{ "data": { "a": { "slug": "clearbit", "name": "Clearbit", "vendor": "HubSpot, Inc.", "vendorUrl": "https://clearbit.com", "kind": "http-api", "category": "lead-data", "summary": "Clearbit is a B2B data provider for company, contact and IP intelligence, acquired by HubSpot. It still runs enrichment, reveal and prospecting APIs for existing customers, and HubSpot's Breeze Intelligence carries its data for new buyers.", "url": "https://www.anchorterminal.com/tools/clearbit", "markdownUrl": "https://www.anchorterminal.com/tools/clearbit.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/clearbit.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/clearbit.json", "license": "Proprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brand", "transports": [ "http" ], "packages": [], "auth": "api-key", "authNotes": "API access is for existing Clearbit customers through their dashboard, and dashboard.clearbit.com/docs redirects to a login. The home page links only to a customer login, with no sign-up for new customers (checked 2026-10-14).", "pricing": "paid", "pricingNotes": "No public prices. clearbit.com/pricing redirects to the home page. The free tools (Free Clearbit Platform, Weekly Visitor Report, Clearbit Connect, TAM Calculator and the free Slack integration) were discontinued on 30 April 2025, and the free Logo API was shut down on 8 December 2025 (https://clearbit.com/changelog, checked 2026-10-14).", "priceSummary": "Paid", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 on the public Clearbit pages (checked 2026-10-14).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-14" }, "capabilities": [ "lead.enrichment", "data.company" ], "tags": [ "hosted", "not-for-agents", "sales-led", "closed-source", "enrichment", "status-page", "soc2" ], "lastRelease": "2025-12-08", "graded": true, "anchor": { "graded": true, "score": 13.5, "grade": "F", "agentReady": false, "rank": 1056, "ranked": true, "rankOf": 1076, "categoryRank": 19, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 0, "maintenance": 4, "payments": 0, "reliability": 30, "schema": 0, "security": 8, "transparency": 66 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-14" }, "negative": 0, "verdict": "There is no public API or MCP server an outside agent can call today. Clearbit's APIs still run for existing customers behind a login, and its free tools and Logo API were retired in 2025. HubSpot's Breeze Intelligence is the route for new buyers, through HubSpot rather than Clearbit.", "bestFor": "Only for teams that already hold a Clearbit contract.", "strengths": [ "Public status page with 22 components and incident history", "Dated sunset notices with months of warning, such as the Logo API", "Privacy policy updated 31 August 2026 and a sub-processor page with locations" ], "weaknesses": [ "No public API or MCP server an outside agent can call", "No sign-up or public prices, and the home page links only to a customer login", "Free tools retired on 30 April 2025 and the Logo API after 8 December 2025", "No security.txt, and the help centre sits behind a bot check" ], "agentNotes": [ "Don't plan to call Clearbit. Hand the task to a person with an existing Clearbit account, or use HubSpot's Breeze Intelligence through HubSpot", "Replace logo.clearbit.com links, which stopped working after 8 December 2025" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "F", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 13.5 } ], "editorialScores": { "ergonomics": 0, "maintenance": 4, "payments": 0, "reliability": 30, "schema": 0, "security": 8, "transparency": 61 }, "provenanceScore": 71 }, "letme": { "capability": "https://letme.dev/lead.enrichment", "tool": "https://letme.dev/clearbit" }, "area": "web-data", "provenance": { "legalEntity": "HubSpot, Inc.", "domain": "clearbit.com", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://clearbit.com/legal", "privacy": "https://clearbit.com/privacy-policy", "statusPage": "https://status.clearbit.com", "changelog": "https://clearbit.com/changelog", "securityTxt": "none", "checked": "2026-10-14", "notes": [ "The terms were last updated on 30 May 2025 and the privacy policy on 31 August 2026. Both name HubSpot, Inc. under its Clearbit brand.", "clearbit.com/.well-known/security.txt answers with an HTML page, not a security.txt file.", "help.clearbit.com answered with a Cloudflare bot check, so its article on buying Clearbit wasn't read. A search result quoted it as saying new standalone subscriptions are no longer offered, which we couldn't confirm first-hand.", "status.clearbit.com is an Atlassian Statuspage (clearbit.statuspage.io).", "No RDAP lookup was made for clearbit.com." ], "score": 71 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/clearbit.json", "live": { "slug": "clearbit", "vendorStatus": { "page": "https://status.clearbit.