{ "data": { "a": { "slug": "moz-api", "name": "Moz API", "vendor": "SEOmoz, Inc.", "vendorUrl": "https://moz.com", "kind": "http-api", "category": "seo", "summary": "Moz API is a hosted JSON-RPC 2.0 service for SEO data from Moz's link and keyword indexes. It returns Domain Authority, backlinks, keyword metrics, ranking keywords and search results, with a beta MCP server for AI clients.", "url": "https://www.anchorterminal.com/tools/moz-api", "markdownUrl": "https://www.anchorterminal.com/tools/moz-api.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/moz-api.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/moz-api.json", "license": "Proprietary service under the Moz API General Conditions (effective 12 August 2026 for new subscribers). Displaying Moz data to others requires attribution under the API legal page", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.moz.com/jsonrpc", "packages": [], "auth": "api-key", "authNotes": "Self-serve. A person signs up at moz.com with a credit card, then creates a token in the API dashboard. Each account holds up to five tokens, which can be deleted, and every request sends one in the `x-moz-token` header. No scopes or read-only tokens were found in the reviewed documentation. The beta MCP server at https://api.moz.com/mcp/v1/data accepts OAuth (authorisation code with PKCE, dynamic client registration, one scope named `mcp`) or the same token as a Bearer header, and is limited to account owners.", "pricing": "freemium", "pricingNotes": "Free plan of 50 rows a month at one request every ten seconds, which needs a valid credit card. Paid plans run from $20 a month for 3,000 rows to $500 for 500,000, with overage from $5 per 1,000 rows down to $10 per 10,000. Over 4 million rows a month is quoted by sales. There is no sandbox, though `quota.lookup`, `test.ping` and `test.ping.async` cost no rows (checked 2026-10-08).", "priceSummary": "$20 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API docs, the pricing page or the product page (checked 2026-10-08).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-08" }, "docsUrl": "https://moz.com/api/docs", "capabilities": [ "seo.keywords", "seo.backlinks", "seo.serp", "seo.rankings" ], "tags": [ "hosted", "json-rpc", "api-key", "freemium", "mcp", "oauth", "backlinks", "keywords", "closed-source" ], "lastRelease": "2026-08-14", "graded": true, "anchor": { "graded": true, "score": 45.3, "grade": "E", "agentReady": false, "rank": 571, "ranked": true, "rankOf": 629, "categoryRank": 6, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 74, "maintenance": 28, "payments": 20, "reliability": 42, "schema": 50, "security": 38, "transparency": 59 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "The JSON-RPC API documents every error code, its rate limits and the row cost of each method, and failed validation uses no quota. No working status page, SLA, machine-readable spec or official SDK was found. Tokens carry no scopes, and the free plan needs a credit card.", "bestFor": "Agents that need Domain Authority, backlink lists, link intersects, keyword volume and difficulty, search intent and ranking keywords at a low entry price, on a read-only data set.", "strengths": [ "Error reference lists 13 codes, each with HTTP status, a machine-readable `data.issue` and the parameter at fault", "Edge rate limits are published with numbers, and per-method 429 responses carry `Retry-After`", "Each method page states its row cost, and validation and quota checks run before any rows are used", "List methods take a `limit`, a paging token, sort keys and named filters", "Public plan prices from $20 a month for 3,000 rows, with per-row overage prices" ], "weaknesses": [ "No working public status page was found, and moz.statuspage.io reports the Moz Status page as inactive", "No downloadable OpenAPI or OpenRPC file, no llms.txt and no official SDK in the reviewed documentation", "Tokens have no scopes or read-only mode, and one token works on both the Data and Local MCP endpoints", "The free plan of 50 rows a month requires a valid credit card", "security.txt expired on 8 October 2026 (UTC), and its policy, acknowledgements and PGP key links return 404" ], "agentNotes": [ "Send a request `id` of at least 24 characters (letters, numbers and hyphens). A UUID works. Shorter ids are rejected with -32654.", "Stop on a 401. Ten 401 or 403 responses in five minutes block the caller for 30 minutes.", "On 429 with code -32658 wait the `Retry-After` seconds. On code -32650 no wait time is given, so back off exponentially.", "Call `quota.lookup` (free) before large pulls. List methods charge one row per result, and `limit` is capped at 50 on link lists.", "Poll `async.call.lookup` for `data.keyword.serp.generate`, and collect the result within 20 seconds of first seeing it complete." