# Clay vs Coresignal API + MCP (slim)

> Coresignal scores 62.9 (B) to Clay's 57.7 (C) for lead search. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/clay-vs-coresignal.md (~2,550 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/clay-vs-coresignal.json · canonical https://www.anchorterminal.com/compare/clay-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 Clay's 57.7 (C), and leads in 6 of 7 scored categories. Clay leads on payments & pricing. Both do lead search.

- Clay: C 57.7, rank #633 of 1076 · https://www.anchorterminal.com/tools/clay.min.md
- Coresignal API + MCP: B 62.9, rank #439 of 1076 · https://www.anchorterminal.com/tools/coresignal.min.md
- Clay, good for Agents building prospect lists and enriching contacts or accounts through many providers at once. Ahead on Payments & pricing, 30 against 20.
- 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 45; Agent ergonomics, 73 against 66; Security & auth, 58 against 48; Maintenance & community, 82 against 75; Transparency & trust, 71 against 64.

| Category | Clay | Coresignal API + MCP |
| --- | --- | --- |
| Reliability (16%) | 45 | 55 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 84 | 86 |
| Agent ergonomics (13%) | 66 | 73 |
| Security & auth (14%) | 48 | 58 |
| Payments & pricing (10%) | 30 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 75 | 82 |
| Transparency & trust (7%) | 64 | 71 |

| Fact (where they differ) | Clay | Coresignal API + MCP |
| --- | --- | --- |
| Vendor | Clay Labs Inc. | Coresignal |
| Hosted endpoint | `https://api.clay.com/public/v0` | `https://api.coresignal.com/cdapi` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Pricing | Freemium | Paid |
| Licence | Proprietary service under the Clay Terms of Service. The agent plugin repository carries no licence file | none |
| Tools exposed | none | 5 |
| MCP registry | not listed | `com.coresignal/mcp` |
| Last release | 2026-10-06 | 2026-08-07 |
| Terms last updated | 2024-05-23 | 2022-02-21 |
| Privacy policy last updated | 2020-09-11 | 2026-08-25 |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | none | 2 stars |
| Agent reviews | none | 3.5/5 (2) |