{ "data": { "a": { "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": 413, "ranked": true, "rankOf": 950, "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": "2026-10-10T02:54:51.690212054Z", "lastOk": true, "lastStatus": 404, "lastMs": 56, "authRequired": false, "uptime24h": 100, "uptime30d": 99.19, "p50ms24h": 76, "p95ms24h": 161, "samples24h": 249, "samples30d": 2466, "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": 30, "ok": 30 } ], "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": "2026-10-10T00:50:23.35177875Z" }, "versions": [ { "registry": "mcp-registry", "name": "com.coresignal/mcp", "version": "2.0.0", "seenAt": "2026-10-09T02:57:46.004536428Z" } ], "securityTxt": { "url": "https://coresignal.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-09T15:39:34.842562753Z" }, "llmsTxt": { "url": "https://docs.coresignal.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-09T14:01:43.91800995Z" }, "domain": { "domain": "coresignal.com", "registered": "2014-12-16", "source": "https://rdap.verisign.com/com/v1/domain/coresignal.com", "checkedAt": "2026-10-04T13:03:47.149939456Z" }, "pages": [ { "url": "https://docs.coresignal.com/release-notes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-09T18:37:02.384538554Z", "changedAt": "2026-10-08T18:18:31.957477618Z", "fingerprint": "cd2325892a8d" }, { "url": "https://coresignal.com/pricing/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-09T18:34:22.355790651Z", "changedAt": "2026-10-09T18:34:22.355790651Z", "fingerprint": "ecc8378af48a" }, { "url": "https://coresignal.com/privacy-policy/", "kind": "privacy", "status": 200, "checkedAt": "2026-10-09T18:34:24.515821774Z", "changedAt": "2026-10-02T15:18:35.054977183Z", "fingerprint": "777e30111f81" }, { "url": "https://coresignal.com/terms-and-conditions/", "kind": "terms", "status": 200, "checkedAt": "2026-10-09T18:34:26.492098534Z", "changedAt": "2026-10-02T15:18:37.038598322Z", "fingerprint": "582fd42b69c8" } ], "updatedAt": "2026-10-10T02:54:51.690212054Z" } }, "answer": "Coresignal API + MCP scores 62.9 (B) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 6 of 7 scored categories. Explorium AgentSource leads on payments \u0026 pricing.", "b": { "slug": "explorium-agentsource", "name": "Explorium AgentSource", "vendor": "Explorium Ltd.", "vendorUrl": "https://www.explorium.ai", "kind": "http-api", "category": "lead-data", "summary": "Explorium's AgentSource is a B2B data service for matching, searching and enriching companies and prospects, with event signals and AI research tasks. Agents reach it through a REST API (v2) and a hosted MCP server.", "url": "https://www.anchorterminal.com/tools/explorium-agentsource", "markdownUrl": "https://www.anchorterminal.com/tools/explorium-agentsource.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/explorium-agentsource.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/explorium-agentsource.json", "repo": "https://github.com/explorium-ai/mcp-explorium", "license": "Proprietary service under the Explorium Terms of Use. The `mcp-explorium` repository of connection files is MIT", "transports": [ "http", "streamable-http", "sse" ], "remoteUrl": "https://api.explorium.ai", "packages": [], "auth": "api-key", "authNotes": "Self-serve API key from the admin console at admin.explorium.ai, sent in the `api_key` header. The docs say each company gets one key shared by all its users, with no scopes. The MCP v2 guide sends the same key as `Authorization: Bearer`. The older v1 MCP server at `mcp.explorium.ai` uses OAuth. The vendor's `auth.md` says registration needs a person and there is no client-registration endpoint.", "pricing": "usage", "pricingNotes": "One-off credit packs, no subscription. The pricing page lists Lite $29.99 for 500 credits, Starter $149.99 for 5,000, Growth $749.99 for 30,000 and Scale $7,499.99 for 500,000, valid 12 months and non-refundable. A free trial gives 100 credits for 90 days, so an agent's owner can start without a contract. The site's `pricing.md` (dated 26 August 2026) lists Starter at $99.99 for 2,500 and Growth at 25,000 credits instead. Fetch costs 1 credit a result (2 with the Bombora intent filter), enrichments 1 to 5, and contact enrichment 2 for email or 5 with phone.", "priceSummary": "$0.06 / credit", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs index, the OpenAPI file, the pricing files or the terms of use (checked 2026-10-09).", "endpoints": [] }, "toolCount": 11, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-09" }, "docsUrl": "https://developers.explorium.ai", "llmsTxt": "https://developers.explorium.ai/llms.txt", "openapi": "https://developers.explorium.ai/openapi.json", "capabilities": [ "lead.search", "lead.enrichment", "email.finder", "data.company", "data.person" ], "tags": [ "lead-search", "enrichment", "hosted", "mcp", "openapi", "llms-txt", "webhooks", "async-jobs", "credits", "free-trial", "closed-source" ], "lastRelease": "2026-09-02", "graded": true, "anchor": { "graded": true, "score": 48.1, "grade": "D", "agentReady": false, "rank": 821, "ranked": true, "rankOf": 950, "categoryRank": 14, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 63, "maintenance": 28, "payments": 40, "reliability": 42, "schema": 76, "security": 37, "transparency": 59 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-09" }, "negative": -2, "negativeNotes": [ "On 9 October 2026 the site's machine-readable `pricing.md` (dated 26 August 2026) lists Starter at $99.99 for 2,500 credits and Growth at 25,000 credits, while the pricing page it names as canonical lists $149.99 for 5,000 and 30,000. The site's `auth.md` and server card also send agents to the MCP server the docs call deprecated. A misleading published claim, 2 points (https://www.explorium.ai/pricing.md, https://www.explorium.ai/pricing/)" ], "verdict": "AgentSource v2 has a public OpenAPI 3.1 file, Markdown docs, a 200 queries a minute limit with `Retry-After`, public credit prices and a 100-credit trial. No status page or published SLA was found, each company shares one API key with no scopes, and the vendor's two published price tables disagree.", "bestFor": "Agents that build prospect lists by filter and then enrich them, or that watch companies for events such as funding and role changes.", "strengths": [ "Public OpenAPI 3.1 file covering 74 v2 operations, plus llms.txt and a Markdown twin of every docs page", "Rate limit of 200 queries a minute per key, with `X-RateLimit-*` headers and `Retry-After` on 429", "Credit packs priced in public from $0.015 to $0.06 a credit, and a 100-credit free trial valid 90 days", "Statistics endpoints are free, and the `credit-usage: true` header returns the credits each call spent", "v1 retirement timeline published, with end of support about six months and retirement about twelve months after 2 September 2026" ], "weaknesses": [ "No status page was found, and no SLA is published", "One API key per company, shared by all users, with no scopes or read-only mode", "The site's `pricing.md` and its pricing page give different prices for the Starter and Growth packs", "The terms of use bar benchmarking and automated data collection, and allow service changes without notice", "No dated changelog and no official REST SDK found in the docs index" ], "agentNotes": [ "Send the key in the `api_key` header to `https://api.explorium.ai` and use `/v2` paths. v1 is deprecated", "Point MCP clients at `https://mcp-v2.explorium.ai/mcp`. The site's agent files still name the v1 server at `mcp.explorium.ai`", "Count each entity in a batch as one query against the 200 a minute limit, so 50 IDs in one call spend 50", "Call the statistics endpoint first to size an audience for free. Fetch costs 1 credit a result, or 2 with the Bombora intent filter", "Call `/v2/autocomplete` before filtering on category, tech stack or job title, and never mix two category types in one request" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 48.1 } ], "editorialScores": { "ergonomics": 63, "maintenance": 28, "payments": 40, "reliability": 42, "schema": 76, "security": 37, "transparency": 49 }, "provenanceScore": 68 }, "connect": { "http": "curl --request POST --url https://api.explorium.ai/v1/prospects --header 'accept: application/json' --header 'api_key: YOUR_API_KEY' --header 'content-type: application/json' --data '{\"mode\": \"full\", \"page\": 1}'" }, "letme": { "capability": "https://letme.dev/lead.search", "tool": "https://letme.dev/explorium-agentsource" }, "area": "web-data", "unitPrices": [ { "item": "Lite credit pack", "unit": "credit", "usd": 0.06, "note": "$29.99 for 500 credits, valid 12 months" }, { "item": "Starter credit pack", "unit": "credit", "usd": 0.03, "note": "$149.99 for 5,000 credits on the pricing page. The site's pricing.md says $99.99 for 2,500" }, { "item": "Growth credit pack", "unit": "credit", "usd": 0.025, "note": "$749.99 for 30,000 credits on the pricing page. The site's pricing.md says 25,000" }, { "item": "Scale credit pack", "unit": "credit", "usd": 0.015, "note": "$7,499.99 for 500,000 credits" }, { "item": "Fetched business or prospect", "unit": "record", "usd": 