# Docsy MCP server

> Look up version-aware framework and SDK documentation with links back to the original source pages.

- Listing: https://mcp.tc/i/docsy
- Connect: use the server's own URL `https://docsy.remcp.site/mcp/registry` (OAuth sign-in at the server); clients connect to it directly. The listing link is a page, not an MCP endpoint.
- Type: remote (Streamable HTTP)
- Auth: OAuth sign-in
- Category: [Docs & Knowledge](https://mcp.tc/c/docs-knowledge)
- Vendor: ReMCP
- Homepage: <https://docsy.remcp.site>

## About

Docsy is a documentation index for libraries, frameworks, SDKs and APIs. It resolves a package name to a library ID, lists indexed versions, and returns documentation passages and code examples with the original source URL attached. All tools are read-only.

It runs as a hosted Streamable HTTP endpoint at https://docsy.remcp.site/mcp/registry. No sign-in or API key is needed for read-only retrieval. An optional account key is available for usage tracking. The client plugin manifests are open source under the MIT license.

## What it can do

- Resolve a package or product name to a library ID
- Query version-specific documentation and code examples
- List indexed versions and available stable releases
- Search all public indexed documentation
- Fetch a single documentation chunk by stable ID
- Get original source URLs for every result

## Tools (5)

- `resolve-library-id`: Resolve a package or product name to a Docsy library ID. (read-only)
- `query-docs`: Retrieve version-aware documentation and code examples from one library. (read-only)
- `list-library-versions`: List indexed versions and available stable GitHub releases for a library. (read-only)
- `search`: Search all public indexed documentation, returning stable IDs and URLs. (read-only)
- `fetch`: Fetch one search result by its stable ID. (read-only)

## Example prompts

- "Show how to clean up a useEffect subscription in React, using the current docs."
- "List the indexed versions of Next.js in Docsy."
- "Search the docs for how to configure retries in the AWS SDK."
- "Find the Docsy library ID for Tailwind CSS and show its dark mode docs."

## Install

### Claude Code

1. Run this in a terminal, in your project folder:

```bash
claude mcp add --transport http docsy https://docsy.remcp.site/mcp/registry
```

2. Start Claude Code, type `/mcp`, pick **docsy** and choose **Authenticate**. A browser window opens for the ReMCP sign-in.

Add `--scope user` to make it available in every project, not just this one.

### Claude Desktop

1. Open **Customize → Connectors**, click **+ Add**, then **Add custom connector**.

2. Name it **Docsy** and paste this URL:

```url
https://docsy.remcp.site/mcp/registry
```

3. Click **Add**, then **Connect**, and sign in when ReMCP asks.

Claude Desktop’s JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too.

### claude.ai

1. Open the connector form on claude.ai. This button fills in the name and URL for you:

[Add to claude.ai](<https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Docsy&connectorUrl=https%3A%2F%2Fdocsy.remcp.site%2Fmcp%2Fregistry>) (opens connector settings)

2. Check that the URL reads `https://docsy.remcp.site/mcp/registry` and click **Add**.

3. Click **Connect** and sign in when ReMCP asks.

Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under **Organization settings → Connectors**.

### ChatGPT

1. On chatgpt.com, go to **Plugins**, select **+**, then **Add custom MCP server**.

2. Enter a name for the server.

3. Under **Connection**, paste `https://docsy.remcp.site/mcp/registry` as the server URL, then for authentication choose **OAuth**. ChatGPT sends you to ReMCP to sign in.

4. Check **I understand and want to continue**, then select **Create as a plugin**.

Whether you can add a custom MCP server depends on your ChatGPT plan and your workspace permissions (in Business workspaces, admins and owners can).

### Cursor

[Add to Cursor](<https://cursor.com/install-mcp?name=docsy&config=eyJ1cmwiOiJodHRwczovL2RvY3N5LnJlbWNwLnNpdGUvbWNwL3JlZ2lzdHJ5In0%3D>) (opens Cursor)

Or add it by hand to `~/.cursor/mcp.json` (all projects) or `.cursor/mcp.json` (this project):

`mcp.json`:

```json
{
  "mcpServers": {
    "docsy": {
      "url": "https://docsy.remcp.site/mcp/registry"
    }
  }
}
```

Cursor shows **Needs authentication** next to the server. Click the button beside it to sign in.

### VS Code

[Install in VS Code](<https://vscode.dev/redirect/mcp/install?name=docsy&config=%7B%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fdocsy.remcp.site%2Fmcp%2Fregistry%22%7D>) (opens VS Code)

Or from a terminal:

```bash
code --add-mcp '{"name":"docsy","type":"http","url":"https://docsy.remcp.site/mcp/registry"}'
```

Or commit it to the repo in `.vscode/mcp.json`:

`.vscode/mcp.json`:

```json
{
  "servers": {
    "docsy": {
      "type": "http",
      "url": "https://docsy.remcp.site/mcp/registry"
    }
  }
}
```

VS Code asks you to sign in the first time the server starts.

### Devin Desktop

1. Add it to `~/.config/devin/mcp_config.json` (macOS and Linux) or `%APPDATA%\devin\mcp_config.json` (Windows):

`mcp_config.json`:

```json
{
  "mcpServers": {
    "docsy": {
      "serverUrl": "https://docsy.remcp.site/mcp/registry"
    }
  }
}
```

2. Refresh the MCP server list in Cascade and sign in when asked.

Devin Desktop is the new name for Windsurf. It reads `serverUrl` (or `url`) for remote servers.

### Codex

```bash
codex mcp add docsy --url https://docsy.remcp.site/mcp/registry
codex mcp login docsy
```

Or edit `~/.codex/config.toml` directly:

`config.toml`:

```toml
[mcp_servers.docsy]
url = "https://docsy.remcp.site/mcp/registry"
```

### Gemini CLI

```bash
gemini mcp add --transport http docsy https://docsy.remcp.site/mcp/registry
```

Then, inside Gemini CLI, run `/mcp auth docsy` to sign in.

This adds it to the current project. Add `-s user` to use it everywhere.

### Any client

Most clients accept this shape. Some name the URL field differently: `serverUrl` in Devin Desktop, `httpUrl` in Gemini CLI’s settings file.

```json
{
  "mcpServers": {
    "docsy": {
      "type": "http",
      "url": "https://docsy.remcp.site/mcp/registry"
    }
  }
}
```

Zed puts servers under `context_servers` in its settings. Cline needs `"type": "streamableHttp"`, or it assumes SSE.

Client only starts local servers? Bridge it with `npx -y mcp-remote https://docsy.remcp.site/mcp/registry`.

## Details

- Server version: 0.1.0
- MCP protocol version: 2026-07-28
- Last checked: 2026-11-14 (reachable, asks for credentials)
- Listed: 2026-10-26
- Updated: 2026-10-30

---
Source: https://mcp.tc/i/docsy (mcp.tc is an independent directory, not affiliated with this server's publisher). Corrections: https://mcp.tc/report