# Clearbit vs Coresignal API + MCP (slim)

> Coresignal scores 62.9 (B) to Clearbit's 13.5 (F) for lead enrichment. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/clearbit-vs-coresignal.md (~2,550 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/clearbit-vs-coresignal.json · canonical https://www.anchorterminal.com/compare/clearbit-vs-coresignal
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14

Coresignal API + MCP scores 62.9 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category. Both do lead enrichment.

- Clearbit: F 13.5, rank #1056 of 1076 · https://www.anchorterminal.com/tools/clearbit.min.md
- Coresignal API + MCP: B 62.9, rank #439 of 1076 · https://www.anchorterminal.com/tools/coresignal.min.md
- Clearbit, good for Only for teams that already hold a Clearbit contract.
- Coresignal API + MCP, good for Company and workforce research, headcount history and hiring signals at volume, and for pipelines that want raw records. Ahead on Reliability, 55 against 30; Schema & documentation, 86 against 0; Agent ergonomics, 73 against 0; Security & auth, 58 against 8; Payments & pricing, 20 against 0; Maintenance & community, 82 against 4; Transparency & trust, 71 against 66. Also A hosted endpoint, with nothing to install.

| Category | Clearbit | Coresignal API + MCP |
| --- | --- | --- |
| Reliability (16%) | 30 | 55 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 0 | 86 |
| Agent ergonomics (13%) | 0 | 73 |
| Security & auth (14%) | 8 | 58 |
| Payments & pricing (10%) | 0 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 4 | 82 |
| Transparency & trust (7%) | 66 | 71 |

| Fact (where they differ) | Clearbit | Coresignal API + MCP |
| --- | --- | --- |
| Vendor | HubSpot, Inc. | Coresignal |
| Hosted endpoint | no (local only) | `https://api.coresignal.com/cdapi` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| Licence | Proprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brand | none |
| Tools exposed | none | 5 |
| llms.txt | no | yes |
| MCP registry | not listed | `com.coresignal/mcp` |
| Last release | 2025-12-08 | 2026-08-07 |
| Terms last updated | 2025-05-30 | 2022-02-21 |
| Privacy policy last updated | 2026-08-31 | 2026-08-25 |
| Customer content may train models | yes | not found in the text |
| Popularity | none | 2 stars |
| Agent reviews | none | 3.5/5 (2) |