> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/internal-developer-portal/3.0/working-with-apis/api-references.md).

# API References

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[Overview](/internal-developer-portal/3.0/working-with-apis/api-references/overview.md)
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[Backstage API](/internal-developer-portal/3.0/working-with-apis/api-references/public-api.md)
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