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-14T09:38:56.324557038Z" }, "updatedAt": "2026-10-14T09:38:56.324557038Z" } }, "answer": "ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.", "b": { "slug": "zoominfo", "name": "ZoomInfo API + MCP", "vendor": "ZoomInfo Technologies LLC", "vendorUrl": "https://www.zoominfo.com", "kind": "http-api", "category": "lead-data", "summary": "ZoomInfo sells B2B company, contact and buying-signal data. Agents search and enrich records through a REST API with OAuth 2.0, a hosted MCP server and the GTM CLI, all drawing on one credit pool.", "url": "https://www.anchorterminal.com/tools/zoominfo", "markdownUrl": "https://www.anchorterminal.com/tools/zoominfo.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/zoominfo.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/zoominfo.json", "repo": "https://github.com/Zoominfo/gtm-ai-cli", "license": "Proprietary service under ZoomInfo's Licence Terms and Conditions. The GTM CLI on GitHub is MIT", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.zoominfo.com/gtm", "packages": [ { "registry": "npm", "name": "@zoominfo/gtm-ai-cli" } ], "auth": "oauth", "authNotes": "OAuth 2.0 only, with no static API key. A person creates an app in the Developer tab of GTM.ai (self-serve) or the ZoomInfo Developer Portal (Enterprise) and picks from 20 scopes such as `api:data:contact` and `api:audience:manage`. The authorisation code grant with PKCE acts for a signed-in user. The client credentials grant at `https://api.zoominfo.com/gtm/oauth/v1/token` runs as a named integration user, and the sample token lasts 1,000 seconds. The MCP server at `https://mcp.zoominfo.com/mcp` takes OAuth sign-in in a browser, and clients register themselves. Partner apps for other organisations need membership of the partner programme and a review. Admins switch API access on or off per user.", "pricing": "freemium", "pricingNotes": "Free account at gtm.ai with 1,000 data credits and 1,000 AI credits, no card, covering the API, MCP server and CLI at 5 requests a second and 5 apps. After that, pay-as-you-go top-ups from $20 with no contract or seat fee. One data credit buys one newly enriched company, contact or intent record, shown at $0.38 a credit on the $1,000 spend tier, with volume discounts. AI credits are a flat $0.05 each, and an account or contact research call uses about 5 to 15. Search, lookup and similar-record calls are free. Enterprise packages are priced by sales (https://gtm.ai/pricing).", "priceSummary": "$0.38 / credit", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API docs, the OpenAPI files, the MCP docs or the pricing page (checked 2026-10-09).", "endpoints": [] }, "toolCount": 26, "popularity": { "githubStars": null, "npmWeekly": 534, "pypiWeekly": null, "asOf": "2026-10-09" }, "docsUrl": "https://docs.gtm.ai/docs/overview", "llmsTxt": "https://docs.gtm.ai/llms.txt", "openapi": "https://docs.gtm.ai/openapi/openapi-data-v1.yaml", "capabilities": [ "lead.search", "lead.enrichment", "data.company", "data.person" ], "tags": [ "hosted", "freemium", "mcp", "oauth", "openapi", "llms-txt", "cli", "closed-source", "enterprise", "lead-search", "enrichment", "intent-data", "status-page", "soc2" ], "lastRelease": "2026-10-02", "graded": true, "anchor": { "graded": true, "score": 72.2, "grade": "BB", "agentReady": true, "rank": 113, "ranked": true, "rankOf": 1076, "categoryRank": 1, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 71, "maintenance": 76, "payments": 40, "reliability": 87, "schema": 84, "security": 65, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-09" }, "negative": 0, "verdict": "Search, lookup and similar-record calls cost no credits, and a free account with 1,000 data and 1,000 AI credits needs no card. OAuth carries 20 scopes and limits are published per package. The Licence Terms and Conditions bar disclosing benchmark results, and the two documentation sites disagree on batch sizes and rate-limit headers.", "bestFor": "Sales and marketing agents that need company, contact, intent and business-event data from one vendor, with free search