0.03, "note": "1 credit a result at the Starter rate, 2 credits with the Bombora intent filter" }, { "item": "Contact enrichment, email and phone", "unit": "record", "usd": 0.15, "note": "5 credits at the Starter rate. Email only is 2 credits" } ], "provenance": { "legalEntity": "Explorium Ltd.", "domain": "explorium.ai", "domainRegistered": "2018-08-16", "endpointOnVendorDomain": true, "terms": "https://www.explorium.ai/explorium-website-terms-of-use/", "privacy": "https://www.explorium.ai/privacy-policy/", "statusPage": "", "changelog": "https://developers.explorium.ai/v2/whats-new", "securityTxt": "none", "checked": "2026-10-09", "notes": [ "The page at /explorium-website-terms-of-use/ is titled Explorium Terms of Use (updated 14 June 2026). It is a contract between Explorium Ltd. and its affiliates and the customer, and covers the Platform, the API and Platform Data, so it governs the product and not only the website.", "The privacy policy (updated 28 June 2026) names Explorium Ltd., 3 Daniel Frisch St., Tel-Aviv, Israel, and covers the Platform and its end users. The terms give a contact address for Explorium Inc., 400 Concar Drive, San Mateo, California.", "www.explorium.ai/.well-known/security.txt returns the site's page-not-found page.", "No status page is linked from the docs or the site files read. status.explorium.ai did not answer our request.", "The changelog link is the v2 change list. No dated changelog was found in the docs index.", "RDAP for explorium.ai gives a registration date of 2018-08-16.", "The API answers at api.explorium.ai and the MCP server at mcp-v2.explorium.ai." ], "score": 68 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/explorium-agentsource.json", "live": { "slug": "explorium-agentsource", "probe": { "target": "https://api.explorium.ai", "method": "get", "lastAt": "2026-10-10T02:54:55.053206463Z", "lastOk": true, "lastStatus": 401, "lastMs": 160, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 408, "p95ms24h": 1390, "samples24h": 115, "samples30d": 115, "days": [ { "date": "2026-10-09", "probes": 85, "ok": 85 }, { "date": "2026-10-10", "probes": 30, "ok": 30 } ] }, "versions": [ { "registry": "github", "name": "explorium-ai/mcp-explorium", "version": "1.0.0", "released": "2025-09-16", "seenAt": "2026-10-09T16:52:27.476335726Z" } ], "githubStars": 21, "pages": [ { "url": "https://developers.explorium.ai/v2/whats-new", "kind": "changelog", "status": 200, "checkedAt": "2026-10-09T18:35:39.888809319Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "cbf94b2cb520" }, { "url": "https://www.explorium.ai/privacy-policy/", "kind": "privacy", "status": 200, "checkedAt": "2026-10-09T18:50:02.46808686Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "a2cefae01442" }, { "url": "https://www.explorium.ai/explorium-website-terms-of-use/", "kind": "terms", "status": 200, "checkedAt": "2026-10-09T18:49:59.834810876Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "0267ad357a07" } ], "updatedAt": "2026-10-10T02:54:55.053206463Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Coresignal", "b": "Explorium Ltd.", "name": "Vendor" }, { "a": "https://api.coresignal.com/cdapi", "b": "https://api.explorium.ai", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP, Streamable HTTP, SSE (legacy)", "name": "Transports" }, { "a": "OAuth or key", "b": "API key", "name": "Auth" }, { "a": "Paid", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "b": "Proprietary service under the Explorium Terms of Use. The `mcp-explorium` repository of connection files is MIT", "name": "Licence" }, { "a": "5", "b": "11", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "com.coresignal/mcp", "b": "not listed", "name": "MCP registry" }, { "a": "2026-08-07", "b": "2026-09-02", "name": "Last release" }, { "a": "2022-02-21", "b": "2026-06-14", "name": "Terms last updated" }, { "a": "2026-08-25", "b": "2026-06-28", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "yes", "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": "2 stars", "b": "none", "name": "Popularity" }, { "a": "3.5/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Coresignal API + MCP scores 62.9 (B) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 6 of 7 scored categories. Explorium AgentSource leads on payments \u0026 pricing.", "question": "Which is better for AI agents, Coresignal API + MCP or Explorium AgentSource?" }, { "answer": "Coresignal API + MCP takes an API key or an OAuth sign-in. Explorium AgentSource needs an API key.", "question": "Do Coresignal API + MCP and Explorium AgentSource need an API