{ "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": "Coresignal API + MCP scores 62.9 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.", "b": { "slug": "coresignal", "name": "Coresignal API + MCP", "vendor": "Coresignal", "vendorUrl": "https://coresignal.com", "kind": "http-api", "category": "lead-data", "summary": "Company, employee and job posting data collected from the public web, queried with filters or Elasticsearch DSL and pulled by ID, with a real-time employee lookup, profile-change webhooks and a natural-language Agentic Search API.", "url": "https://www.anchorterminal.com/tools/coresignal", "markdownUrl": "https://www.anchorterminal.com/tools/coresignal.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/coresignal.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/coresignal.json", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.coresignal.com/cdapi", "packages": [], "auth": "mixed", "authNotes": "`apikey` header on REST. Hosted MCP v2 at mcp.coresignal.com uses OAuth 2.1 through the Coresignal dashboard and looks up the team's key server-side, so no key sits in the client.", "pricing": "paid", "pricingNotes": "7-day free trial with 2,000 credits. Monthly plans Mini $49 (2,500 credits), Starter $199 (12,000), Pro $499 (35,000), Growth $1,000 (150,000), Premium $1,500 (1,000,000), Scale $3,000 (4,000,000), Elite $5,000 (10,000,000). Annual plans are 10 per cent off from Starter up. Search is free. Collecting a record costs 1 credit for jobs and posts, 10 for base or clean company and employee records, 20 for multi-source records, 12 for real-time employee. Agentic Search costs 20 (fast) or 100 (reasoning) (https://coresignal.com/pricing/).", "priceSummary": "$49 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 mention in the API docs, MCP docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": 5, "popularity": { "githubStars": 2, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.coresignal.com", "llmsTxt": "https://docs.coresignal.com/llms.txt", "openapi": "https://api.coresignal.com/cdapi/openapi.json", "registryName": "com.coresignal/mcp", "capabilities": [ "lead.search", "lead.enrichment", "email.finder", "data.company", "data.person" ], "tags": [ "lead-search", "enrichment", "hosted", "card-required", "mcp", "llms-txt", "openapi", "webhooks", "async-jobs", "closed-source" ], "lastRelease": "2026-08-07", "graded": true, "anchor": { "graded": true, "score": 62.9, "grade": "B", "agentReady": false, "rank": 439, "ranked": true, "rankOf": 1076, "categoryRank": 4, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 73, "maintenance": 82, "payments": 20, "reliability": 55, "schema": 86, "security": 58, "transparency": 71 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Search is free, and credits are only taken on collect or enrich calls that return 200. Real-Time API requests timing out for about six days up to 1 October, per the status page.", "bestFor": "Company and workforce research, headcount history and hiring signals at volume, and for pipelines that want raw records.", "strengths": [ "Search is free, and credits are only taken on collect or enrich calls that return 200", "Every plan price and per-endpoint credit cost is public", "Hosted MCP with 5 tools, OAuth 2.1 and a confirmation step before large pulls", "Monthly release notes with dated entries and flagged breaking changes", "Privacy policy covers people in the datasets, with a five-year retention cap" ], "weaknesses": [ "Real-Time API requests timing out for about six days up to 1 October, per the status page", "Main search takes Elasticsearch DSL, a free-form JSON body", "7-day trial with a card per the 30 September check, and no free tier", "Terms name Deeptrace Inc. while the privacy policy names Binary House LLC", "Breaking changes in August 2026 to Agentic Search and Multi-source Jobs, announced in release notes with no stated notice period" ], "agentNotes": [ "Search for IDs first (free), then collect only the records you need", "Use base records at 10 credits when you don't need the 20-credit multi-source fields", "Use MCP v2 at /mcp/v2. The older /mcp endpoint will be deprecated", "Treat a 402 as out of credits, not a transient error", "Expect no work emails for EEA and UK people from the MCP email tool" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 62.9 } ], "editorialScores": { "ergonomics": 73, "maintenance": 82, "payments": 20, "reliability": 55, "schema": 86, "security": 