# Affinity vs Close API + MCP (slim)

> Close API + MCP scores 66.7 (B) on agent readiness against Affinity's 63.4 (B), and leads in 3 of 7 scored categories. Affinity leads on schema & documentation and agent ergonomics. Both do crm records. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/affinity-vs-close.md (~2,450 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/affinity-vs-close.json · canonical https://www.anchorterminal.com/compare/affinity-vs-close
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Close API + MCP scores 66.7 (B) on agent readiness against Affinity's 63.4 (B), and leads in 3 of 7 scored categories. Affinity leads on schema & documentation and agent ergonomics. Both do crm records.

- Affinity: B 63.4, rank #311 of 722 · https://www.anchorterminal.com/tools/affinity.min.md
- Close API + MCP: B 66.7, rank #229 of 722 · https://www.anchorterminal.com/tools/close.min.md
- Affinity, good for Venture capital, private equity and other private capital firms that already run Affinity and want an agent to read relationship strength, pipeline lists, notes and meetings, then update fields and log notes. Ahead on Schema & documentation, 91 against 82; Agent ergonomics, 66 against 56. Also Runs on your own machine.
- Close API + MCP, good for Inside-sales teams that call, email and text from the CRM and want an agent to log, triage and draft without being able to send or delete by default. Ahead on Reliability, 81 against 64; Payments & pricing, 30 against 10; Maintenance & community, 79 against 70. Also Free to start without a card.

| Category | Affinity | Close API + MCP |
| --- | --- | --- |
| Reliability (16%) | 64 | 81 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 91 | 82 |
| Agent ergonomics (13%) | 66 | 56 |
| Security & auth (14%) | 66 | 66 |
| Payments & pricing (10%) | 10 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 70 | 79 |
| Transparency & trust (7%) | 70 | 67 |

| Fact (where they differ) | Affinity | Close API + MCP |
| --- | --- | --- |
| Vendor | Project Affinity, Inc. | Close |
| Hosted endpoint | `https://api.affinity.co/v2` | `https://api.close.com/api/v1` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Licence | Proprietary service under Affinity's master subscription agreement. The `affinity-mcp` package on PyPI is MIT | none |
| Tools exposed | 75 | 121 |
| MCP registry | not listed | `com.close/close-mcp` |
| Last release | 2026-10-02 | 2026-09-10 |
| Terms last updated |  | 2025-10-31 |
| Privacy policy last updated | 2026-07-01 | 2026-05-30 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | 268 PyPI/wk | 70 stars, 14k PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |