{ "data": { "a": { "slug": "apollo", "name": "Apollo API + MCP", "vendor": "Apollo.io", "vendorUrl": "https://www.apollo.io", "kind": "http-api", "category": "lead-data", "summary": "People and company search over Apollo's database of about 240 million contacts and 30 million companies, person and company enrichment with email and mobile reveal, and the Apollo CRM and sequence objects.", "url": "https://www.anchorterminal.com/tools/apollo", "markdownUrl": "https://www.anchorterminal.com/tools/apollo.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/apollo.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/apollo.json", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.apollo.io/api/v1", "packages": [], "auth": "mixed", "authNotes": "REST uses the `x-api-key` header. Keys can be limited to chosen endpoints, and a master key reaches everything. Partners use OAuth 2.0. The hosted MCP at mcp.apollo.io uses OAuth, and headless clients send a master key in `X-Api-Key`. Calls act as the workspace's longest-standing active admin, whoever made the key.", "pricing": "freemium", "pricingNotes": "Free plan, then Basic $49, Professional $79 and Organization $119 a user a month billed yearly ($59, $99 and $149 monthly; the Organization plan needs 3 seats). People search costs 0 credits. Person enrichment is 1 credit for email and demographics plus 8 for a mobile number, and waterfall lookups through third-party vendors can reach 20 or more credits for an email and 45 or more for a phone. Company enrichment is 1 credit per company, company search 1 credit per page of up to 100. The pricing FAQ says custom integrations need a Custom plan, while the API docs list rate limits for the Free through Organization plans (https://www.apollo.io/pricing).", "priceSummary": "$49 / seat-mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 mention in the API docs, MCP docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 25, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.apollo.io", "llmsTxt": "https://docs.apollo.io/llms.txt", "openapi": "https://docs.apollo.io/openapi/apollo-rest-api.json", "registryName": "io.github.apolloio/apollo-mcp", "capabilities": [ "lead.search", "lead.enrichment", "email.finder", "data.company", "data.person" ], "tags": [ "lead-search", "enrichment", "hosted", "freemium", "mcp", "llms-txt", "openapi", "webhooks", "closed-source" ], "graded": true, "anchor": { "graded": true, "score": 63.3, "grade": "B", "agentReady": false, "rank": 423, "ranked": true, "rankOf": 1076, "categoryRank": 3, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 65, "maintenance": 58, "payments": 30, "reliability": 65, "schema": 87, "security": 60, "transparency": 72 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "People search costs 0 credits, up to 100 records a page and 50,000 a query. Headless MCP use needs a master key that reaches every endpoint.", "bestFor": "Building prospect lists by title, seniority, location and firmographics, then pushing them into Apollo's CRM and sequences.", "strengths": [ "People search costs 0 credits, up to 100 records a page and 50,000 a query", "`error_details` carries a stable code, ordered fix suggestions and `retry_after_seconds`", "Scoped API keys limited to chosen endpoints, with regenerate and delete", "ISO 27001 and SOC 2 Type 2, with a public subprocessor list in the trust centre", "Listed in the official MCP registry under io.github.apolloio" ], "weaknesses": [ "Headless MCP use needs a master key that reaches every endpoint", "MCP write actions include sending email, sequence enrolment and buying domains, with no read-only mode", "Status page has no API or MCP component, and logged background-job downtimes of 1 h 16 min and 2 h 49 min in the last 90 days", "Pricing FAQ says API access is on Custom plans, while the API docs list limits for Free through the Organization plan", "One changelog entry and no SLA found" ], "agentNotes": [ "Search people first at 0 credits, then enrich only the people you'll contact", "Branch on `error_details.code` and wait `retry_after_seconds` from the suggestions after a 429", "Limits are per team, so read the `x-minute-usage` and remaining headers before a bulk run", "Use a scoped key with only the endpoints the job needs. A master key reaches everything", "Get a person's approval before adding contacts to a sequence, since enrolment can start