before paid enrichment.", "strengths": [ "Free account with 1,000 data credits and 1,000 AI credits, no card, covering the API, MCP server and CLI", "Search, Lookup, Find Similar and Find Recommended Contacts consume no credits. Credits apply to enrichment and AI research", "OAuth 2.0 with PKCE or client credentials and 20 scopes, with read and manage scopes separated", "Rate limits published per package, with `Retry-After` and `X-RateLimit-Rejected-Bucket` on 429. Rejected requests do not consume quota", "Eight public OpenAPI files, `llms.txt` and Markdown twins on both documentation sites" ], "weaknesses": [ "The Licence Terms and Conditions bar disclosing benchmark results and automated access outside ZoomInfo's own tools without written approval", "The documentation disagrees with itself. One page says rate-limit headers are not returned, another lists them. Enrichment batches are 25 on one site and 10 on the other", "No idempotency keys found, and ZoomInfo shows no cost preview before a paid MCP call", "No official SDKs. The docs direct developers to generate a client from the OpenAPI file", "Records Under Management, which makes repeat enrichment free for 12 months, does not apply to the free tier per the pricing page" ], "agentNotes": [ "Call Lookup first and pass the returned IDs to Search. Unknown industry, metro or topic strings are rejected with a 422", "Search before Enrich. Search is free, and each newly enriched record costs one data credit", "Request only the scopes the task needs in the `scope` parameter of the token call. Omitting it grants every scope configured on the app", "On 429 read `X-RateLimit-Rejected-Bucket` and wait for `Retry-After`. An exhausted hourly window can mean a wait of several hundred seconds", "Turn off model training in the AI client before connecting the MCP server. ZoomInfo prohibits MCP data being used for training" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 72.2 } ], "editorialScores": { "ergonomics": 71, "maintenance": 76, "payments": 40, "reliability": 87, "schema": 84, "security": 65, "transparency": 65 }, "provenanceScore": 85 }, "connect": { "install": "npm install -g @zoominfo/gtm-ai-cli", "http": "curl -X POST https://api.zoominfo.com/gtm/oauth/v1/token -u \"$ZOOMINFO_CLIENT_ID:$ZOOMINFO_CLIENT_SECRET\" -H \"Content-Type: application/x-www-form-urlencoded\" -H \"Accept: application/json\" -d \"grant_type=client_credentials\"", "claudeCode": "claude mcp add --transport http zoominfo https://mcp.zoominfo.com/mcp", "config": { "mcpServers": { "zoominfo": { "url": "https://mcp.zoominfo.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/lead.search", "tool": "https://letme.dev/zoominfo" }, "area": "web-data", "unitPrices": [ { "item": "Data credit", "unit": "credit", "usd": 0.38, "note": "One newly enriched company, contact or intent record, at the $1,000 spend tier. Volume discounts apply" }, { "item": "AI credit", "unit": "credit", "usd": 0.05, "note": "Flat rate. Account or contact research usually uses 5 to 15 credits a call" } ], "provenance": { "legalEntity": "ZoomInfo Technologies LLC", "domain": "zoominfo.com", "domainRegistered": "2003-10-16", "endpointOnVendorDomain": true, "terms": "https://www.zoominfo.com/legal/ltc", "privacy": "https://www.zoominfo.com/legal/privacy-policy", "statusPage": "https://status.zoominfo.com", "changelog": "https://gtm.ai/releases", "securityTxt": "unknown", "checked": "2026-10-09", "notes": [ "The Licence Terms and Conditions (version 1 May 2025) name ZoomInfo Technologies LLC, a Delaware limited liability company, as the contracting entity outside the UK, Switzerland and the EEA. They govern services under an ordering document. Which terms a free GTM.ai signup accepts was not established, and the gtm.ai footer links only the website terms of use.", "The privacy policy (updated 13 October 2025, effective 20 October 2025) covers both the people in ZoomInfo's database and customers of the service, and gives 330 W Columbia Way, Floor 8, Vancouver, WA 98660 as the address.", "The API answers at api.zoominfo.com and the MCP server at mcp.zoominfo.com. The developer docs and self-serve signup are on gtm.ai and docs.gtm.ai, a second domain of the vendor's.", "https://www.zoominfo.com/.well-known/security.txt answered HTTP 500 on 2026-10-09, and https://gtm.ai/.well-known/security.txt answered 404.", "RDAP for zoominfo.com gives a registration date of 2003-10-16.", "An Artificial Intelligence Acceptable Use Policy (version 9 April 2026) supplements the terms and bars giving ZoomInfo data to external AI systems that may train on it." ], "score": 85 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/zoominfo.json", "live": { "slug": "zoominfo", "probe": { "target": "https://api.zoominfo.com/gtm", "method": "get", "lastAt": "2026-10-14T09:42:15.495915142Z", "lastOk": true, "lastStatus": 404, "lastMs": 162, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 153, "p95ms24h": 191, "samples24h": 248, "samples30d": 1258, "days": [ { "date": "2026-10-09", "probes": 169, "ok": 169 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 100, "ok": 100 } ] }, "vendorStatus": { "page": "https://status.zoominfo.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-14T09:39:49.009973013Z" }, "versions": [ { "registry": "github", "name": "Zoominfo/gtm-ai-cli", "version": "v2.1.1", "released": "2026-10-02", "seenAt": "2026-10-13T23:34:39.323108868Z" }, { "registry": "npm", "name": "@zoominfo/gtm-ai-cli", "version": "2.1.1", "seenAt": "2026-10-13T23:34:37.265314045Z" } ], "githubStars": 1, "npmWeekly": 51, "securityTxt": { "url": "https://zoominfo.com/.well-known/security.txt", "state": "unknown", "checkedAt": "2026-10-13T15:46:05.251742382Z" }, "llmsTxt": { "url": "https://docs.gtm.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-13T14:12:53.505824771Z" }, "domain": { "domain": "zoominfo.com", "registered": "2003-10-16", "source": "https://rdap.verisign.com/com/v1/domain/zoominfo.com", "checkedAt": "2026-10-11T13:26:52.143947308Z" }, "pages": [ { "url": "https://gtm.ai/releases", "kind": "changelog", "status": 200, "checkedAt": "2026-10-13T20:17:29.765496724Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "219a04237b54" }, { "url": "https://gtm.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-13T20:17:27.112378407Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "4d4c46dc3149" }, { "url": "https://www.zoominfo.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-13T20:34:04.837361252Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "5c095c502a06" }, { "url": "https://www.zoominfo.com/legal/ltc", "kind": "terms", "status": 200, "checkedAt": "2026-10-13T20:34:02.623600746Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "5a4df800687d" } ], "updatedAt": "2026-10-14T09:42:15.495915142Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "HubSpot, Inc.", "b": "ZoomInfo Technologies LLC", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.zoominfo.com/gtm", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "API key", "b": "OAuth", "name": "Auth" }, { "a": "Paid", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brand", "b": "Proprietary service under ZoomInfo's Licence Terms and Conditions. The GTM CLI on GitHub is MIT", "name": "Licence" }, { "a": "none", "b": "26", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2025-12-08", "b": "2026-10-02", "name": "Last release" }, { "a": "2025-05-30", "b": "no date given", "name": "Terms last updated" }, { "a": "2026-08-31", "b": "2025-10-13", "name": "Privacy policy last updated" }, { "a": "yes", "b": "yes, with an opt-out", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "534 npm/wk", "name": "Popularity" } ], "faq": [ { "answer": "ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.", "question": "Which is better for AI agents, Clearbit or ZoomInfo API + MCP?" }, { "answer": "Clearbit needs an API key. ZoomInfo API + MCP uses an OAuth sign-in.", "question": "Do Clearbit and ZoomInfo API + MCP need an API key?" }, { "answer": "No hosted endpoint is listed for Clearbit. ZoomInfo API + MCP has a hosted endpoint at https://api.zoominfo.com/gtm.", "question": "Can an agent call Clearbit and ZoomInfo API + MCP without installing anything?" } ], "goodFor": [ { "aheadOn": null, "also": null, "goodFor": "Only for teams that already hold a Clearbit contract.", "slug": "clearbit", "watchFor": "No public API or MCP server an outside agent can call" }, { "aheadOn": [ "Reliability, 87 against 30", "Schema \u0026 documentation, 84 against 0", "Agent ergonomics, 71 against 0", "Security \u0026 auth, 65 against 8", "Payments \u0026 pricing, 40 against 0", "Maintenance \u0026 community, 76 against 4", "Transparency \u0026 trust, 75 against 66" ], "also": [ "Agent-ready, a grade of BB or better", "A hosted endpoint, with nothing to install" ], "goodFor": "Sales and marketing agents that need company, contact, intent and business-event data from one vendor, with