> For the complete documentation index, see [llms.txt](https://k-ai.gitbook.io/knowledge-ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://k-ai.gitbook.io/knowledge-ai/reference/reference.md).

# Overview

Shared technical reference for the K-AI Platform.

| Page                                                                | Content                                                                                                                                 |
| ------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
| [OpenAPI — Platform API](/knowledge-ai/reference/platform-api.md)   | 38 operations: organizations, instances, members, and Organization API keys. Auth: Organization API key → Bearer, or `kai_auth` cookie. |
| [OpenAPI — Retrieval API](/knowledge-ai/reference/retrieval-api.md) | 7 operations: list instances, list/get/batch documents, semantic node search, chunk expansion, whole-document reading. Auth: OAuth 2.1. |
| [OpenAPI — Audit API](/knowledge-ai/reference/audit-api.md)         | 69 operations across 9 domains. 22 marked `x-mcp-exposed: true` (curated MCP subset). Auth: OAuth 2.1 or `kai_auth` cookie.             |
| [Glossary](/knowledge-ai/reference/glossary.md)                     | Canonical DKP terminology with data-world equivalents.                                                                                  |
| [Errors & status codes](/knowledge-ai/reference/errors.md)          | HTTP status codes and per-API error semantics.                                                                                          |
| [Changelog](/knowledge-ai/reference/changelog.md)                   | Consolidated platform changelog.                                                                                                        |