{
  "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": 63.1,
        "grade": "B",
        "agentReady": false,
        "rank": 208,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 2,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 73,
          "maintenance": 82,
          "payments": 20,
          "reliability": 55,
          "schema": 86,
          "security": 58,
          "transparency": 73
        },
        "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.",
        "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": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 63.1
          }
        ],
        "editorialScores": {
          "ergonomics": 73,
          "maintenance": 82,
          "payments": 20,
          "reliability": 55,
          "schema": 86,
          "security": 58,
          "transparency": 55
        },
        "provenanceScore": 90
      },
      "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": 90
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/coresignal.json",
      "live": {
        "slug": "coresignal",
        "probe": {
          "target": "https://api.coresignal.com/cdapi",
          "method": "get",
          "lastAt": "2026-10-04T23:48:06.835624466Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 124,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 65,
          "p95ms24h": 146,
          "samples24h": 272,
          "samples30d": 1100,
          "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": 270,
              "ok": 270
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.coresignal.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:39:55.511132851Z"
        },
        "versions": [
          {
            "registry": "mcp-registry",
            "name": "com.coresignal/mcp",
            "version": "2.0.0",
            "seenAt": "2026-10-04T23:42:40.113054682Z"
          }
        ],
        "securityTxt": {
          "url": "https://coresignal.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:42.817319654Z"
        },
        "llmsTxt": {
          "url": "https://docs.coresignal.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:28.23764868Z"
        },
        "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": "2026-10-04T15:43:29.35918137Z",
            "changedAt": "2026-10-02T15:19:53.091517886Z",
            "fingerprint": "612eadaed7f8"
          },
          {
            "url": "https://coresignal.com/pricing/",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-10-04T15:42:11.421973501Z",
            "changedAt": "2026-10-02T15:18:32.978977687Z",
            "fingerprint": "5f41d4b34b0f"
          },
          {
            "url": "https://coresignal.com/privacy-policy/",
            "kind": "privacy",
            "status": 304,
            "checkedAt": "2026-10-04T15:42:13.475841482Z",
            "changedAt": "2026-10-02T15:18:35.054977183Z",
            "fingerprint": "777e30111f81"
          },
          {
            "url": "https://coresignal.com/terms-and-conditions/",
            "kind": "terms",
            "status": 304,
            "checkedAt": "2026-10-04T15:42:15.458332866Z",
            "changedAt": "2026-10-02T15:18:37.038598322Z",
            "fingerprint": "582fd42b69c8"
          }
        ],
        "updatedAt": "2026-10-04T23:48:06.835624466Z"
      }
    },
    "b": {
      "slug": "enrich-layer",
      "name": "Enrich Layer API + MCP",
      "vendor": "Enrich Layer",
      "vendorUrl": "https://enrichlayer.com",
      "kind": "http-api",
      "category": "lead-data",
      "summary": "Professional profile, company, job, school and contact lookups with person and company search, built on the old Proxycurl endpoint set after Proxycurl shut down in July 2025.",
      "url": "https://www.anchorterminal.com/tools/enrich-layer",
      "markdownUrl": "https://www.anchorterminal.com/tools/enrich-layer.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/enrich-layer.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/enrich-layer.json",
      "repo": "https://github.com/enrichlayer/mcp-server",
      "license": "MIT",
      "transports": [
        "http",
        "stdio"
      ],
      "remoteUrl": "https://enrichlayer.com/api/v2",
      "packages": [
        {
          "registry": "npm",
          "name": "@enrichlayer/mcp-server"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer API key in the Authorization header, one secret key per user from the dashboard. The MCP server reads ENRICH_LAYER_API_KEY from the environment.",
      "pricing": "usage",
      "pricingNotes": "500 free credits at sign-up. Pay-as-you-go packs from $10 for 100 credits ($0.10 a credit) to $1,000 for 46,297 ($0.0216), and credits don't expire unless the account is idle for 18 months. Annual plans from Starter at $588 a year (35,000 credits plus 5,000 bonus) to Ultra at $22,788 a year. A person or company profile costs 1 credit, a work email 3, person search 3 per result, and premium fields and live fetches add more (https://enrichlayer.com/pricing).",
      "priceSummary": "$0.10 / credit",
      "where": "both",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": 25,
      "popularity": {
        "githubStars": 0,
        "npmWeekly": 26,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://enrichlayer.com/docs",
      "llmsTxt": "https://enrichlayer.com/llms.txt",
      "openapi": "https://enrichlayer.com/docs/api/v2/openapi.yaml",
      "capabilities": [
        "lead.search",
        "lead.enrichment",
        "email.finder",
        "data.person",
        "data.company"
      ],
      "tags": [
        "hosted",
        "no-card",
        "mcp",
        "llms-txt",
        "openapi",
        "webhooks",
        "typescript",
        "lead-search",
        "enrichment"
      ],
      "lastRelease": "2026-06-19",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 56,
        "grade": "C",
        "agentReady": false,
        "rank": 309,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 7,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 68,
          "maintenance": 26,
          "payments": 40,
          "reliability": 65,
          "schema": 76,
          "security": 40,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Pay-as-you-go credits from $10, non-expiring unless idle for 18 months. Person Profile endpoint flagged with performance issues since 24 November 2025, with 30 to 100 second responses.",