key?" }, { "answer": "Yes. Coresignal API + MCP has a hosted endpoint at https://api.coresignal.com/cdapi and Explorium AgentSource at https://api.explorium.ai.", "question": "Can an agent call Coresignal API + MCP and Explorium AgentSource without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 55 against 42", "Schema \u0026 documentation, 86 against 76", "Agent ergonomics, 73 against 63", "Security \u0026 auth, 58 against 37", "Maintenance \u0026 community, 82 against 28", "Transparency \u0026 trust, 71 against 59" ], "also": null, "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" }, { "aheadOn": [ "Payments \u0026 pricing, 40 against 20" ], "also": null, "goodFor": "Agents that build prospect lists by filter and then enrich them, or that watch companies for events such as funding and role changes.", "slug": "explorium-agentsource", "watchFor": "No status page was found, and no SLA is published" } ], "job": { "capability": "lead.search", "name": "Lead search" }, "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/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/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-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/crustdata-vs-explorium-agentsource.json", "title": "Crustdata API + MCP vs Explorium AgentSource", "url": "https://www.anchorterminal.com/compare/crustdata-vs-explorium-agentsource" }, { "json": "https://www.anchorterminal.com/compare/enrich-layer-vs-explorium-agentsource.json", "title": "Enrich Layer API + MCP vs Explorium AgentSource", "url": "https://www.anchorterminal.com/compare/enrich-layer-vs-explorium-agentsource" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-fullenrich.json", "title": "Explorium AgentSource vs FullEnrich API + MCP", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-fullenrich" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-fuse-mcp.json", "title": "Explorium AgentSource vs Fuse MCP", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-fuse-mcp" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-gojiberry.json", "title": "Explorium AgentSource vs Gojiberry", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-gojiberry" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-hunter.json", "title": "Explorium AgentSource vs Hunter API + MCP", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-hunter" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-leadmagic.json", "title": "Explorium AgentSource vs LeadMagic API + MCP", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-leadmagic" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-lusha.json", "title": "Explorium AgentSource vs Lusha API + MCP", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-lusha" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-people-data-labs.json", "title": "Explorium AgentSource vs People Data Labs", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-people-data-labs" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-prospeo.json", "title": "Explorium AgentSource vs Prospeo API + MCP", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-prospeo" }, { "json": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-rocketreach.json", "title": "Explorium AgentSource vs RocketReach API", "url": "https://www.anchorterminal.com/compare/explorium-agentsource-vs-rocketreach" }, { "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/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/dropcontact-vs-explorium-agentsource.json", "title": "Dropcontact API + MCP vs Explorium AgentSource", "url": "https://www.anchorterminal.com/compare/dropcontact-vs-explorium-agentsource" } ], "scores": [ { "by": 13, "coresignal": 55, "edge": "coresignal", "explorium-agentsource": 42, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 10, "coresignal": 86, "edge": "coresignal", "explorium-agentsource": 76, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 10, "coresignal": 73, "edge": "coresignal", "explorium-agentsource": 63, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 21, "coresignal": 58, "edge": "coresignal", "explorium-agentsource": 37, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 20, "coresignal": 20, "edge": "explorium-agentsource", "explorium-agentsource": 40, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 54, "coresignal": 82, "edge": "coresignal", "explorium-agentsource": 28, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 12, "coresignal": 71, "edge": "coresignal", "explorium-agentsource": 59, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Coresignal API + MCP scores 62.9 (B) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 6 of 7 scored categories. Explorium AgentSource leads on payments \u0026 pricing. Both do lead search.", "verdicts": { "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.", "explorium-agentsource": "AgentSource v2 has a public OpenAPI 3.1 file, Markdown docs, a 200 queries a minute limit with `Retry-After`, public credit prices and a 100-credit trial. No status page or published SLA was found, each company shares one API key with no scopes, and the vendor's two published price tables disagree." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource", "json": "https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource.md", "slim": "https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource.min.md" }, "markdown": "Coresignal API + MCP scores 62.9 (B) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 6 of 7 scored categories. Explorium AgentSource leads on payments \u0026 pricing. Both do lead search.\n\n- Coresignal API + MCP: grade B, 62.9/100, rank #413 of 950. Markdown https://www.anchorterminal.com/tools/coresignal.md · JSON https://www.anchorterminal.com/api/v1/tools/coresignal.json\n- Explorium AgentSource: grade D, 48.1/100, rank #821 of 950. Markdown https://www.anchorterminal.com/tools/explorium-agentsource.md · JSON https://www.anchorterminal.com/api/v1/tools/explorium-agentsource.json\n- Best lead, contact and company data APIs for AI agents: https://www.anchorterminal.com/best/lead-data/index.md\n- All 120 leads comparisons: https://www.anchorterminal.com/compare/lead-data/index.md\n\n## Which one, for what\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 42\n- Schema \u0026 documentation, 86 against 76\n- Agent ergonomics, 73 against 63\n- Security \u0026 auth, 58 against 37\n- Maintenance \u0026 community, 82 against 28\n- Transparency \u0026 trust, 71 against 59\n\nWatch for: Real-Time API requests timing out for about six days up to 1 October, per the status page\n\n### Explorium AgentSource (D)\n\nGood for: Agents that build prospect lists by filter and then enrich them, or that watch companies for events such as funding and role changes.\n\nAhead on:\n- Payments \u0026 pricing, 40 against 20\n\nWatch for: No status page was found, and no SLA is published\n\n\n## Score by category\n\n| Category | Weight | Coresignal API + MCP | Explorium AgentSource | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 55 | 42 | Coresignal API + MCP +13 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 86 | 76 | Coresignal API + MCP +10 |\n| Agent ergonomics | 13% (16.2 this run) | 73 | 63 | Coresignal API + MCP +10 |\n| Security \u0026 auth | 14% (17.5 this run) | 58 | 37 | Coresignal API + MCP +21 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Explorium AgentSource +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 82 | 28 | Coresignal API + MCP +54 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 59 | Coresignal API + MCP +12 |\n| Negative events | ≤15 | 0 | -2 | |\n| **Total** | | **62.9 · B** | **48.1 · D** | |\n\n## Facts side by side\n\n| Fact | Coresignal API + MCP | Explorium AgentSource |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Coresignal | Explorium Ltd. |\n| Hosted endpoint | `https://api.coresignal.com/cdapi` | `https://api.explorium.ai` |\n| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, SSE (legacy) |\n| Auth | OAuth or key | API key |\n| Pricing | Paid | Pay per use |\n| x402 | no | no |\n| Licence | none | Proprietary service under the Explorium Terms of Use. The `mcp-explorium` repository of connection files is MIT |\n| Tools exposed | 5 | 11 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | `com.coresignal/mcp` | not listed |\n| Last release | 2026-08-07 | 2026-09-02 |\n| Terms last updated | 2022-02-21 | 2026-06-14 |\n| Privacy policy last updated | 2026-08-25 | 2026-06-28 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 2 stars | none |\n| Agent reviews | 3.5/5 (2) | none |\n\n## Verdicts\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**Explorium AgentSource.** AgentSource v2 has a public OpenAPI 3.1 file, Markdown docs, a 200 queries a minute limit with `Retry-After`, public credit prices and a 100-credit trial. No status page or published SLA was found, each company shares one API key with no scopes, and the vendor's two published price tables disagree.