sending" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 63.3 } ], "editorialScores": { "ergonomics": 65, "maintenance": 58, "payments": 30, "reliability": 65, "schema": 87, "security": 60, "transparency": 64 }, "provenanceScore": 79 }, "connect": { "http": "curl -X POST https://api.apollo.io/api/v1/mixed_people/api_search -H \"x-api-key: $APOLLO_API_KEY\" \\\n -H \"Content-Type: application/json\" -d '{\"person_titles\":[\"head of sales\"],\"per_page\":5}'", "claudeCode": "claude mcp add --transport http apollo https://mcp.apollo.io/mcp" }, "letme": { "capability": "https://letme.dev/lead.search", "tool": "https://letme.dev/apollo" }, "area": "web-data", "unitPrices": [ { "item": "Basic plan", "unit": "seat-month", "usd": 49, "note": "billed yearly, $59 monthly" }, { "item": "Professional plan", "unit": "seat-month", "usd": 79, "note": "billed yearly, $99 monthly" }, { "item": "Organization plan", "unit": "seat-month", "usd": 119, "note": "billed yearly, $149 monthly, 3 seats minimum" } ], "provenance": { "legalEntity": "ZenLeads Inc. d/b/a Apollo.io", "domain": "apollo.io", "domainRegistered": "2018-01-09", "endpointOnVendorDomain": true, "terms": "https://www.apollo.io/terms", "privacy": "https://www.apollo.io/privacy-policy", "statusPage": "https://status.apollo.io", "changelog": "https://docs.apollo.io/changelog", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "Plan prices come from the pricing page's structured data and third-party reports. The plan table itself renders client-side" ], "score": 79 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/apollo.json", "live": { "slug": "apollo", "probe": { "target": "https://api.apollo.io/api/v1", "method": "get", "lastAt": "2026-10-14T09:41:41.318171612Z", "lastOk": true, "lastStatus": 404, "lastMs": 185, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 330, "p95ms24h": 388, "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": 272 }, { "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 } ] }, "vendorStatus": { "page": "https://status.apollo.io", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-14T08:52:42.642821022Z" }, "versions": [ { "registry": "mcp-registry", "name": "io.github.apolloio/apollo-mcp", "version": "0.1.1", "seenAt": "2026-10-14T04:18:30.41681267Z" } ], "securityTxt": { "url": "https://apollo.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-13T15:45:05.060260549Z" }, "llmsTxt": { "url": "https://docs.apollo.io/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-13T14:10:53.525208714Z" }, "domain": { "domain": "apollo.io", "checkedAt": "2026-10-11T13:13:17.392133947Z" }, "pages": [ { "url": "https://docs.apollo.io/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-13T20:14:01.038405298Z", "changedAt": "2026-10-13T20:14:01.038405298Z", "fingerprint": "6c59f8e1ad43" }, { "url": "https://docs.apollo.io/openapi/apollo-rest-api.json", "kind": "deprecations", "status": 200, "checkedAt": "2026-10-13T20:14:03.521403088Z", "changedAt": "0001-01-01T00:00:00Z" }, { "url": "https://www.apollo.io/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-13T20:25:56.679518735Z", "changedAt": "2026-10-05T16:01:28.412667262Z", "fingerprint": "6468fcce8923" }, { "url": "https://www.apollo.io/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-13T20:25:58.779362206Z", "changedAt": "2026-10-03T15:37:08.597416668Z", "fingerprint": "0c91b7af950c" }, { "url": "https://www.apollo.io/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-13T20:26:00.845336853Z", "changedAt": "2026-10-03T15:37:10.47446383Z", "fingerprint": "dbbe719a7b6c" } ], "updatedAt": "2026-10-14T09:41:41.318171612Z" } }, "answer": "Apollo API + MCP scores 63.3 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.", "b": { "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" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Apollo.io", "b": "HubSpot, Inc.", "name": "Vendor" }, { "a": "https://api.apollo.io/api/v1", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "API key", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "b": "Proprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brand", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "io.github.apolloio/apollo-mcp", "b": "not listed", "name": "MCP registry" }, { "a": "none", "b": "2025-12-08", "name": "Last release" }, { "a": "2026-08-10", "b": "2025-05-30", "name": "Terms last