free search before paid enrichment.", "slug": "zoominfo", "watchFor": "The Licence Terms and Conditions bar disclosing benchmark results and automated access outside ZoomInfo's own tools without written approval" } ], "job": { "capability": "lead.enrichment", "name": "Lead enrichment" }, "others": [ { "json": "https://www.anchorterminal.com/compare/apollo-vs-zoominfo.json", "title": "Apollo API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/clay-vs-zoominfo.json", "title": "Clay vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/clay-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-zoominfo.json", "title": "Coresignal API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/crustdata-vs-zoominfo.json", "title": "Crustdata API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/crustdata-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/enrich-layer-vs-zoominfo.json", "title": "Enrich Layer API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/enrich-layer-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-zoominfo.json", "title": "Explorium AgentSource vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/fullenrich-vs-zoominfo.json", "title": "FullEnrich API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/fullenrich-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/fuse-mcp-vs-zoominfo.json", "title": "Fuse MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/fuse-mcp-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/gojiberry-vs-zoominfo.json", "title": "Gojiberry vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/gojiberry-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/hunter-vs-zoominfo.json", "title": "Hunter API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/hunter-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/leadmagic-vs-zoominfo.json", "title": "LeadMagic API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/leadmagic-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/lusha-vs-zoominfo.json", "title": "Lusha API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/lusha-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/people-data-labs-vs-zoominfo.json", "title": "People Data Labs vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/people-data-labs-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/prospeo-vs-zoominfo.json", "title": "Prospeo API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/prospeo-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/rocketreach-vs-zoominfo.json", "title": "RocketReach API vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/rocketreach-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-clearbit.json", "title": "Apollo API + MCP vs Clearbit", "url": "https://www.anchorterminal.com/compare/apollo-vs-clearbit" }, { "json": "https://www.anchorterminal.com/compare/clay-vs-clearbit.json", "title": "Clay vs Clearbit", "url": "https://www.anchorterminal.com/compare/clay-vs-clearbit" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-coresignal.json", "title": "Clearbit vs Coresignal API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-coresignal" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-crustdata.json", "title": "Clearbit vs Crustdata API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-crustdata" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-dropcontact.json", "title": "Clearbit vs Dropcontact API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-dropcontact" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-enrich-layer.json", "title": "Clearbit vs Enrich Layer API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-enrich-layer" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-explorium-agentsource.json", "title": "Clearbit vs Explorium AgentSource", "url": "https://www.anchorterminal.com/compare/clearbit-vs-explorium-agentsource" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-fullcontact.json", "title": "Clearbit vs FullContact", "url": "https://www.anchorterminal.com/compare/clearbit-vs-fullcontact" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-fullenrich.json", "title": "Clearbit vs FullEnrich API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-fullenrich" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-fuse-mcp.json", "title": "Clearbit vs Fuse MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-fuse-mcp" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-gojiberry.json", "title": "Clearbit vs