https://www.similarweb.com/corp/legal/terms/",
        "privacy": "https://www.similarweb.com/corp/legal/privacy-policy/",
        "statusPage": "",
        "changelog": "https://docs.similarweb.com/changelog/similarweb/api-v5",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The terms (last updated 19 March 2025) name Similarweb Ltd., 121 Menachem Begin Road, Tel Aviv, as the contracting company and DMCA agent. The privacy policy (last amended 30 June 2026) lists Similarweb Ltd. (Israel), Similarweb Inc. (Delaware) and Similarweb UK Ltd. among group companies.",
          "The API answers at api.similarweb.com and the MCP server at mcp.similarweb.com, with OAuth at mcp-auth.similarweb.com.",
          "www.similarweb.com/.well-known/security.txt returns 404.",
          "similarweb.statuspage.io redirects to a Statuspage login, so no public status page is recorded.",
          "The V5 changelog page loads its entries in the browser and we couldn't read them. The older changelog at developers.similarweb.com/changelog is readable.",
          "https://www.similarweb.com/corp/legal/sla/ is dated January 2016 and links a PDF that returns 404.",
          "RDAP for similarweb.com gives a registration date of 2008-04-10."
        ],
        "score": 75
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/similarweb.json",
      "live": {
        "slug": "similarweb",
        "probe": {
          "target": "https://api.similarweb.com",
          "method": "get",
          "lastAt": "2026-10-09T10:42:56.676728328Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 164,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 148,
          "p95ms24h": 222,
          "samples24h": 207,
          "samples30d": 207,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 93,
              "ok": 93
            },
            {
              "date": "2026-10-09",
              "probes": 114,
              "ok": 114
            }
          ]
        },
        "securityTxt": {
          "url": "https://similarweb.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:39:03.862346608Z"
        },
        "pages": [
          {
            "url": "https://docs.similarweb.com/changelog/similarweb/api-v5",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:19:26.596610692Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "e3b0c44298fc"
          },
          {
            "url": "https://www.similarweb.com/corp/legal/privacy-policy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:30:27.553563768Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "f2801b59a37b"
          },
          {
            "url": "https://www.similarweb.com/corp/legal/terms/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:30:29.845333215Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "1392028be0b0"
          }
        ],
        "updatedAt": "2026-10-09T10:42:56.676728328Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "SE Ranking (SER Acquisition Inc.)",
        "b": "Similarweb Ltd.",
        "name": "Vendor"
      },
      {
        "a": "https://api.seranking.com",
        "b": "https://api.similarweb.com",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Paid",
        "name": "Pricing"
      },
      {
        "a": "$0.002 per record",
        "b": "not published",
        "name": "Price for seo keywords"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under the SE Ranking API Terms of Service. The OpenAPI file and the Claude skills on GitHub are MIT",
        "b": "Proprietary service under Similarweb's terms of use",
        "name": "Licence"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "com.seranking/mcp",
        "b": "not listed",
        "name": "MCP registry"
      },
      {
        "a": "2026-09-28",
        "b": "2026-09-24",
        "name": "Last release"
      },
      {
        "a": "no date given",
        "b": "2025-03-19",
        "name": "Terms last updated"
      },
      {
        "a": "2026-06-25",
        "b": "2026-06-30",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "0 stars",
        "b": "none",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "SE Ranking API + MCP scores 50.9 (D) on agent readiness against Similarweb's 46 (D), and leads in 4 of 7 scored categories. Similarweb leads on schema \u0026 documentation, agent ergonomics and security \u0026 auth.",
        "question": "Which is better for AI agents, SE Ranking API + MCP or Similarweb?"
      },
      {
        "answer": "Both take an API key or an OAuth sign-in.",
        "question": "Do SE Ranking API + MCP and Similarweb need an API key?"