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 45.3 } ], "editorialScores": { "ergonomics": 74, "maintenance": 28, "payments": 20, "reliability": 42, "schema": 50, "security": 38, "transparency": 39 }, "provenanceScore": 79 }, "connect": { "http": "curl -X POST https://api.moz.com/jsonrpc -H \"x-moz-token: $MOZ_TOKEN\" -H \"Content-Type: application/json\" -d '{\"jsonrpc\":\"2.0\",\"id\":\"01a0458f-a14f-7254-aa11-7c6cb734e3f2\",\"method\":\"quota.lookup\",\"params\":{\"data\":{\"path\":\"api.limits.data.rows\"}}}'", "claudeCode": "claude mcp add moz-mcp-v1-data https://api.moz.com/mcp/v1/data --transport http --header \"Authorization: Bearer $YOUR_MOZ_TOKEN\" --scope user" }, "letme": { "capability": "https://letme.dev/seo.keywords", "tool": "https://letme.dev/moz-api" }, "area": "web-data", "unitPrices": [ { "item": "Free plan", "unit": "month", "usd": 0, "note": "50 rows a month, one request every ten seconds, credit card required" }, { "item": "Starter Medium", "unit": "month", "usd": 20, "note": "3,000 rows, no overage, plus 150 beta rows" }, { "item": "Starter Large", "unit": "month", "usd": 75, "note": "15,000 rows, plus 750 beta rows" }, { "item": "Growth Small", "unit": "month", "usd": 125, "note": "50,000 rows, plus 3,500 beta rows" }, { "item": "Growth Medium", "unit": "month", "usd": 250, "note": "120,000 rows, plus 8,400 beta rows" }, { "item": "Growth Large", "unit": "month", "usd": 500, "note": "500,000 rows, plus 35,000 beta rows" }, { "item": "Overage row, Starter Large", "unit": "record", "usd": 0.005, "note": "$5 per 1,000 rows" }, { "item": "Overage row, Growth Small", "unit": "record", "usd": 0.0025, "note": "$25 per 10,000 rows" }, { "item": "Overage row, Growth Medium", "unit": "record", "usd": 0.002, "note": "$20 per 10,000 rows" }, { "item": "Overage row, Growth Large", "unit": "record", "usd": 0.001, "note": "$10 per 10,000 rows" } ], "provenance": { "legalEntity": "SEOmoz, Inc.", "domain": "moz.com", "domainRegistered": "1998-04-29", "endpointOnVendorDomain": true, "terms": "https://moz.com/api-general-conditions", "privacy": "https://moz.com/privacy-policy", "statusPage": "", "changelog": "https://moz.com/whats-new/archive", "securityTxt": "expired", "checked": "2026-10-08", "notes": [ "The API General Conditions name SEOMOZ, INC., a Delaware corporation, as the contracting party. The site footer reads SEOMoz, Inc., a Ziff Davis company, and the terms of use give 360 Park Ave. S., 17th Floor, New York, NY 10010 for notices.", "The API answers at https://api.moz.com/jsonrpc and the MCP server at https://api.moz.com/mcp/v1/data, both on moz.com.", "moz.com/.well-known/security.txt gives a contact address and `Expiration: 2026-10-07T22:45:48-07:00`, about three hours before our fetch at 08:42 UTC on 8 October 2026. Its Policy, Acknowledgements and Encryption links (moz.com/security-policy, /hall-of-fame, /pgp-key.txt) return 404.", "moz.statuspage.io redirects to a page saying the Moz Status page is inactive and visible only to team members. status.moz.com and health.moz.com did not connect from our network.", "The changelog is Moz's product updates archive, which covers all products. The newest Moz API entry is the MCP server beta of 14 August 2026.", "RDAP for moz.com gives a registration date of 1998-04-29 and expiry in 2029.", "The privacy policy is effective 8 April 2025 and says Moz is owned by Ziff Davis, Inc. and takes part in the EU-U.S. Data Privacy Framework." ], "score": 79 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/moz-api.json", "live": { "slug": "moz-api", "probe": { "target": "https://api.moz.com/jsonrpc", "method": "get", "lastAt": "2026-10-08T18:20:35.41517576Z", "lastOk": true, "lastStatus": 404, "lastMs": 139, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 155, "p95ms24h": 393, "samples24h": 33, "samples30d": 33, "days": [ { "date": "2026-10-08", "probes": 33, "ok": 33 } ] }, "securityTxt": { "url": "https://moz.com/.well-known/security.txt", "state": "valid", "checkedAt": "2026-10-08T15:38:29.983500854Z" }, "pages": [ { "url": "https://moz.com/whats-new/archive", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:22:15.827097105Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "2df39f51de96" }, { "url": "https://moz.com/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:22:13.802124938Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "ef92cf739b3e" }, { "url": "https://moz.com/api-general-conditions", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:22:11.727645446Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "13b81cfc0ea8" } ], "updatedAt": "2026-10-08T18:22:15.827097105Z" } }, "answer": "Similarweb and Moz API score within a point of each other on agent readiness, 46 (D) and 45.3 (E). Moz API leads on reliability, agent ergonomics and payments \u0026 pricing.", "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": 566, "ranked": true, "rankOf": 629, "categoryRank": 5, "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": "2026-10-08T18:20:40.102205167Z", "lastOk": true, "lastStatus": 404, "lastMs": 103, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 154, "p95ms24h": 275, "samples24h": 33, "samples30d": 33, "days": [ { "date": "2026-10-08", "probes": 33, "ok": 33 } ] }, "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" } ], "updatedAt": "2026-10-08T18:20:40.102205167Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "SEOmoz, Inc.", "b": "Similarweb Ltd.", "name": "Vendor" }, { "a": "https://api.moz.com/jsonrpc", "b": "https://api.similarweb.com", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under the Moz API General Conditions (effective 12 August 2026 for new subscribers). Displaying Moz data to others requires attribution under the API legal page", "b": "Proprietary service under Similarweb's terms of use", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-08-14", "b": "2026-09-24", "name": "Last release" }, { "a": "2026-08-12", "b": "2025-03-19", "name": "Terms last updated" }, { "a": "2025-04-08", "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": "not found in the text", "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": "yes", "b": "not found in the text", "name": "Arbitration or class-action waiver" } ], "faq": [ { "answer": "Similarweb and Moz API score within a point of each other on agent readiness, 46 (D) and 45.3 (E). Moz API leads on reliability, agent ergonomics and payments \u0026 pricing.", "question": "Which is better for AI agents, Moz API or Similarweb?" }, { "answer": "Moz API needs an API key. Similarweb takes an API key or an OAuth sign-in.", "question": "Do Moz API and Similarweb need an API key?" }, { "answer": "Yes. Moz API has a hosted endpoint at https://api.moz.com/jsonrpc and Similarweb at https://api.similarweb.com.", "question": "Can an agent call Moz API and Similarweb without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 42 against 35", "Agent ergonomics, 74 against 67", "Payments \u0026 pricing, 20 against 5" ], "also": null, "goodFor": "Agents that need Domain Authority, backlink lists, link intersects, keyword volume and difficulty, search intent and ranking keywords at a low entry price, on a read-only data set.", "slug": "moz-api", "watchFor": "No working public status page was found, and moz.statuspage.io reports the Moz Status page as inactive" }, { "aheadOn": [ "Schema \u0026 documentation, 63 against 50", "Security \u0026 auth, 52 against 38", "Maintenance \u0026 community, 33 against 28" ], "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" } ], "job": { "capability": "seo.keywords", "name": "Seo keywords" }, "others": [ { "json": "https://www.anchorterminal.com/compare/ahrefs-vs-moz-api.json", "title": "Ahrefs vs Moz API", "url": "https://www.anchorterminal.com/compare/ahrefs-vs-moz-api" }, { "json": "https://www.anchorterminal.com/compare/ahrefs-vs-similarweb.json", "title": "Ahrefs vs Similarweb", "url": "https://www.anchorterminal.com/compare/ahrefs-vs-similarweb" }, { "json": "https://www.anchorterminal.com/compare/dataforseo-vs-moz-api.json", "title": "DataForSEO vs Moz API", "url": "https://www.anchorterminal.com/compare/dataforseo-vs-moz-api" }, { "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-moz-api.json", "title": "Manifold