> For the complete documentation index, see [llms.txt](https://docs.octo.travel/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.octo.travel/additional-resources.md).

# Additional Resources

- [Slack Workspace](https://docs.octo.travel/additional-resources/slack-workspace.md)
- [Self-Certification Tool](https://docs.octo.travel/additional-resources/self-certification-tool.md)
- [Postman Collections](https://docs.octo.travel/additional-resources/postman-collections.md)
- [Known Implementations](https://docs.octo.travel/additional-resources/known-implementations.md): See who already uses OCTO