> ## Documentation Index
> Fetch the complete documentation index at: https://fracta.quasarops.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# MCP Servers Catalog

> The bundled catalog of pre-configured MCP server definitions in mcp-servers/ and the schema of each server.yaml.

Fracta ships a catalog of pre-configured MCP server definitions in `mcp-servers/`. The catalog index lives at `mcp-servers/catalog.yaml`. Each server has its own `server.yaml`.

## Catalog index

| Server         | Category    | Status     | Notes                                   |
| -------------- | ----------- | ---------- | --------------------------------------- |
| `fracta`       | first-party | tested     | Built-in fracta MCP surface             |
| `elastic`      | security    | tested     | Elasticsearch MCP server (vendor image) |
| `vendor`       | security    | tested     | VendorSecurity (vendor) MCP server      |
| `notion`       | knowledge   | documented | Hosted MCP, OAuth                       |
| `obsidian`     | knowledge   | candidate  | Local API token                         |
| `readwise`     | knowledge   | documented | Hosted MCP, OAuth                       |
| `raindrop`     | knowledge   | documented | Hosted MCP, OAuth                       |
| `zotero`       | knowledge   | candidate  | Local API token                         |
| `google-drive` | knowledge   | documented | OAuth                                   |
| `logseq`       | knowledge   | candidate  | Local API                               |
| `joplin`       | knowledge   | candidate  | Local API                               |
| `apple-notes`  | knowledge   | candidate  | macOS-only                              |
| `noteplan`     | knowledge   | candidate  | macOS-only                              |
| `tana`         | knowledge   | candidate  | API token                               |

## Per-server configuration

## Authentication

For OAuth-protected servers, see [MCP Server Authentication](/guides/authentication/mcp-server-auth).