# Whimsical MCP server

> Create and edit flowcharts, mind maps, wireframes and docs in Whimsical, and search your workspace.

- Listing: https://mcp.tc/i/whimsical
- Connect: use the server's own URL `https://mcp.whimsical.com/mcp` (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: [Design, Websites & CMS](https://mcp.tc/c/design)
- Vendor: Whimsical
- Homepage: <https://whimsical.com/integrations/mcp>
- Repository: <https://github.com/WhimsicalCode/mcp-server-guide>

## About

Connects an AI assistant to a Whimsical workspace. It can create and edit boards, docs, flowcharts, mind maps, sequence diagrams, wireframes, tables and sticky notes, and it can read, search and comment on existing content.

The server is hosted at https://mcp.whimsical.com/mcp and uses Streamable HTTP. Users sign in with their Whimsical account through OAuth, so no API key is needed. A free Whimsical account can use every tool.

## What it can do

- Generate flowcharts, mind maps and sequence diagrams from a description
- Create wireframes for app screens and features
- Edit existing boards: shapes, text and layout
- Create and update Whimsical docs
- Search the workspace by file name or content
- Read structured content from existing boards

## Example prompts

- "Create a flowchart in Whimsical for a user login flow with error retry"
- "Make a mind map in Whimsical to brainstorm features for a mobile app"
- "Search my Whimsical workspace for 'API design' and summarize what you find"
- "Create a wireframe for a settings page with sidebar navigation and a profile form"

## Install

### Claude Code

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

```bash
claude mcp add --transport http whimsical https://mcp.whimsical.com/mcp
```

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

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

### Claude Desktop

1. Open **Settings → Connectors** and click **Add custom connector**.

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

```url
https://mcp.whimsical.com/mcp
```

3. Click **Add**, then **Connect**, and sign in when Whimsical 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=Whimsical&connectorUrl=https%3A%2F%2Fmcp.whimsical.com%2Fmcp>) (opens connector settings)

2. Check that the URL reads `https://mcp.whimsical.com/mcp` and click **Add**.

3. Click **Connect** and sign in when Whimsical 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, open **Settings → Security and login** and turn on **Developer mode**.

2. Go to `chatgpt.com/plugins` and click **+** to create an app for a remote MCP server.

3. Paste `https://mcp.whimsical.com/mcp` as the server URL and choose **OAuth**. ChatGPT sends you to Whimsical to sign in.

Developer mode is available on the web for Plus, Pro, Business, Enterprise and Education accounts.

### Cursor

[Add to Cursor](<https://cursor.com/install-mcp?name=whimsical&config=eyJ1cmwiOiJodHRwczovL21jcC53aGltc2ljYWwuY29tL21jcCJ9>) (opens Cursor)

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

`mcp.json`:

```json
{
  "mcpServers": {
    "whimsical": {
      "url": "https://mcp.whimsical.com/mcp"
    }
  }
}
```

Cursor shows **Needs login** next to the server. Click it to sign in.

### VS Code

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

Or from a terminal:

```bash
code --add-mcp '{"name":"whimsical","type":"http","url":"https://mcp.whimsical.com/mcp"}'
```

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

`.vscode/mcp.json`:

```json
{
  "servers": {
    "whimsical": {
      "type": "http",
      "url": "https://mcp.whimsical.com/mcp"
    }
  }
}
```

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": {
    "whimsical": {
      "serverUrl": "https://mcp.whimsical.com/mcp"
    }
  }
}
```

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 whimsical --url https://mcp.whimsical.com/mcp
codex mcp login whimsical
```

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

`config.toml`:

```toml
[mcp_servers.whimsical]
url = "https://mcp.whimsical.com/mcp"
```

### Gemini CLI

```bash
gemini mcp add --transport http whimsical https://mcp.whimsical.com/mcp
```

Then, inside Gemini CLI, run `/mcp auth whimsical` 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": {
    "whimsical": {
      "type": "http",
      "url": "https://mcp.whimsical.com/mcp"
    }
  }
}
```

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://mcp.whimsical.com/mcp`.

## Details

- Server version: 1.1.0
- Last checked: 2026-10-03 (reachable, asks for credentials)
- Listed: 2026-10-03
- Updated: 2026-10-03

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