updated" }, { "a": "2026-08-10", "b": "2026-08-31", "name": "Privacy policy last updated" }, { "a": "yes", "b": "yes", "name": "Customer content may train models" }, { "a": "yes", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "yes", "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": "yes", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "25 stars", "b": "none", "name": "Popularity" }, { "a": "2.5/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Apollo API + MCP scores 63.3 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.", "question": "Which is better for AI agents, Apollo API + MCP or Clearbit?" }, { "answer": "Apollo API + MCP takes an API key or an OAuth sign-in. Clearbit needs an API key.", "question": "Do Apollo API + MCP and Clearbit need an API key?" }, { "answer": "Apollo API + MCP has a hosted endpoint at https://api.apollo.io/api/v1. No hosted endpoint is listed for Clearbit.", "question": "Can an agent call Apollo API + MCP and Clearbit without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 65 against 30", "Schema \u0026 documentation, 87 against 0", "Agent ergonomics, 65 against 0", "Security \u0026 auth, 60 against 8", "Payments \u0026 pricing, 30 against 0", "Maintenance \u0026 community, 58 against 4", "Transparency \u0026 trust, 72 against 66" ], "also": [ "A hosted endpoint, with nothing to install" ], "goodFor": "Building prospect lists by title, seniority, location and firmographics, then pushing them into Apollo's CRM and sequences.", "slug": "apollo", "watchFor": "Headless MCP use needs a master key that reaches every endpoint" }, { "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" } ], "job": { "capability": "lead.enrichment", "name": "Lead enrichment" }, "others": [ { "json": "https://www.anchorterminal.com/compare/apollo-vs-clay.json", "title": "Apollo API + MCP vs Clay", "url": "https://www.anchorterminal.com/compare/apollo-vs-clay" }, { "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/apollo-vs-crustdata.json", "title": "Apollo API + MCP vs Crustdata API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-crustdata" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-enrich-layer.json", "title": "Apollo API + MCP vs Enrich Layer API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-enrich-layer" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-explorium-agentsource.json", "title": "Apollo API + MCP vs Explorium AgentSource", "url": "https://www.anchorterminal.com/compare/apollo-vs-explorium-agentsource" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-fullenrich.json", "title": "Apollo API + MCP vs FullEnrich API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-fullenrich" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-fuse-mcp.json", "title": "Apollo API + MCP vs Fuse MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-fuse-mcp" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-gojiberry.json", "title": "Apollo API + MCP vs Gojiberry", "url": "https://www.anchorterminal.com/compare/apollo-vs-gojiberry" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-hunter.json", "title": "Apollo API + MCP vs Hunter API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-hunter" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-leadmagic.json", "title": "Apollo API + MCP vs LeadMagic API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-leadmagic" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-lusha.json", "title": "Apollo API + MCP vs Lusha API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-lusha" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-people-data-labs.json", "title": "Apollo API + MCP vs People Data Labs", "url": "https://www.anchorterminal.com/compare/apollo-vs-people-data-labs" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-prospeo.json", "title": "Apollo API + MCP vs Prospeo API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-prospeo" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-rocketreach.json", "title": "Apollo API + MCP vs RocketReach API", "url": "https://www.anchorterminal.com/compare/apollo-vs-rocketreach" }, { "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/apollo-vs-dropcontact.json", "title": "Apollo API + MCP vs Dropcontact API + MCP", "url": "https://www.anchorterminal.com/compare/apollo-vs-dropcontact" }, { "json": "https://www.anchorterminal.com/compare/apollo-vs-fullcontact.json", "title": "Apollo