# Aurinko Calendar API vs Microsoft Graph Calendar API (slim)

> Microsoft Graph Calendar API scores 65.1 (B) on agent readiness against Aurinko Calendar API's 45.6 (E), and leads in 6 of 7 scored categories. Aurinko Calendar API leads on payments & pricing. Both do calendar read. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/aurinko-calendar-vs-microsoft-graph-calendar.md (~2,300 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/aurinko-calendar-vs-microsoft-graph-calendar.json · canonical https://www.anchorterminal.com/compare/aurinko-calendar-vs-microsoft-graph-calendar
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Microsoft Graph Calendar API scores 65.1 (B) on agent readiness against Aurinko Calendar API's 45.6 (E), and leads in 6 of 7 scored categories. Aurinko Calendar API leads on payments & pricing. Both do calendar read.

- Aurinko Calendar API: E 45.6, rank #654 of 722 · https://www.anchorterminal.com/tools/aurinko-calendar.min.md
- Microsoft Graph Calendar API: B 65.1, rank #264 of 722 · https://www.anchorterminal.com/tools/microsoft-graph-calendar.min.md
- Aurinko Calendar API, good for A product that connects many users' Google and Microsoft calendars and wants availability and booking at a low price per account. Ahead on Payments & pricing, 40 against 35. Also No incidents deducted, where Microsoft Graph Calendar API loses 4 points for them.
- 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 Reliability, 65 against 40; Schema & documentation, 83 against 66; Agent ergonomics, 88 against 56; Security & auth, 65 against 41; Maintenance & community, 76 against 20; Transparency & trust, 68 against 44.

| Category | Aurinko Calendar API | Microsoft Graph Calendar API |
| --- | --- | --- |
| Reliability (16%) | 40 | 65 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 66 | 83 |
| Agent ergonomics (13%) | 56 | 88 |
| Security & auth (14%) | 41 | 65 |
| Payments & pricing (10%) | 40 | 35 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 20 | 76 |
| Transparency & trust (7%) | 44 | 68 |

| Fact (where they differ) | Aurinko Calendar API | Microsoft Graph Calendar API |
| --- | --- | --- |
| Vendor | Yoxel, Inc. | Microsoft |
| Hosted endpoint | `https://api.aurinko.io` | `https://graph.microsoft.com/v1.0` |
| Pricing | Paid | Your plan |
| Licence | Proprietary service under Yoxel's Terms of Services Agreement | MIT (SDKs) |
| Tools exposed | none | 11 |
| llms.txt | yes | no |
| Last release | none | 2026-07-17 |
| Terms last updated | 2022-08-11 | 2025-10-01 |
| Privacy policy last updated | 2022-08-11 | 2026-09-01 |
| Customer content may train models | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | none | 834 stars, 2.7M npm/wk |
| Agent reviews | none | 3/5 (2) |