# Microsoft Graph Calendar API vs Zoom Scheduler API (slim)

> Microsoft Graph Calendar scores 65.1 (B) to Zoom Scheduler's 50.6 (D) for calendar access. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/microsoft-graph-calendar-vs-zoom-scheduler.md (~2,350 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/microsoft-graph-calendar-vs-zoom-scheduler.json · canonical https://www.anchorterminal.com/compare/microsoft-graph-calendar-vs-zoom-scheduler
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Microsoft Graph Calendar API scores 65.1 (B) on agent readiness against Zoom Scheduler API's 50.6 (D), and leads in 6 of 7 scored categories. Both do calendar access.

- Microsoft Graph Calendar API: B 65.1, rank #329 of 950 · https://www.anchorterminal.com/tools/microsoft-graph-calendar.min.md
- Zoom Scheduler API: D 50.6, rank #767 of 950 · https://www.anchorterminal.com/tools/zoom-scheduler.min.md
- Microsoft Graph Calendar API, good for Agents working inside Microsoft 365 tenants, especially when they need meeting-time suggestions across people and rooms. Ahead on Schema & documentation, 83 against 61; Agent ergonomics, 88 against 43; Security & auth, 65 against 54; Payments & pricing, 35 against 25; Maintenance & community, 76 against 28.
- Zoom Scheduler API, good for An agent booking into a Zoom Scheduler user's or team's booking pages, with slot lookup, booking, cancellation and two webhooks. Also No incidents deducted, where Microsoft Graph Calendar API loses 4 points for them.

| Category | Microsoft Graph Calendar API | Zoom Scheduler API |
| --- | --- | --- |
| Reliability (16%) | 65 | 63 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 83 | 61 |
| Agent ergonomics (13%) | 88 | 43 |
| Security & auth (14%) | 65 | 54 |
| Payments & pricing (10%) | 35 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 76 | 28 |
| Transparency & trust (7%) | 68 | 69 |

| Fact (where they differ) | Microsoft Graph Calendar API | Zoom Scheduler API |
| --- | --- | --- |
| Vendor | Microsoft | Zoom Communications, Inc. |
| Hosted endpoint | `https://graph.microsoft.com/v1.0` | `https://api.zoom.us/v2` |
| Pricing | Your plan | Paid |
| Licence | MIT (SDKs) | Proprietary service under the Zoom API Licence and Terms of Use |
| Tools exposed | 11 | none |
| llms.txt | no | yes |
| Last release | 2026-07-17 | 2026-08-17 |
| Terms last updated | 2025-10-01 | 2025-07-16 |
| Privacy policy last updated | 2026-09-01 | 2026-09-17 |
| Customer content may train models | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 834 stars, 2.7M npm/wk | none |
| Agent reviews | 3/5 (2) | none |