58, "transparency": 55 }, "provenanceScore": 87 }, "connect": { "http": "curl \"https://api.coresignal.com/cdapi/v2/company_multi_source/enrich?enrich_query=stripe.com\" -H \"apikey: $CORESIGNAL_API_KEY\"", "claudeCode": "claude mcp add --transport http coresignal https://mcp.coresignal.com/mcp/v2" }, "letme": { "capability": "https://letme.dev/lead.search", "tool": "https://letme.dev/coresignal" }, "area": "web-data", "unitPrices": [ { "item": "Mini plan", "unit": "month", "usd": 49, "note": "2,500 credits" }, { "item": "Starter plan", "unit": "month", "usd": 199, "note": "12,000 credits" }, { "item": "Pro plan", "unit": "month", "usd": 499, "note": "35,000 credits, adds contact enrichment" }, { "item": "Growth plan", "unit": "month", "usd": 1000, "note": "150,000 credits" }, { "item": "Multi-source company or employee record", "unit": "record", "usd": 0.285, "note": "20 credits at Pro plan rates ($499 for 35,000 credits)" } ], "provenance": { "legalEntity": "Deeptrace Inc.", "domain": "coresignal.com", "domainRegistered": "2014-12-16", "endpointOnVendorDomain": true, "terms": "https://coresignal.com/terms-and-conditions/", "privacy": "https://coresignal.com/privacy-policy/", "statusPage": "https://status.coresignal.com", "changelog": "https://docs.coresignal.com/release-notes", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "The terms and conditions name Deeptrace Inc. (Lewes, Delaware) as the contracting company for Coresignal", "The privacy policy, updated 25 August 2026, names Binary House LLC as the data controller and lists Deeptrace Inc. as a processor" ], "score": 87 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/coresignal.json", "live": { "slug": "coresignal", "probe": { "target": "https://api.coresignal.com/cdapi", "method": "get", "lastAt": "2026-10-14T09:41:47.335933501Z", "lastOk": true, "lastStatus": 404, "lastMs": 79, "authRequired": false, "uptime24h": 100, "uptime30d": 99.43, "p50ms24h": 73, "p95ms24h": 164, "samples24h": 248, "samples30d": 3525, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 252 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "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 } ], "outages": [ { "start": "2026-10-05T05:02:39.72752943Z", "end": "2026-10-05T06:45:00.818712073Z", "note": "HTTP 503 server error" } ] }, "vendorStatus": { "page": "https://status.coresignal.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-14T08:53:00.144677379Z" }, "versions": [ { "registry": "mcp-registry", "name": "com.coresignal/mcp", "version": "2.0.0", "seenAt": "2026-10-14T04:18:30.41681267Z" } ], "securityTxt": { "url": "https://coresignal.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-13T15:46:00.661972625Z" }, "llmsTxt": { "url": "https://docs.coresignal.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-13T14:11:18.857318849Z" }, "domain": { "domain": "coresignal.com", "registered": "2014-12-16", "source": "https://rdap.verisign.com/com/v1/domain/coresignal.com", "checkedAt": "2026-10-11T13:14:49.851889147Z" }, "pages": [ { "url": "https://docs.coresignal.com/release-notes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-13T20:14:31.51510425Z", "changedAt": "2026-10-08T18:18:31.957477618Z", "fingerprint": "cd2325892a8d" }, { "url": "https://coresignal.com/pricing/", "kind": "pricing", "status": 304, "checkedAt": "2026-10-13T20:11:58.286462854Z", "changedAt": "2026-10-09T18:34:22.355790651Z", "fingerprint": "ecc8378af48a" }, { "url": "https://coresignal.com/privacy-policy/", "kind": "privacy", "status": 304, "checkedAt": "2026-10-13T20:12:00.369114149Z", "changedAt": "2026-10-02T15:18:35.054977183Z", "fingerprint": "777e30111f81" }, { "url": "https://coresignal.com/terms-and-conditions/", "kind": "terms", "status": 304, "checkedAt": "2026-10-13T20:12:02.381515279Z", "changedAt": "2026-10-02T15:18:37.038598322Z", "fingerprint": "582fd42b69c8" } ], "updatedAt": "2026-10-14T09:41:47.335933501Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "HubSpot, Inc.", "b": "Coresignal", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.coresignal.com/cdapi", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Paid", "b": "Paid", "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": "none", "name": "Licence" }, { "a": "none", "b": "5", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "not listed", "b": "com.coresignal/mcp", "name": "MCP registry" }, { "a": "2025-12-08", "b": "2026-08-07", "name": "Last release" }, { "a": "2025-05-30", "b": "2022-02-21", "name": "Terms last updated" }, { "a": "2026-08-31", "b": "2026-08-25", "name": "Privacy policy last updated" }, { "a": "yes", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not found in the text", "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": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "2 stars", "name": "Popularity" }, { "a": "none", "b": "3.