      },
      {
        "answer": "Yes. SE Ranking API + MCP has a hosted endpoint at https://api.seranking.com and Similarweb at https://api.similarweb.com.",
        "question": "Can an agent call SE Ranking API + MCP and Similarweb without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 51 against 35",
          "Payments \u0026 pricing, 40 against 5",
          "Maintenance \u0026 community, 79 against 33",
          "Transparency \u0026 trust, 71 against 60"
        ],
        "also": null,
        "goodFor": "An agent that needs keyword, backlink, domain and AI search visibility data at a published price per call, or that manages rank tracking projects for an SE Ranking customer.",
        "slug": "se-ranking",
        "watchFor": "No scoped or read-only keys. The MCP docs say a key has the same access as the account, including Project API deletes"
      },
      {
        "aheadOn": [
          "Schema \u0026 documentation, 63 against 58",
          "Agent ergonomics, 67 against 58",
          "Security \u0026 auth, 52 against 21"
        ],
        "also": null,
        "goodFor": "Traffic and engagement estimates, traffic channel mix and keyword click data for domains an agent doesn't own, with app, company and retail data on the same key.",
        "slug": "similarweb",
        "watchFor": "API and MCP access need a Business, Enterprise or API-only plan bought through sales. The FAQ says there's no API test without a subscription"
      }
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    "job": {
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      "name": "Seo keywords"
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    "others": [
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        "json": "https://www.anchorterminal.com/compare/ahrefs-vs-se-ranking.json",
        "title": "Ahrefs vs SE Ranking API + MCP",
        "url": "https://www.anchorterminal.com/compare/ahrefs-vs-se-ranking"
      },
      {
        "json": "https://www.anchorterminal.com/compare/ahrefs-vs-similarweb.json",
        "title": "Ahrefs vs Similarweb",
        "url": "https://www.anchorterminal.com/compare/ahrefs-vs-similarweb"
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      {
        "json": "https://www.anchorterminal.com/compare/dataforseo-vs-se-ranking.json",
        "title": "DataForSEO vs SE Ranking API + MCP",
        "url": "https://www.anchorterminal.com/compare/dataforseo-vs-se-ranking"
      },
      {
        "json": "https://www.anchorterminal.com/compare/dataforseo-vs-similarweb.json",
        "title": "DataForSEO vs Similarweb",
        "url": "https://www.anchorterminal.com/compare/dataforseo-vs-similarweb"
      },
      {
        "json": "https://www.anchorterminal.com/compare/manifold-mcp-vs-se-ranking.json",
        "title": "Manifold vs SE Ranking API + MCP",
        "url": "https://www.anchorterminal.com/compare/manifold-mcp-vs-se-ranking"
      },
      {
        "json": "https://www.anchorterminal.com/compare/manifold-mcp-vs-similarweb.json",
        "title": "Manifold vs Similarweb",
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      },
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        "json": "https://www.anchorterminal.com/compare/moz-api-vs-similarweb.json",
        "title": "Moz API vs Similarweb",
        "url": "https://www.anchorterminal.com/compare/moz-api-vs-similarweb"
      },
      {
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        "url": "https://www.anchorterminal.com/compare/se-ranking-vs-semrush"
      },
      {
        "json": "https://www.anchorterminal.com/compare/semrush-vs-similarweb.json",
        "title": "Semrush API + MCP vs Similarweb",
        "url": "https://www.anchorterminal.com/compare/semrush-vs-similarweb"
      },
      {
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      },
      {
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        "title": "Google Search Console API vs Similarweb",
        "url": "https://www.anchorterminal.com/compare/google-search-console-vs-similarweb"
      }
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    "scores": [
      {
        "by": 16,
        "edge": "se-ranking",
        "key": "reliability",
        "name": "Reliability",
        "se-ranking": 51,
        "similarweb": 35,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 5,
        "edge": "similarweb",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "se-ranking": 58,
        "similarweb": 63,
        "weight": 13
      },
      {
        "by": 9,
        "edge": "similarweb",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "se-ranking": 58,
        "similarweb": 67,
        "weight": 13
      },
      {
        "by": 31,
        "edge": "similarweb",
        "key": "security",
        "name": "Security \u0026 auth",
        "se-ranking": 21,
        "similarweb": 52,
        "weight": 14
      },
      {
        "by": 35,
        "edge": "se-ranking",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "se-ranking": 40,
        "similarweb": 5,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 46,
        "edge": "se-ranking",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "se-ranking": 79,
        "similarweb": 33,
        "weight": 7
      },
      {
        "by": 11,
        "edge": "se-ranking",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "se-ranking": 71,
        "similarweb": 60,
        "weight": 7
      }
    ],
    "summary": "SE Ranking API + MCP scores 50.9 (D) on agent readiness against Similarweb's 46 (D), and leads in 4 of 7 scored categories. Similarweb leads on schema \u0026 documentation, agent ergonomics and security \u0026 auth. Both do seo keywords.",
    "verdicts": {
      "se-ranking": "Every Data API endpoint has a published credit cost, credits sell from $50 for 250,000 with no expiry, and a 14-day trial needs no card. Keys carry full account access with no scopes or read-only mode, the key may travel in the URL, and no security page, SLA or llms.txt was found.",
      "similarweb": "The V5 API returns traffic estimates, keyword clicks and SERP positions with selectable metrics, and the hosted MCP server accepts OAuth with a read scope. Access needs a Business, Enterprise or API-only subscription sold through sales, with no API trial, public price per credit or public status page found."