vs Moz API", "url": "https://www.anchorterminal.com/compare/manifold-mcp-vs-moz-api" }, { "json": "https://www.anchorterminal.com/compare/manifold-mcp-vs-similarweb.json", "title": "Manifold vs Similarweb", "url": "https://www.anchorterminal.com/compare/manifold-mcp-vs-similarweb" }, { "json": "https://www.anchorterminal.com/compare/moz-api-vs-semrush.json", "title": "Moz API vs Semrush API + MCP", "url": "https://www.anchorterminal.com/compare/moz-api-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" } ], "scores": [ { "by": 7, "edge": "moz-api", "key": "reliability", "moz-api": 42, "name": "Reliability", "similarweb": 35, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 13, "edge": "similarweb", "key": "schema", "moz-api": 50, "name": "Schema \u0026 documentation", "similarweb": 63, "weight": 13 }, { "by": 7, "edge": "moz-api", "key": "ergonomics", "moz-api": 74, "name": "Agent ergonomics", "similarweb": 67, "weight": 13 }, { "by": 14, "edge": "similarweb", "key": "security", "moz-api": 38, "name": "Security \u0026 auth", "similarweb": 52, "weight": 14 }, { "by": 15, "edge": "moz-api", "key": "payments", "moz-api": 20, "name": "Payments \u0026 pricing", "similarweb": 5, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 5, "edge": "similarweb", "key": "maintenance", "moz-api": 28, "name": "Maintenance \u0026 community", "similarweb": 33, "weight": 7 }, { "by": 1, "edge": "similarweb", "key": "transparency", "moz-api": 59, "name": "Transparency \u0026 trust", "similarweb": 60, "weight": 7 } ], "summary": "Similarweb and Moz API score within a point of each other on agent readiness, 46 (D) and 45.3 (E). Moz API leads on reliability, agent ergonomics and payments \u0026 pricing. Both do seo keywords.", "verdicts": { "moz-api": "The JSON-RPC API documents every error code, its rate limits and the row cost of each method, and failed validation uses no quota. No working status page, SLA, machine-readable spec or official SDK was found. Tokens carry no scopes, and the free plan needs a credit card.", "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." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/moz-api-vs-similarweb", "json": "https://www.anchorterminal.com/compare/moz-api-vs-similarweb.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/moz-api-vs-similarweb.md", "slim": "https://www.anchorterminal.com/compare/moz-api-vs-similarweb.min.md" }, "markdown": "Similarweb and Moz API score within a point of each other on agent readiness, 46 (D) and 45.3 (E). Moz API leads on reliability, agent ergonomics and payments \u0026 pricing. Both do seo keywords.\n\n- Moz API: grade E, 45.3/100, rank #571 of 629. Markdown https://www.anchorterminal.com/tools/moz-api.md · JSON https://www.anchorterminal.com/api/v1/tools/moz-api.json\n- Similarweb: grade D, 46/100, rank #566 of 629. 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### Moz API (E)\n\nGood for: Agents that need Domain Authority, backlink lists, link intersects, keyword volume and difficulty, search intent and ranking keywords at a low entry price, on a read-only data set.\n\nAhead on:\n- Reliability, 42 against 35\n- Agent ergonomics, 74 against 67\n- Payments \u0026 pricing, 20 against 5\n\nWatch for: No working public status page was found, and moz.statuspage.io reports the Moz Status page as inactive\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 50\n- Security \u0026 auth, 52 against 38\n- Maintenance \u0026 community, 33 against 28\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 | Moz API | Similarweb | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 42 | 35 | Moz API +7 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 50 | 63 | Similarweb +13 |\n| Agent ergonomics | 13% (16.2 this run) | 74 | 67 | Moz API +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 38 | 52 | Similarweb +14 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 5 | Moz API +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 28 | 33 | Similarweb +5 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 60 | Similarweb +1 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **45.3 · E** | **46 · D** | |\n\n## Facts side by side\n\n| Fact | Moz API | Similarweb |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | SEOmoz, Inc. | Similarweb