Last Updated: 2026
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API documentation lives in different places depending on the platform/vendor, so here’s a clear, practical map you can rely on
1. Cloud Platforms (Most Common)
- https://learn.microsoft.com/en-us/rest/api/
- Azure Resource Manager (ARM)
- Microsoft Graph
- Defender, Sentinel, Entra ID (Azure AD)
- Storage, Compute, Networking
- Most important for you:
- Microsoft Graph API https://learn.microsoft.com/en-us/graph/overview
2. AWS APIs
- https://docs.aws.amazon.com/
- Each service has its own API reference
- Look for “API Reference” under a service
3. Google Cloud APIs
- https://cloud.google.com/apis/docs/overview
4. SaaS & Business Platforms
- Common SaaS APIs
- Google APIs – https://developers.google.com/apis-explorer
- Slack – https://api.slack.com/
- Zoom – https://developers.zoom.us/docs/api/
- GitHub – https://docs.github.com/en/rest
5. Open / Public API Directories
- Postman API Network: https://www.postman.com/explore/apis
- RapidAPI Hub: https://rapidapi.com/hub
- APIs.guru (OpenAPI Directory) https://apis.guru/
6. How APIs Are Usually Documented
- OpenAPI / Swagger docs (/swagger or /openapi.json)
- Interactive UI
- Example requests
- Authentication methods (OAuth2, API key, token)
7. Changes to this page
- We may update this Page periodically. Updates will be posted on this page.
8. Contact Us
- If you have any questions regarding this Privacy Policy, please contact us at:
- +1 (555) 123-4567
- info@entro.com