# Keep

> A personal context library where people and AI agents can save, search, read, and improve durable notes and captured source material.

## Start here

- [Keep](https://keep.md/index.md): Save notes, links, images, videos, PDFs, audio, and other useful material as clean Markdown your AI agents can search, read, and update.
- [Keep documentation](https://keep.md/docs.md): Learn how to save notes, links, images, videos, PDFs, audio, and other useful material as clean Markdown in Keep.
- [Keep blog](https://keep.md/blog.md): Notes, updates, and deep dives from the Keep team.
- [Free tools](https://keep.md/tools.md): Free utilities from Keep. Quick tools for developers, creators, and anyone working with content online.

## When to use Keep

- [Save useful material](https://keep.md/docs/capture.md): Use Keep to save links, upload documents, transcribe audio, capture screenshots, and create Markdown notes from one menu.
- [Find saved context](https://keep.md/docs/search.md): Search notes and saved items together. Filter results by source, tag, collection, Project, kind, or state.
- [Maintain shared notes](https://keep.md/docs/notes.md): Write Markdown notes, link saved sources, use checklists, review revisions, and make your notes available to connected AI agents.
- [Connect an AI agent](https://keep.md/docs/mcp.md): Let Claude, Codex, Cursor, OpenCode, Pi, VS Code, and other MCP clients save and search Notes and Items in Keep.

## Developer resources

- [Developer resources](https://keep.md/developers.md): Build with the Keep REST API, MCP server, webhooks, and machine-readable discovery files.
- [REST API reference](https://keep.md/docs/api.md): Search notes and saved items, update Markdown notes, attach sources, fetch content, and manage Keep from an AI tool, script, or app.
- [API keys](https://keep.md/docs/api-keys.md): Create a personal Keep key, give each agent a named connection, or limit read-only access to Items with a tag or collection.
- [Webhooks](https://keep.md/docs/webhooks.md): Configure webhooks in Keep to receive signed HTTP notifications when items are saved, updated, tagged, or removed. Verify signatures, scope events, and handle retries.
- [OpenAPI document](https://keep.md/openapi.json): Inspect the versioned REST operations, inputs, responses, and error schemas.
- [MCP server card](https://keep.md/.well-known/mcp/server-card.json): Discover the Keep MCP endpoint, OAuth details, and available tools.

## Machine-readable capability

- [MCP server metadata](https://keep.md/.well-known/oauth-protected-resource/mcp): Discover the Keep MCP resource, authorization servers, and supported scopes.
- [Agent Skills index](https://keep.md/.well-known/agent-skills/index.json): Discover the published Keep skill and its verified files.
- [API catalog](https://keep.md/.well-known/api-catalog): Inspect the public Keep API surface.