    }
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  "markdown": "SE Ranking API + MCP scores 50.9 (D) on agent readiness against Similarweb's 46 (D), and leads in 4 of 7 scored categories. Similarweb leads on schema \u0026 documentation, agent ergonomics and security \u0026 auth. Both do seo keywords.\n\n- SE Ranking API + MCP: grade D, 50.9/100, rank #681 of 842. Markdown https://www.anchorterminal.com/tools/se-ranking.md · JSON https://www.anchorterminal.com/api/v1/tools/se-ranking.json\n- Similarweb: grade D, 46/100, rank #762 of 842. Markdown https://www.anchorterminal.com/tools/similarweb.md · JSON https://www.anchorterminal.com/api/v1/tools/similarweb.json\n\n## Which one, for what\n\n### SE Ranking API + MCP (D)\n\nGood for: An agent that needs keyword, backlink, domain and AI search visibility data at a published price per call, or that manages rank tracking projects for an SE Ranking customer.\n\nAhead on:\n- Reliability, 51 against 35\n- Payments \u0026 pricing, 40 against 5\n- Maintenance \u0026 community, 79 against 33\n- Transparency \u0026 trust, 71 against 60\n\nWatch for: No scoped or read-only keys. The MCP docs say a key has the same access as the account, including Project API deletes\n\n### Similarweb (D)\n\nGood for: Traffic and engagement estimates, traffic channel mix and keyword click data for domains an agent doesn't own, with app, company and retail data on the same key.\n\nAhead on:\n- Schema \u0026 documentation, 63 against 58\n- Agent ergonomics, 67 against 58\n- Security \u0026 auth, 52 against 21\n\nWatch for: API and MCP access need a Business, Enterprise or API-only plan bought through sales. The FAQ says there's no API test without a subscription\n\n\n## Score by category\n\n| Category | Weight | SE Ranking API + MCP | Similarweb | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 51 | 35 | SE Ranking API + MCP +16 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 58 | 63 | Similarweb +5 |\n| Agent ergonomics | 13% (16.2 this run) | 58 | 67 | Similarweb +9 |\n| Security \u0026 auth | 14% (17.5 this run) | 21 | 52 | Similarweb +31 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 5 | SE Ranking API + MCP +35 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 79 | 33 | SE Ranking API + MCP +46 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 60 | SE Ranking API + MCP +11 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **50.9 · D** | **46 · D** | |\n\n## Facts side by side\n\n| Fact | SE Ranking API + MCP | Similarweb |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | SE Ranking (SER Acquisition Inc.) | Similarweb Ltd. |\n| Hosted endpoint | `https://api.seranking.com` | `https://api.similarweb.com` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Pay per use | Paid |\n| Price for seo keywords | $0.002 per record | not published |\n| x402 | no | no |\n| Licence | Proprietary service under the SE Ranking API Terms of Service. The OpenAPI file and the Claude skills on GitHub are MIT | Proprietary service under Similarweb's terms of use |\n| Read-only variant documented | yes | no |\n| llms.txt | no | yes |\n| MCP registry | `com.seranking/mcp` | not listed |\n| Last release | 2026-09-28 | 2026-09-24 |\n| Terms last updated | no date given | 2025-03-19 |\n| Privacy policy last updated | 2026-06-25 | 2026-06-30 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | yes | yes |\n| Terms restrict benchmarking | yes | yes |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 0 stars | none |\n\n## Verdicts\n\n**SE Ranking API + MCP.** Every Data API endpoint has a published credit cost, credits sell from $50 for 250,000 with no expiry, and a 14-day trial needs no card. Keys carry full account access with no scopes or read-only mode, the key may travel in the URL, and no security page, SLA or llms.txt was found.\n\n**Similarweb.** The V5 API returns traffic estimates, keyword clicks and SERP positions with selectable metrics, and the hosted MCP server accepts OAuth with a read scope. Access needs a Business, Enterprise or API-only subscription sold through sales, with no API trial, public price per credit or public status page found.