API + MCP vs FullContact", "url": "https://www.anchorterminal.com/compare/apollo-vs-fullcontact" }, { "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/clearbit-vs-zoominfo.json", "title": "Clearbit vs ZoomInfo API + MCP", "url": "https://www.anchorterminal.com/compare/clearbit-vs-zoominfo" } ], "scores": [ { "apollo": 65, "by": 35, "clearbit": 30, "edge": "apollo", "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "apollo": 87, "by": 87, "clearbit": 0, "edge": "apollo", "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "apollo": 65, "by": 65, "clearbit": 0, "edge": "apollo", "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "apollo": 60, "by": 52, "clearbit": 8, "edge": "apollo", "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "apollo": 30, "by": 30, "clearbit": 0, "edge": "apollo", "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "apollo": 58, "by": 54, "clearbit": 4, "edge": "apollo", "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "apollo": 72, "by": 6, "clearbit": 66, "edge": "apollo", "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Apollo API + MCP scores 63.3 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category. Both do lead enrichment.", "verdicts": { "apollo": "People search costs 0 credits, up to 100 records a page and 50,000 a query. Headless MCP use needs a master key that reaches every endpoint.", "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." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/apollo-vs-clearbit", "json": "https://www.anchorterminal.com/compare/apollo-vs-clearbit.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/apollo-vs-clearbit.md", "slim": "https://www.anchorterminal.com/compare/apollo-vs-clearbit.min.md" }, "markdown": "Apollo API + MCP scores 63.3 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category. Both do lead enrichment.\n\n- Apollo API + MCP: grade B, 63.3/100, rank #423 of 1076. Markdown https://www.anchorterminal.com/tools/apollo.md · JSON https://www.anchorterminal.com/api/v1/tools/apollo.json\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- 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### Apollo API + MCP (B)\n\nGood for: Building prospect lists by title, seniority, location and firmographics, then pushing them into Apollo's CRM and sequences.\n\nAhead on:\n- Reliability, 65 against 30\n- Schema \u0026 documentation, 87 against 0\n- Agent ergonomics, 65 against 0\n- Security \u0026 auth, 60 against 8\n- Payments \u0026 pricing, 30 against 0\n- Maintenance \u0026 community, 58 against 4\n- Transparency \u0026 trust, 72 against 66\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: Headless MCP use needs a master key that reaches every endpoint\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\n## Score by category\n\n| Category | Weight | Apollo API + MCP | Clearbit | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 65 | 30 | Apollo API + MCP +35 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 0 | Apollo API + MCP +87 |\n| Agent ergonomics | 13% (16.2 this run) | 65 | 0 | Apollo API + MCP +65 |\n| Security \u0026 auth | 14% (17.5 this run) | 60 | 8 | Apollo API + MCP +52 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 0 | Apollo API + MCP +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 58 | 4 | Apollo API + MCP +54 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 72 | 66 | Apollo API + MCP +6 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **63.3 · B** | **13.5 · F** | |\n\n## Facts side by side\n\n| Fact | Apollo API + MCP | Clearbit |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Apollo.io | HubSpot, Inc. |\n| Hosted endpoint | `https://api.apollo.io/api/v1` | no (local only) |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | none | Proprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brand |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| MCP registry | `io.github.apolloio/apollo-mcp` | not listed |\n| Last release | none | 2025-12-08 |\n| Terms last updated | 2026-08-10 | 2025-05-30 |\n| Privacy policy last updated | 2026-08-10 | 2026-08-31 |\n| Customer content may train models | yes | yes |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | yes | 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 | yes | not found in the text |\n| Popularity | 25 stars | none |\n| Agent reviews | 2.5/5 (2) | none |\n\n## Verdicts\n\n**Apollo API + MCP.