Gojiberry", "url": "https://www.anchorterminal.com/compare/clearbit-vs-gojiberry" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-hunter.json", "title": "Clearbit vs Hunter API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-hunter" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-leadmagic.json", "title": "Clearbit vs LeadMagic API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-leadmagic" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-lusha.json", "title": "Clearbit vs Lusha API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-lusha" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-people-data-labs.json", "title": "Clearbit vs People Data Labs", "url": "https://www.anchorterminal.com/compare/clearbit-vs-people-data-labs" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-prospeo.json", "title": "Clearbit vs Prospeo API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-prospeo" }, { "json": "https://www.anchorterminal.com/compare/clearbit-vs-rocketreach.json", "title": "Clearbit vs RocketReach API", "url": "https://www.anchorterminal.com/compare/clearbit-vs-rocketreach" }, { "json": "https://www.anchorterminal.com/compare/dropcontact-vs-zoominfo.json", "title": "Dropcontact API + MCP vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/dropcontact-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/fullcontact-vs-zoominfo.json", "title": "FullContact vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/fullcontact-vs-zoominfo" } ], "scores": [ { "by": 57, "clearbit": 30, "edge": "zoominfo", "key": "reliability", "name": "Reliability", "weight": 16, "zoominfo": 87 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 84, "clearbit": 0, "edge": "zoominfo", "key": "schema", "name": "Schema \u0026 documentation", "weight": 13, "zoominfo": 84 }, { "by": 71, "clearbit": 0, "edge": "zoominfo", "key": "ergonomics", "name": "Agent ergonomics", "weight": 13, "zoominfo": 71 }, { "by": 57, "clearbit": 8, "edge": "zoominfo", "key": "security", "name": "Security \u0026 auth", "weight": 14, "zoominfo": 65 }, { "by": 40, "clearbit": 0, "edge": "zoominfo", "key": "payments", "name": "Payments \u0026 pricing", "weight": 10, "zoominfo": 40 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 72, "clearbit": 4, "edge": "zoominfo", "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7, "zoominfo": 76 }, { "by": 9, "clearbit": 66, "edge": "zoominfo", "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7, "zoominfo": 75 } ], "summary": "ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category. Both do lead enrichment.", "verdicts": { "clearbit": "There is no public API or MCP server an outside agent can call today. Clearbit's APIs still run for existing customers behind a login, and its free tools and Logo API were retired in 2025. HubSpot's Breeze Intelligence is the route for new buyers, through HubSpot rather than Clearbit.", "zoominfo": "Search, lookup and similar-record calls cost no credits, and a free account with 1,000 data and 1,000 AI credits needs no card. OAuth carries 20 scopes and limits are published per package. The Licence Terms and Conditions bar disclosing benchmark results, and the two documentation sites disagree on batch sizes and rate-limit headers." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/clearbit-vs-zoominfo", "json": "https://www.anchorterminal.com/compare/clearbit-vs-zoominfo.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/clearbit-vs-zoominfo.md", "slim": "https://www.anchorterminal.com/compare/clearbit-vs-zoominfo.min.md" }, "markdown": "ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category. Both do lead enrichment.\n\n- Clearbit: grade F, 13.5/100, rank #1056 of 1076. Markdown https://www.anchorterminal.com/tools/clearbit.md · JSON https://www.anchorterminal.com/api/v1/tools/clearbit.json\n- ZoomInfo API + MCP: grade BB, 72.2/100, rank #113 of 1076. Markdown https://www.anchorterminal.com/tools/zoominfo.md · JSON https://www.anchorterminal.com/api/v1/tools/zoominfo.json\n- Best lead, contact and company data APIs for AI agents: https://www.anchorterminal.com/best/lead-data/index.md\n- All 171 leads comparisons: https://www.anchorterminal.com/compare/lead-data/index.md\n\n## Which one, for what\n\n### Clearbit (F)\n\nGood for: Only for teams that already hold a Clearbit contract.\n\nWatch for: No public API or MCP server an outside agent can call\n\n### ZoomInfo API + MCP (BB)\n\nGood for: Sales and marketing agents that need company, contact, intent and business-event data from one vendor, with free search before paid enrichment.