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Coresignal API + MCP scores 62.9 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.", "question": "Which is better for AI agents, Clearbit or Coresignal API + MCP?" }, { "answer": "Clearbit needs an API key. Coresignal API + MCP takes an API key or an OAuth sign-in.", "question": "Do Clearbit and Coresignal API + MCP need an API key?" }, { "answer": "No hosted endpoint is listed for Clearbit. Coresignal API + MCP has a hosted endpoint at https://api.coresignal.com/cdapi.", "question": "Can an agent call Clearbit and Coresignal 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, 55 against 30", "Schema \u0026 documentation, 86 against 0", "Agent ergonomics, 73 against 0", "Security \u0026 auth, 58 against 8", "Payments \u0026 pricing, 20 against 0", "Maintenance \u0026 community, 82 against 4", "Transparency \u0026 trust, 71 against 66" ], "also": [ "A hosted endpoint, with nothing to install" ], "goodFor": "Company and workforce research, headcount history and hiring signals at volume, and for pipelines that want raw records.", "slug": "coresignal", "watchFor": "Real-Time API requests timing out for about six days up to 1 October, per the status page" } ], "job": { "capability": "lead.enrichment", "name": "Lead enrichment" }, "others": [ { "json": "https://www.anchorterminal.com/compare/apollo-vs-coresignal.json", "title": "Apollo API + MCP vs Coresignal API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-coresignal" }, { "json": "https://www.anchorterminal.com/compare/clay-vs-coresignal.json", "title": "Clay vs Coresignal API + MCP", "url": "https://www.anchorterminal.com/compare/clay-vs-coresignal" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-crustdata.json", "title": "Coresignal API + MCP vs Crustdata API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-crustdata" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-enrich-layer.json", "title": "Coresignal API + MCP vs Enrich Layer API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-enrich-layer" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource.json", "title": "Coresignal API + MCP vs Explorium AgentSource", "url": "https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-fullenrich.json", "title": "Coresignal API + MCP vs FullEnrich API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-fullenrich" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-fuse-mcp.json", "title": "Coresignal API + MCP vs Fuse MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-fuse-mcp" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-gojiberry.json", "title": "Coresignal API + MCP vs Gojiberry", "url": "https://www.anchorterminal.com/compare/coresignal-vs-gojiberry" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-hunter.json", "title": "Coresignal API + MCP vs Hunter API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-hunter" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-leadmagic.json", "title": "Coresignal API + MCP vs LeadMagic API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-leadmagic" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-lusha.json", "title": "Coresignal API + MCP vs Lusha API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-lusha" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-people-data-labs.json", "title": "Coresignal API + MCP vs People Data Labs", "url": "https://www.anchorterminal.com/compare/coresignal-vs-people-data-labs" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-prospeo.json", "title": "Coresignal API + MCP vs Prospeo API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-prospeo" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-rocketreach.json", "title": "Coresignal API + MCP vs RocketReach API", "url": "https://www.anchorterminal.com/compare/coresignal-vs-rocketreach" }, { "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/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-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/clearbit-vs-zoominfo.json", "title": "Clearbit vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-zoominfo" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-dropcontact.json", "title": "Coresignal API + MCP vs Dropcontact API + MCP", "url": "https://www.anchorterminal.com/compare/coresignal-vs-dropcontact" }, { "json": "https://www.anchorterminal.com/compare/coresignal-vs-fullcontact.json", "title": "Coresignal API + MCP vs FullContact", "url": "https://www.anchorterminal.com/compare/coresignal-vs-fullcontact" } ], "scores": [ { "by": 25, "clearbit": 30, "coresignal": 55, "edge": "coresignal", "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 86, "clearbit": 0, "coresignal": 86, "edge": "coresignal", "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 73, "clearbit": 0, "coresignal": 73, "edge": "coresignal", "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 50, "clearbit": 8, "coresignal": 58, "edge": "coresignal", "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 20, "clearbit": 0, "coresignal": 20, "edge": "coresignal", "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 78, "clearbit": 4, "coresignal": 82, "edge": "coresignal", "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 5, "clearbit": 66, "coresignal": 71, "edge": "coresignal", "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Coresignal API + MCP scores 62.9 (B) 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.", "coresignal": "Search is free, and credits are only taken on collect or enrich calls that return 200. Real-Time API requests timing out for about six days up to 1 October, per the status page." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/clearbit-vs-coresignal", "json": "https://www.anchorterminal.com/compare/clearbit-vs-coresignal.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/clearbit-vs-coresignal.md", "slim": "https://www.anchorterminal.com/compare/clearbit-vs-coresignal.min.md" }, "markdown": "Coresignal API + MCP scores 62.9 (B) 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- Coresignal API + MCP: grade B, 62.9/100, rank #439 of 1076. Markdown https://www.anchorterminal.com/tools/coresignal.md · JSON https://www.anchorterminal.com/api/v1/tools/coresignal.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### Coresignal API + MCP (B)\n\nGood for: Company and workforce research, headcount history and hiring signals at volume, and for pipelines that want raw records.\n\nAhead on:\n- Reliability, 55 against 30\n- Schema \u0026 documentation, 86 against 0\n- Agent ergonomics, 73 against 0\n- Security \u0026 auth, 58 against 8\n- Payments \u0026 pricing, 20 against 0\n- Maintenance \u0026 community, 82 against 4\n- Transparency \u0026 trust, 71 against 66\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: Real-Time API requests timing out for about six days up to 1 October, per the status page\n\n\n## Score by category\n\n| Category | Weight | Clearbit | Coresignal API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 30 | 55 | Coresignal API + MCP +25 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 0 | 86 | Coresignal API + MCP +86 |\n| Agent ergonomics | 13% (16.2 this run) | 0 | 73 | Coresignal API + MCP +73 |\n| Security \u0026 auth | 14% (17.5 this run) | 8 | 58 | Coresignal API + MCP +50 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 0 | 20 | Coresignal API + MCP +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 4 | 82 | Coresignal API + MCP +78 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 66 | 71 | Coresignal API + MCP +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **13.5 · F** | **62.9 · B** | |\n\n## Facts side by side\n\n| Fact | Clearbit | Coresignal API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | HubSpot, Inc. | Coresignal |\n| Hosted endpoint | no (local only) | `https://api.coresignal.com/cdapi` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Paid | Paid |\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 | none |\n| Tools exposed | none | 5 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| MCP registry | not listed | `com.coresignal/mcp` |\n| Last release | 2025-12-08 | 2026-08-07 |\n| Terms last updated | 2025-05-30 | 2022-02-21 |\n| Privacy policy last updated | 2026-08-31 | 2026-08-25 |\n| Customer content may train models | yes | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | not found in the text | not found in the text |\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 | not found in the text |\n| Popularity | none | 2 stars |\n| Agent reviews | none | 3.5/5 (2) |\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**Coresignal API + MCP.