        "strengths": [
          "Pay-as-you-go credits from $10, non-expiring unless idle for 18 months",
          "500 free credits with no card, per the 30 September check",
          "OpenAPI 3.0 spec, and MCP tool schemas checked against it in CI",
          "All 25 MCP tools carry readOnlyHint",
          "Status page with a component per API group"
        ],
        "weaknesses": [
          "Person Profile endpoint flagged with performance issues since 24 November 2025, with 30 to 100 second responses",
          "Trial accounts limited to 2 requests a minute until the first top-up",
          "No security.txt, disclosure policy, bug bounty or certification",
          "No public changelog, and no MCP release since June 2026",
          "Privacy policy lists data brokers among sources and gives no retention periods"
        ],
        "agentNotes": [
          "Top up once before testing. Trial keys run at 2 requests a minute",
          "Set the person profile timeout to at least 100 seconds",
          "Ask for `extra`, personal emails or phone numbers only when needed, since each adds credits",
          "Use `callback_url` on slow lookups such as work email instead of holding the connection",
          "Map old Proxycurl paths with the transition guide rather than guessing"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 56
          }
        ],
        "editorialScores": {
          "ergonomics": 68,
          "maintenance": 26,
          "payments": 40,
          "reliability": 65,
          "schema": 76,
          "security": 40,
          "transparency": 53
        },
        "provenanceScore": 68
      },
      "connect": {
        "http": "curl -G https://enrichlayer.com/api/v2/credit-balance -H \"Authorization: Bearer $ENRICH_LAYER_API_KEY\"",
        "claudeCode": "claude mcp add enrich-layer -e ENRICH_LAYER_API_KEY=$ENRICH_LAYER_API_KEY -- npx -y @enrichlayer/mcp-server",
        "config": {
          "mcpServers": {
            "enrich-layer": {
              "args": [
                "-y",
                "@enrichlayer/mcp-server"
              ],
              "command": "npx",
              "env": {
                "ENRICH_LAYER_API_KEY": "${ENRICH_LAYER_API_KEY}"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/lead.search",
        "tool": "https://letme.dev/enrich-layer"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Credit, $10 pack",
          "unit": "credit",
          "usd": 0.1,
          "note": "100 credits; one credit buys a person or company profile"
        },
        {
          "item": "Credit, $1,000 pack",
          "unit": "credit",
          "usd": 0.0216,
          "note": "46,297 credits"
        },
        {
          "item": "Starter plan",
          "unit": "month",
          "usd": 49,
          "note": "billed yearly at $588, 35,000 credits a year plus 5,000 bonus"
        },
        {
          "item": "Growth plan",
          "unit": "month",
          "usd": 299,
          "note": "billed yearly at $3,588, 350,000 credits a year plus 50,000 bonus"
        }
      ],
      "provenance": {
        "legalEntity": "Vertical Int, Inc.",
        "domain": "enrichlayer.com",
        "domainRegistered": "2025-04-05",
        "endpointOnVendorDomain": true,
        "terms": "https://enrichlayer.com/terms-of-use",
        "privacy": "https://enrichlayer.com/privacy-policy",
        "statusPage": "https://status.enrichlayer.com",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "Domain registered in April 2025, three months before Proxycurl shut down. The terms name Vertical Int, Inc. (Wyoming) with an address in Orinda, California, and don't mention Nubela or Proxycurl."
        ],
        "score": 68
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/enrich-layer.json",
      "live": {
        "slug": "enrich-layer",
        "probe": {
          "target": "https://enrichlayer.com/api/v2",
          "method": "get",
          "lastAt": "2026-10-04T23:48:07.988911007Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 213,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 232,
          "p95ms24h": 412,
          "samples24h": 272,
          "samples30d": 1100,
          "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": 270,
              "ok": 270
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.enrichlayer.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:40:00.066104114Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@enrichlayer/mcp-server",
            "version": "0.3.0",
            "seenAt": "2026-10-04T16:26:32.605133107Z"
          }
        ],
        "githubStars": 0,
        "npmWeekly": 28,
        "securityTxt": {
          "url": "https://enrichlayer.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:52.313180845Z"
        },
        "llmsTxt": {
          "url": "https://enrichlayer.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:45.113397809Z"
        },
        "domain": {
          "domain": "enrichlayer.com",
          "registered": "2025-04-05",
          "source": "https://rdap.verisign.com/com/v1/domain/enrichlayer.com",
          "checkedAt": "2026-10-04T13:09:29.714451174Z"
        },
        "pages": [
          {
            "url": "https://nubela.co/blog/goodbye-proxycurl/",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:17.3070239Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "22a06342f70c"
          },
          {
            "url": "https://enrichlayer.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:44:30.538712762Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "853a126d8a25"
          },
          {
            "url": "https://enrichlayer.com/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:44:32.826060616Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "fa71969716ac"
          },
          {
            "url": "https://enrichlayer.com/terms-of-use",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:44:34.873549699Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "9f3c494aa3cb"
          }
        ],
        "updatedAt": "2026-10-04T23:48:07.988911007Z"
      }
    },
    "summary": "Coresignal API + MCP has a score of 63.1 (B) against Enrich Layer API + MCP's 56 (C). Both do lead search. The largest gap is maintenance \u0026 community, 56 points."