Ltd. |\n| Hosted endpoint | `https://api.moz.com/jsonrpc` | `https://api.similarweb.com` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | Proprietary service under the Moz API General Conditions (effective 12 August 2026 for new subscribers). Displaying Moz data to others requires attribution under the API legal page | Proprietary service under Similarweb's terms of use |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2026-08-14 | 2026-09-24 |\n| Terms last updated | 2026-08-12 | 2025-03-19 |\n| Privacy policy last updated | 2025-04-08 | 2026-06-30 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | 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 | yes | not found in the text |\n\n## Verdicts\n\n**Moz API.** The JSON-RPC API documents every error code, its rate limits and the row cost of each method, and failed validation uses no quota. No working status page, SLA, machine-readable spec or official SDK was found. Tokens carry no scopes, and the free plan needs a credit card.\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### Moz API\n\n1. Send a request `id` of at least 24 characters (letters, numbers and hyphens). A UUID works. Shorter ids are rejected with -32654.\n2. Stop on a 401. Ten 401 or 403 responses in five minutes block the caller for 30 minutes.\n3. On 429 with code -32658 wait the `Retry-After` seconds. On code -32650 no wait time is given, so back off exponentially.\n4. Call `quota.lookup` (free) before large pulls. List methods charge one row per result, and `limit` is capped at 50 on link lists.\n5. Poll `async.call.lookup` for `data.keyword.serp.generate`, and collect the result within 20 seconds of first seeing it complete.\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, Moz API or Similarweb?\n\nSimilarweb and Moz API score within a point of each other on agent readiness, 46 (D) and 45.3 (E). Moz API leads on reliability, agent ergonomics and payments \u0026 pricing.\n\n### Do Moz API and Similarweb need an API key?\n\nMoz API needs an API key. Similarweb takes an API key or an OAuth sign-in.\n\n### Can an agent call Moz API and Similarweb without installing anything?\n\nYes. Moz API has a hosted endpoint at https://api.moz.com/jsonrpc and Similarweb at https://api.similarweb.com.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/moz-api-vs-similarweb.json, and with the fewest tokens: https://www.anchorterminal.com/compare/moz-api-vs-similarweb.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"moz-api\", \"b\": \"similarweb\"}`. From a terminal: `anchor compare moz-api similarweb`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/moz-api.json and https://www.anchorterminal.com/api/v1/tools/similarweb.json\n\n## Other comparisons with Moz API or Similarweb\n\n- [Ahrefs vs Moz API](https://www.anchorterminal.com/compare/ahrefs-vs-moz-api.md)\n- [Ahrefs vs Similarweb](https://www.anchorterminal.com/compare/ahrefs-vs-similarweb.md)\n- [DataForSEO vs Moz API](https://www.anchorterminal.com/compare/dataforseo-vs-moz-api.md)\n- [DataForSEO vs Similarweb](https://www.anchorterminal.com/compare/dataforseo-vs-similarweb.md)\n- [Manifold vs Moz API](https://www.anchorterminal.com/compare/manifold-mcp-vs-moz-api.md)\n- [Manifold vs Similarweb](https://www.anchorterminal.com/compare/manifold-mcp-vs-similarweb.md)\n- [Moz API vs Semrush API + MCP](https://www.anchorterminal.com/compare/moz-api-vs-semrush.md)\n- [Semrush API + MCP vs Similarweb](https://www.anchorterminal.com/compare/semrush-vs-similarweb.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Moz API vs Similarweb", "url": "" } ], "description": "Similarweb and Moz API score within a point of each other on agent readiness, 46 (D) and 45.3 (E). Moz API leads on reliability, agent ergonomics and payments \u0026 pricing. Both do seo keywords. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Moz API E 45.3", "Similarweb D 46", "scores" ], "h1": "Moz API vs Similarweb", "image": "https://www.anchorterminal.com/assets/og/compare-moz-api-vs-similarweb.png", "path": "/compare/moz-api-vs-similarweb", "published": "2026-10-01", "section": "tools", "title": "Moz API vs Similarweb for AI agents, E 45.3 vs D 46 | Anchor Terminal", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/moz-api-vs-similarweb" }, "tokens": { "markdown": 2000, "slim": 680 }, "version": 1 }