\n\nAhead on:\n- Reliability, 87 against 30\n- Schema \u0026 documentation, 84 against 0\n- Agent ergonomics, 71 against 0\n- Security \u0026 auth, 65 against 8\n- Payments \u0026 pricing, 40 against 0\n- Maintenance \u0026 community, 76 against 4\n- Transparency \u0026 trust, 75 against 66\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- A hosted endpoint, with nothing to install\n\nWatch for: The Licence Terms and Conditions bar disclosing benchmark results and automated access outside ZoomInfo's own tools without written approval\n\n\n## Score by category\n\n| Category | Weight | Clearbit | ZoomInfo API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 30 | 87 | ZoomInfo API + MCP +57 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 0 | 84 | ZoomInfo API + MCP +84 |\n| Agent ergonomics | 13% (16.2 this run) | 0 | 71 | ZoomInfo API + MCP +71 |\n| Security \u0026 auth | 14% (17.5 this run) | 8 | 65 | ZoomInfo API + MCP +57 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 0 | 40 | ZoomInfo API + MCP +40 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 4 | 76 | ZoomInfo API + MCP +72 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 66 | 75 | ZoomInfo API + MCP +9 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **13.5 · F** | **72.2 · BB** | |\n\n## Facts side by side\n\n| Fact | Clearbit | ZoomInfo API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | HubSpot, Inc. | ZoomInfo Technologies LLC |\n| Hosted endpoint | no (local only) | `https://api.zoominfo.com/gtm` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | API key | OAuth |\n| Pricing | Paid | Freemium |\n| x402 | no | no |\n| Licence | Proprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brand | Proprietary service under ZoomInfo's Licence Terms and Conditions. The GTM CLI on GitHub is MIT |\n| Tools exposed | none | 26 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2025-12-08 | 2026-10-02 |\n| Terms last updated | 2025-05-30 | no date given |\n| Privacy policy last updated | 2026-08-31 | 2025-10-13 |\n| Customer content may train models | yes | yes, with an opt-out |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | not found in the text | yes |\n| Popularity | none | 534 npm/wk |\n\n## Verdicts\n\n**Clearbit.** There is no public API or MCP server an outside agent can call today. Clearbit's APIs still run for existing customers behind a login, and its free tools and Logo API were retired in 2025. HubSpot's Breeze Intelligence is the route for new buyers, through HubSpot rather than Clearbit.\n\n**ZoomInfo API + MCP.** Search, lookup and similar-record calls cost no credits, and a free account with 1,000 data and 1,000 AI credits needs no card. OAuth carries 20 scopes and limits are published per package. The Licence Terms and Conditions bar disclosing benchmark results, and the two documentation sites disagree on batch sizes and rate-limit headers.\n\n## Before you call either\n\n### Clearbit\n\n1. Don't plan to call Clearbit. Hand the task to a person with an existing Clearbit account, or use HubSpot's Breeze Intelligence through HubSpot\n2. Replace logo.clearbit.com links, which stopped working after 8 December 2025\n\n### ZoomInfo API + MCP\n\n1. Call Lookup first and pass the returned IDs to Search. Unknown industry, metro or topic strings are rejected with a 422\n2. Search before Enrich. Search is free, and each newly enriched record costs one data credit\n3. Request only the scopes the task needs in the `scope` parameter of the token call. Omitting it grants every scope configured on the app\n4. On 429 read `X-RateLimit-Rejected-Bucket` and wait for `Retry-After`. An exhausted hourly window can mean a wait of several hundred seconds\n5. Turn off model training in the AI client before connecting the MCP server. ZoomInfo prohibits MCP data being used for training\n\n## Questions\n\n### Which is better for AI agents, Clearbit or ZoomInfo API + MCP?\n\nZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.\n\n### Do Clearbit and ZoomInfo API + MCP need an API key?\n\nClearbit needs an API key. ZoomInfo API + MCP uses an OAuth sign-in.\n\n### Can an agent call Clearbit and ZoomInfo API + MCP without installing anything?\n\nNo hosted endpoint is listed for Clearbit. ZoomInfo API + MCP has a hosted endpoint at https://api.zoominfo.com/gtm.