# Cal.com API v2 + MCP vs Microsoft Graph Calendar API (slim)

> Microsoft Graph Calendar API has a score of 65.6 (B) against Cal.com API v2 + MCP's 57.5 (C). Both do calendar read. The largest gap is agent ergonomics, 38 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cal-com-vs-microsoft-graph-calendar.md (~1,550 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/cal-com-vs-microsoft-graph-calendar.json · canonical https://www.anchorterminal.com/compare/cal-com-vs-microsoft-graph-calendar
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Microsoft Graph Calendar API has a score of 65.6 (B) against Cal.com API v2 + MCP's 57.5 (C). Both do calendar read. The largest gap is agent ergonomics, 38 points.

- Cal.com API v2 + MCP: C 57.5, rank #292 of 452 · https://www.anchorterminal.com/tools/cal-com.min.md
- Microsoft Graph Calendar API: B 65.6, rank #170 of 452 · https://www.anchorterminal.com/tools/microsoft-graph-calendar.min.md
- Pick Cal.com API v2 + MCP for transparency & trust (+8). Pick Microsoft Graph Calendar API for reliability (+5), schema & documentation (+7), agent ergonomics (+38), security & auth (+9), payments & pricing (+5), maintenance & community (+26).

| Category | Cal.com API v2 + MCP | Microsoft Graph Calendar API |
| --- | --- | --- |
| Reliability (16%) | 60 | 65 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 76 | 83 |
| Agent ergonomics (13%) | 50 | 88 |
| Security & auth (14%) | 56 | 65 |
| Payments & pricing (10%) | 30 | 35 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 50 | 76 |
| Transparency & trust (7%) | 81 | 73 |