** Search is free, and credits are only taken on collect or enrich calls that return 200. Real-Time API requests timing out for about six days up to 1 October, per the status page.\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### Coresignal API + MCP\n\n1. Search for IDs first (free), then collect only the records you need\n2. Use base records at 10 credits when you don't need the 20-credit multi-source fields\n3. Use MCP v2 at /mcp/v2. The older /mcp endpoint will be deprecated\n4. Treat a 402 as out of credits, not a transient error\n5. Expect no work emails for EEA and UK people from the MCP email tool\n\n## Questions\n\n### Which is better for AI agents, Clearbit or Coresignal API + MCP?\n\nCoresignal API + MCP scores 62.9 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.\n\n### Do Clearbit and Coresignal API + MCP need an API key?\n\nClearbit needs an API key. Coresignal API + MCP takes an API key or an OAuth sign-in.\n\n### Can an agent call Clearbit and Coresignal API + MCP without installing anything?\n\nNo hosted endpoint is listed for Clearbit. Coresignal API + MCP has a hosted endpoint at https://api.coresignal.com/cdapi.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/clearbit-vs-coresignal.json, and with the fewest tokens: https://www.anchorterminal.com/compare/clearbit-vs-coresignal.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"clearbit\", \"b\": \"coresignal\"}`. From a terminal: `anchor compare clearbit coresignal`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/clearbit.json and https://www.anchorterminal.com/api/v1/tools/coresignal.json\n\n## Other comparisons with Clearbit or Coresignal API + MCP\n\n- [Apollo API + MCP vs Coresignal API + MCP](https://www.anchorterminal.com/compare/apollo-vs-coresignal.md)\n- [Clay vs Coresignal API + MCP](https://www.anchorterminal.com/compare/clay-vs-coresignal.md)\n- [Coresignal API + MCP vs Crustdata API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-crustdata.md)\n- [Coresignal API + MCP vs Enrich Layer API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-enrich-layer.md)\n- [Coresignal API + MCP vs Explorium AgentSource](https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource.md)\n- [Coresignal API + MCP vs FullEnrich API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-fullenrich.md)\n- [Coresignal API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/coresignal-vs-fuse-mcp.md)\n- [Coresignal API + MCP vs Gojiberry](https://www.anchorterminal.com/compare/coresignal-vs-gojiberry.md)\n- [Coresignal API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-hunter.md)\n- [Coresignal API + MCP vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-leadmagic.md)\n- [Coresignal API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-lusha.md)\n- [Coresignal API + MCP vs People Data Labs](https://www.anchorterminal.com/compare/coresignal-vs-people-data-labs.md)\n- [Coresignal API + MCP vs Prospeo API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-prospeo.md)\n- [Coresignal API + MCP vs RocketReach API](https://www.anchorterminal.com/compare/coresignal-vs-rocketreach.md)\n- [Coresignal API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/coresignal-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 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- [Clearbit vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/clearbit-vs-zoominfo.md)\n- [Coresignal API + MCP vs Dropcontact API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-dropcontact.md)\n- [Coresignal API + MCP vs FullContact](https://www.anchorterminal.com/compare/coresignal-vs-fullcontact.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 Coresignal API + MCP", "url": "" } ], "description": "Coresignal scores 62.9 (B) to Clearbit's 13.5 (F) for lead enrichment. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Clearbit F 13.5", "Coresignal API + MCP B 62.9", "scores" ], "h1": "Clearbit vs Coresignal API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-clearbit-vs-coresignal.png", "path": "/compare/clearbit-vs-coresignal", "published": "2026-10-01", "section": "tools", "title": "Clearbit vs Coresignal for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-14", "url": "https://www.anchorterminal.com/compare/clearbit-vs-coresignal" }, "tokens": { "markdown": 2550, "slim": 630 }, "version": 1 }