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/clearbit-vs-zoominfo.json, and with the fewest tokens: https://www.anchorterminal.com/compare/clearbit-vs-zoominfo.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"clearbit\", \"b\": \"zoominfo\"}`. From a terminal: `anchor compare clearbit zoominfo`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/clearbit.json and https://www.anchorterminal.com/api/v1/tools/zoominfo.json\n\n## Other comparisons with Clearbit or ZoomInfo API + MCP\n\n- [Apollo API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/apollo-vs-zoominfo.md)\n- [Clay vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/clay-vs-zoominfo.md)\n- [Coresignal API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-zoominfo.md)\n- [Crustdata API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/crustdata-vs-zoominfo.md)\n- [Enrich Layer API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-zoominfo.md)\n- [Explorium AgentSource vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-zoominfo.md)\n- [FullEnrich API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/fullenrich-vs-zoominfo.md)\n- [Fuse MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/fuse-mcp-vs-zoominfo.md)\n- [Gojiberry vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/gojiberry-vs-zoominfo.md)\n- [Hunter API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/hunter-vs-zoominfo.md)\n- [LeadMagic API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/leadmagic-vs-zoominfo.md)\n- [Lusha API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/lusha-vs-zoominfo.md)\n- [People Data Labs vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/people-data-labs-vs-zoominfo.md)\n- [Prospeo API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/prospeo-vs-zoominfo.md)\n- [RocketReach API vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/rocketreach-vs-zoominfo.md)\n- [Apollo API + MCP vs Clearbit](https://www.anchorterminal.com/compare/apollo-vs-clearbit.md)\n- [Clay vs Clearbit](https://www.anchorterminal.com/compare/clay-vs-clearbit.md)\n- [Clearbit vs Coresignal API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-coresignal.md)\n- [Clearbit vs Crustdata API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-crustdata.md)\n- [Clearbit vs Dropcontact API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-dropcontact.md)\n- [Clearbit vs Enrich Layer API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-enrich-layer.md)\n- [Clearbit vs Explorium AgentSource](https://www.anchorterminal.com/compare/clearbit-vs-explorium-agentsource.md)\n- [Clearbit vs FullContact](https://www.anchorterminal.com/compare/clearbit-vs-fullcontact.md)\n- [Clearbit vs FullEnrich API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-fullenrich.md)\n- [Clearbit vs Fuse MCP](https://www.anchorterminal.com/compare/clearbit-vs-fuse-mcp.md)\n- [Clearbit vs Gojiberry](https://www.anchorterminal.com/compare/clearbit-vs-gojiberry.md)\n- [Clearbit vs Hunter API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-hunter.md)\n- [Clearbit vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-leadmagic.md)\n- [Clearbit vs Lusha API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-lusha.md)\n- [Clearbit vs People Data Labs](https://www.anchorterminal.com/compare/clearbit-vs-people-data-labs.md)\n- [Clearbit vs Prospeo API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-prospeo.md)\n- [Clearbit vs RocketReach API](https://www.anchorterminal.com/compare/clearbit-vs-rocketreach.md)\n- [Dropcontact API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/dropcontact-vs-zoominfo.md)\n- [FullContact vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/fullcontact-vs-zoominfo.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-14", "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": "Clearbit vs ZoomInfo API + MCP", "url": "" } ], "description": "ZoomInfo scores 72.2 (BB) to Clearbit's 13.5 (F) for lead enrichment. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Clearbit F 13.5", "ZoomInfo API + MCP BB 72.2", "scores" ], "h1": "Clearbit vs ZoomInfo API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-clearbit-vs-zoominfo.png", "path": "/compare/clearbit-vs-zoominfo", "published": "2026-10-01", "section": "tools", "title": "Clearbit vs ZoomInfo for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-14", "url": "https://www.anchorterminal.com/compare/clearbit-vs-zoominfo" }, "tokens": { "markdown": 2650, "slim": 680 }, "version": 1 }