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/coresignal-vs-enrich-layer",
    "json": "https://www.anchorterminal.com/compare/coresignal-vs-enrich-layer.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/coresignal-vs-enrich-layer.md",
    "slim": "https://www.anchorterminal.com/compare/coresignal-vs-enrich-layer.min.md"
  },
  "markdown": "Coresignal API + MCP has a score of 63.1 (B) against Enrich Layer API + MCP's 56 (C). Both do lead search. The largest gap is maintenance \u0026 community, 56 points.\n\n- Coresignal API + MCP: grade B, 63.1/100, rank #208 of 452. Markdown https://www.anchorterminal.com/tools/coresignal.md · JSON https://www.anchorterminal.com/api/v1/tools/coresignal.json\n- Enrich Layer API + MCP: grade C, 56/100, rank #309 of 452. Markdown https://www.anchorterminal.com/tools/enrich-layer.md · JSON https://www.anchorterminal.com/api/v1/tools/enrich-layer.json\n\n## Which one, for what\n\nPick Coresignal API + MCP for schema \u0026 documentation (+10), agent ergonomics (+5), security \u0026 auth (+18), maintenance \u0026 community (+56), transparency \u0026 trust (+12).\n\nPick Enrich Layer API + MCP for reliability (+10), payments \u0026 pricing (+20).\n\n## Score by category\n\n| Category | Weight | Coresignal API + MCP | Enrich Layer API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 55 | 65 | Enrich Layer API + MCP +10 |\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 | 68 | Coresignal API + MCP +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 58 | 40 | Coresignal API + MCP +18 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 40 | Enrich Layer API + MCP +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 82 | 26 | Coresignal API + MCP +56 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 73 | 61 | Coresignal API + MCP +12 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **63.1 · B** | **56 · C** | |\n\n## Facts side by side\n\n| Fact | Coresignal API + MCP | Enrich Layer API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Coresignal | Enrich Layer |\n| Hosted endpoint | `https://api.coresignal.com/cdapi` | `https://enrichlayer.com/api/v2` |\n| Transports | HTTP, Streamable HTTP | HTTP, stdio |\n| Auth | OAuth or key | API key |\n| Pricing | Paid | Pay per use |\n| x402 | no | no |\n| Licence | none | MIT |\n| Tools exposed | 5 | 25 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\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 | 2026-06-19 |\n| Popularity | 2 stars | 0 stars, 26 npm/wk |\n| Agent reviews | 3.5/5 (2) | 3/5 (2) |\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**Enrich Layer API + MCP.** Pay-as-you-go credits from $10, non-expiring unless idle for 18 months. Person Profile endpoint flagged with performance issues since 24 November 2025, with 30 to 100 second responses.\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### Enrich Layer API + MCP\n\n1. Top up once before testing. Trial keys run at 2 requests a minute\n2. Set the person profile timeout to at least 100 seconds\n3. Ask for `extra`, personal emails or phone numbers only when needed, since each adds credits\n4. Use `callback_url` on slow lookups such as work email instead of holding the connection\n5. Map old Proxycurl paths with the transition guide rather than guessing\n\n## Other comparisons with Coresignal API + MCP or Enrich Layer API + MCP\n\n- [Apollo API + MCP vs Coresignal API + MCP](https://www.anchorterminal.com/compare/apollo-vs-coresignal.md)\n- [Apollo API + MCP vs Enrich Layer API + MCP](https://www.anchorterminal.com/compare/apollo-vs-enrich-layer.md)\n- [Coresignal API + MCP vs Crustdata API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-crustdata.md)\n- [Coresignal API + MCP vs FullEnrich API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-fullenrich.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 Prospeo API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-prospeo.md)\n- [Crustdata API + MCP vs Enrich Layer API + MCP](https://www.anchorterminal.com/compare/crustdata-vs-enrich-layer.md)\n- [Enrich Layer API + MCP vs FullEnrich API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-fullenrich.md)\n- [Enrich Layer API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-hunter.md)\n- [Enrich Layer API + MCP vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-leadmagic.md)\n- [Enrich Layer API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-lusha.md)\n- [Enrich Layer API + MCP vs Prospeo API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-prospeo.md)\n- [Coresignal API + MCP vs Dropcontact API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-dropcontact.md)\n- [Dropcontact API + MCP vs Enrich Layer API + MCP](https://www.anchorterminal.com/compare/dropcontact-vs-enrich-layer.md)\n",
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      {
        "name": "Coresignal API + MCP vs Enrich Layer API + MCP",
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    "description": "Coresignal API + MCP has a score of 63.1 (B) against Enrich Layer API + MCP's 56 (C). Both do lead search. The largest gap is maintenance \u0026 community, 56 points. Category scores, facts, verdicts and agent notes side by side.",
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    "title": "Coresignal API + MCP vs Enrich Layer API + MCP for AI agents",
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