\n\n## Before you call either\n\n### SE Ranking API + MCP\n\n1. Send the key as `Authorization: Token \u003ckey\u003e`, not `Bearer` and not `?apikey=`, so it stays out of URLs and logs\n2. Call `GET /v1/account/subscription` (0 credits) and read `units_left` before a large pull. A short balance returns `Insufficient funds`\n3. Set `limit` and `cols` on per-record endpoints. Backlink summaries cost 100 credits a target and keyword rows 10 credits each\n4. Stay under 10 requests a second on the Data API and 5 on the Project API per key. Repeated overruns block the Project API for 10 minutes\n5. Ask the owner before any Project API or `PROJECT_*` create, update or delete call. The key has no read-only mode and nothing confirms a delete\n\n### Similarweb\n\n1. Send the key in the `api-key` header. The capabilities endpoint documents `?api_key=` in the URL, which puts the secret in logs\n2. Stay under 10 requests a second. A 429 can also mean the monthly credit allowance is spent, so call `/capabilities` (free) before retrying\n3. Pass domains in lower case without `www.` or a path. The docs list 401 as data not found for a malformed domain\n4. Request only the metrics, countries and months needed. Credits multiply across domains, metrics, countries and periods, and daily granularity costs about 30 times monthly\n5. Website keywords accept monthly granularity for the last three months only, and `position` isn't returned for worldwide\n\n## Questions\n\n### Which is better for AI agents, SE Ranking API + MCP or Similarweb?\n\nSE Ranking API + MCP scores 50.9 (D) on agent readiness against Similarweb's 46 (D), and leads in 4 of 7 scored categories. Similarweb leads on schema \u0026 documentation, agent ergonomics and security \u0026 auth.\n\n### Do SE Ranking API + MCP and Similarweb need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call SE Ranking API + MCP and Similarweb without installing anything?\n\nYes. SE Ranking API + MCP has a hosted endpoint at https://api.seranking.com and Similarweb at https://api.similarweb.com.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/se-ranking-vs-similarweb.json, and with the fewest tokens: https://www.anchorterminal.com/compare/se-ranking-vs-similarweb.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"se-ranking\", \"b\": \"similarweb\"}`. From a terminal: `anchor compare se-ranking similarweb`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/se-ranking.json and https://www.anchorterminal.com/api/v1/tools/similarweb.json\n\n## Other comparisons with SE Ranking API + MCP or Similarweb\n\n- [Ahrefs vs SE Ranking API + MCP](https://www.anchorterminal.com/compare/ahrefs-vs-se-ranking.md)\n- [Ahrefs vs Similarweb](https://www.anchorterminal.com/compare/ahrefs-vs-similarweb.md)\n- [DataForSEO vs SE Ranking API + MCP](https://www.anchorterminal.com/compare/dataforseo-vs-se-ranking.md)\n- [DataForSEO vs Similarweb](https://www.anchorterminal.com/compare/dataforseo-vs-similarweb.md)\n- [Manifold vs SE Ranking API + MCP](https://www.anchorterminal.com/compare/manifold-mcp-vs-se-ranking.md)\n- [Manifold vs Similarweb](https://www.anchorterminal.com/compare/manifold-mcp-vs-similarweb.md)\n- [Moz API vs SE Ranking API + MCP](https://www.anchorterminal.com/compare/moz-api-vs-se-ranking.md)\n- [Moz API vs Similarweb](https://www.anchorterminal.com/compare/moz-api-vs-similarweb.md)\n- [SE Ranking API + MCP vs Semrush API + MCP](https://www.anchorterminal.com/compare/se-ranking-vs-semrush.md)\n- [Semrush API + MCP vs Similarweb](https://www.anchorterminal.com/compare/semrush-vs-similarweb.md)\n- [Google Search Console API vs SE Ranking API + MCP](https://www.anchorterminal.com/compare/google-search-console-vs-se-ranking.md)\n- [Google Search Console API vs Similarweb](https://www.anchorterminal.com/compare/google-search-console-vs-similarweb.md)\n",
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    "description": "SE Ranking API + MCP scores 50.9 (D) on agent readiness against Similarweb's 46 (D), and leads in 4 of 7 scored categories. Similarweb leads on schema \u0026 documentation, agent ergonomics and security \u0026 auth. Both do seo keywords. Category scores, facts, verdicts and agent notes…",
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