# Clay vs ZoomInfo API + MCP (slim)

> ZoomInfo scores 72.2 (BB) 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-zoominfo.md (~2,650 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/clay-vs-zoominfo.json · canonical https://www.anchorterminal.com/compare/clay-vs-zoominfo
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14

ZoomInfo API + MCP scores 72.2 (BB) on agent readiness against Clay's 57.7 (C), and leads in 6 of 7 scored categories. Both do lead search.

- Clay: C 57.7, rank #633 of 1076 · https://www.anchorterminal.com/tools/clay.min.md
- ZoomInfo API + MCP: BB 72.2, rank #113 of 1076 · https://www.anchorterminal.com/tools/zoominfo.min.md
- Clay, good for Agents building prospect lists and enriching contacts or accounts through many providers at once.
- ZoomInfo API + MCP, good for Sales and marketing agents that need company, contact, intent and business-event data from one vendor, with free search before paid enrichment. Ahead on Reliability, 87 against 45; Agent ergonomics, 71 against 66; Security & auth, 65 against 48; Payments & pricing, 40 against 30; Transparency & trust, 75 against 64. Also Agent-ready, a grade of BB or better.

| Category | Clay | ZoomInfo API + MCP |
| --- | --- | --- |
| Reliability (16%) | 45 | 87 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 84 | 84 |
| Agent ergonomics (13%) | 66 | 71 |
| Security & auth (14%) | 48 | 65 |
| Payments & pricing (10%) | 30 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 75 | 76 |
| Transparency & trust (7%) | 64 | 75 |

| Fact (where they differ) | Clay | ZoomInfo API + MCP |
| --- | --- | --- |
| Vendor | Clay Labs Inc. | ZoomInfo Technologies LLC |
| Hosted endpoint | `https://api.clay.com/public/v0` | `https://api.zoominfo.com/gtm` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth |
| Licence | Proprietary service under the Clay Terms of Service. The agent plugin repository carries no licence file | Proprietary service under ZoomInfo's Licence Terms and Conditions. The GTM CLI on GitHub is MIT |
| Tools exposed | none | 26 |
| Last release | 2026-10-06 | 2026-10-02 |
| Terms last updated | 2024-05-23 | no date given |
| Privacy policy last updated | 2020-09-11 | 2025-10-13 |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Popularity | none | 534 npm/wk |