** People search costs 0 credits, up to 100 records a page and 50,000 a query. Headless MCP use needs a master key that reaches every endpoint.\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## Before you call either\n\n### Apollo API + MCP\n\n1. Search people first at 0 credits, then enrich only the people you'll contact\n2. Branch on `error_details.code` and wait `retry_after_seconds` from the suggestions after a 429\n3. Limits are per team, so read the `x-minute-usage` and remaining headers before a bulk run\n4. Use a scoped key with only the endpoints the job needs. A master key reaches everything\n5. Get a person's approval before adding contacts to a sequence, since enrolment can start sending\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## Questions\n\n### Which is better for AI agents, Apollo API + MCP or Clearbit?\n\nApollo API + MCP scores 63.3 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.\n\n### Do Apollo API + MCP and Clearbit need an API key?\n\nApollo API + MCP takes an API key or an OAuth sign-in. Clearbit needs an API key.\n\n### Can an agent call Apollo API + MCP and Clearbit without installing anything?\n\nApollo API + MCP has a hosted endpoint at https://api.apollo.io/api/v1. No hosted endpoint is listed for Clearbit.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/apollo-vs-clearbit.json, and with the fewest tokens: https://www.anchorterminal.com/compare/apollo-vs-clearbit.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"apollo\", \"b\": \"clearbit\"}`. From a terminal: `anchor compare apollo clearbit`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/apollo.json and https://www.anchorterminal.com/api/v1/tools/clearbit.json\n\n## Other comparisons with Apollo API + MCP or Clearbit\n\n- [Apollo API + MCP vs Clay](https://www.anchorterminal.com/compare/apollo-vs-clay.md)\n- [Apollo API + MCP vs Coresignal API + MCP](https://www.anchorterminal.com/compare/apollo-vs-coresignal.md)\n- [Apollo API + MCP vs Crustdata API + MCP](https://www.anchorterminal.com/compare/apollo-vs-crustdata.md)\n- [Apollo API + MCP vs Enrich Layer API + MCP](https://www.anchorterminal.com/compare/apollo-vs-enrich-layer.md)\n- [Apollo API + MCP vs Explorium AgentSource](https://www.anchorterminal.com/compare/apollo-vs-explorium-agentsource.md)\n- [Apollo API + MCP vs FullEnrich API + MCP](https://www.anchorterminal.com/compare/apollo-vs-fullenrich.md)\n- [Apollo API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/apollo-vs-fuse-mcp.md)\n- [Apollo API + MCP vs Gojiberry](https://www.anchorterminal.com/compare/apollo-vs-gojiberry.md)\n- [Apollo API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/apollo-vs-hunter.md)\n- [Apollo API + MCP vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/apollo-vs-leadmagic.md)\n- [Apollo API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/apollo-vs-lusha.md)\n- [Apollo API + MCP vs People Data Labs](https://www.anchorterminal.com/compare/apollo-vs-people-data-labs.md)\n- [Apollo API + MCP vs Prospeo API + MCP](https://www.anchorterminal.com/compare/apollo-vs-prospeo.md)\n- [Apollo API + MCP vs RocketReach API](https://www.anchorterminal.com/compare/apollo-vs-rocketreach.md)\n- [Apollo API + MCP vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/apollo-vs-zoominfo.md)\n- [Apollo API + MCP vs Dropcontact API + MCP](https://www.anchorterminal.com/compare/apollo-vs-dropcontact.md)\n- [Apollo API + MCP vs FullContact](https://www.anchorterminal.com/compare/apollo-vs-fullcontact.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- [Clearbit vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/clearbit-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": "Apollo API + MCP vs Clearbit", "url": "" } ], "description": "Apollo scores 63.3 (B) to Clearbit's 13.5 (F) for lead enrichment. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Apollo API + MCP B 63.3", "Clearbit F 13.5", "scores" ], "h1": "Apollo API + MCP vs Clearbit", "image": "https://www.anchorterminal.com/assets/og/compare-apollo-vs-clearbit.png", "path": "/compare/apollo-vs-clearbit", "published": "2026-10-01", "section": "tools", "title": "Apollo vs Clearbit for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-14", "url": "https://www.anchorterminal.com/compare/apollo-vs-clearbit" }, "tokens": { "markdown": 2500, "slim": 680 }, "version": 1 }