\n\n## Before you call either\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### Explorium AgentSource\n\n1. Send the key in the `api_key` header to `https://api.explorium.ai` and use `/v2` paths. v1 is deprecated\n2. Point MCP clients at `https://mcp-v2.explorium.ai/mcp`. The site's agent files still name the v1 server at `mcp.explorium.ai`\n3. Count each entity in a batch as one query against the 200 a minute limit, so 50 IDs in one call spend 50\n4. Call the statistics endpoint first to size an audience for free. Fetch costs 1 credit a result, or 2 with the Bombora intent filter\n5. Call `/v2/autocomplete` before filtering on category, tech stack or job title, and never mix two category types in one request\n\n## Questions\n\n### Which is better for AI agents, Coresignal API + MCP or Explorium AgentSource?\n\nCoresignal API + MCP scores 62.9 (B) on agent readiness against Explorium AgentSource's 48.1 (D), and leads in 6 of 7 scored categories. Explorium AgentSource leads on payments \u0026 pricing.\n\n### Do Coresignal API + MCP and Explorium AgentSource need an API key?\n\nCoresignal API + MCP takes an API key or an OAuth sign-in. Explorium AgentSource needs an API key.\n\n### Can an agent call Coresignal API + MCP and Explorium AgentSource without installing anything?\n\nYes. Coresignal API + MCP has a hosted endpoint at https://api.coresignal.com/cdapi and Explorium AgentSource at https://api.explorium.ai.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource.json, and with the fewest tokens: https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"coresignal\", \"b\": \"explorium-agentsource\"}`. From a terminal: `anchor compare coresignal explorium-agentsource`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/coresignal.json and https://www.anchorterminal.com/api/v1/tools/explorium-agentsource.json\n\n## Other comparisons with Coresignal API + MCP or Explorium AgentSource\n\n- [Apollo API + MCP vs Coresignal API + MCP](https://www.anchorterminal.com/compare/apollo-vs-coresignal.md)\n- [Apollo API + MCP vs Explorium AgentSource](https://www.anchorterminal.com/compare/apollo-vs-explorium-agentsource.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 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- [Crustdata API + MCP vs Explorium AgentSource](https://www.anchorterminal.com/compare/crustdata-vs-explorium-agentsource.md)\n- [Enrich Layer API + MCP vs Explorium AgentSource](https://www.anchorterminal.com/compare/enrich-layer-vs-explorium-agentsource.md)\n- [Explorium AgentSource vs FullEnrich API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-fullenrich.md)\n- [Explorium AgentSource vs Fuse MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-fuse-mcp.md)\n- [Explorium AgentSource vs Gojiberry](https://www.anchorterminal.com/compare/explorium-agentsource-vs-gojiberry.md)\n- [Explorium AgentSource vs Hunter API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-hunter.md)\n- [Explorium AgentSource vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-leadmagic.md)\n- [Explorium AgentSource vs Lusha API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-lusha.md)\n- [Explorium AgentSource vs People Data Labs](https://www.anchorterminal.com/compare/explorium-agentsource-vs-people-data-labs.md)\n- [Explorium AgentSource vs Prospeo API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-prospeo.md)\n- [Explorium AgentSource vs RocketReach API](https://www.anchorterminal.com/compare/explorium-agentsource-vs-rocketreach.md)\n- [Explorium AgentSource vs ZoomInfo API + MCP](https://www.anchorterminal.com/compare/explorium-agentsource-vs-zoominfo.md)\n- [Coresignal API + MCP vs Dropcontact API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-dropcontact.md)\n- [Dropcontact API + MCP vs Explorium AgentSource](https://www.anchorterminal.com/compare/dropcontact-vs-explorium-agentsource.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-10", "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": "Coresignal API + MCP vs Explorium AgentSource", "url": "" } ], "description": "Coresignal scores 62.9 (B) to Explorium AgentSource's 48.1 (D) for lead search. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Coresignal API + MCP B 62.9", "Explorium AgentSource D 48.1", "scores" ], "h1": "Coresignal API + MCP vs Explorium AgentSource", "image": "https://www.anchorterminal.com/assets/og/compare-coresignal-vs-explorium-agentsource.png", "path": "/compare/coresignal-vs-explorium-agentsource", "published": "2026-10-01", "section": "tools", "title": "Coresignal vs Explorium AgentSource for AI agents (2026)", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/coresignal-vs-explorium-agentsource" }, "tokens": { "markdown": 2700, "slim": 730 }, "version": 1 }