Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Create, edit, share and export hand-drawn LetDraw diagrams, from code or a prompt.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
LETDRAW_TOKEN, LETDRAW_MCP_URL, AuthorizationValues marked secret are keys to your account. Never share them or paste them into a chat.
You need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"letdraw": {
"command": "npx",
"args": [
"-y",
"@letdraw/mcp"
],
"env": {
"LETDRAW_TOKEN": "your-value",
"LETDRAW_MCP_URL": "your-value"
}
}
}
}Run this in your terminal
claude mcp add --transport http letdraw https://api.letdraw.com/mcp --header 'Authorization: your-value'claude mcp add letdraw --env LETDRAW_TOKEN=your-value --env LETDRAW_MCP_URL=your-value -- npx -y @letdraw/mcpFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"letdraw": {
"url": "https://api.letdraw.com/mcp",
"headers": {
"Authorization": "your-value"
}
}
}
}Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"letdraw": {
"command": "npx",
"args": [
"-y",
"@letdraw/mcp"
],
"env": {
"LETDRAW_TOKEN": "your-value",
"LETDRAW_MCP_URL": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"letdraw": {
"type": "http",
"url": "https://api.letdraw.com/mcp",
"headers": {
"Authorization": "your-value"
}
}
}
}Paste into .vscode/mcp.json in your project
{
"servers": {
"letdraw": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@letdraw/mcp"
],
"env": {
"LETDRAW_TOKEN": "your-value",
"LETDRAW_MCP_URL": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
LETDRAW_MCP_URL envAuthorization secret required HTTP headerThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
We have not read this server’s tool list yet; we check endpoints in rotation.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
The registry name was verified with the GitHub account letdraw, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
You need to fill in: LETDRAW_TOKEN, Authorization
Either way works: install it on your computer or connect to the cloud version.
The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 33 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, AI Deprecations
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
LetDraw MCP + REST
Connect AI assistants and your own scripts to LetDraw — read and author diagrams in your account through the Model Context Protocol (MCP) or the public REST API .
LetDraw is a hand-drawn–style online whiteboard and diagramming app. With this integration an MCP client (desktop AI apps, Cursor, VS Code, Codex, …) or any HTTP client can list workspaces, create and update diagrams, build a diagram from code (compose / Kubernetes / DOT / Terraform / SQL / …), stamp real product icons, export to Mermaid or D2, and share read-only links.
This repository ships the client-side integration: a zero-config MCP
bridge, a typed REST SDK, the API spec, and setup docs. The LetDraw app and
server are not part of this repo.
| Path | What it is |
|---|---|
packages/mcp | @letdraw/mcp — zero-config stdio bridge to the hosted MCP server (npx @letdraw/mcp) |
packages/sdk | @letdraw/sdk — typed REST client for scripting |
spec/mcp-tools.md | The MCP tools, resources, and scopes |
spec/openapi.yaml | OpenAPI 3.1 spec for the REST API |
spec/capabilities.md | "How to draw well in LetDraw" guide for AI clients |
docs/ | Getting started + per-client setup (desktop apps, HTTP clients, Cursor, VS Code, Codex) |
examples/ | Copy-paste recipes |
REST base https://api.letdraw.com/api-v1
MCP URL https://api.letdraw.com/mcp
Both authenticate with a personal API token (Authorization: Bearer ld_live_…), not a login session. Create one in the LetDraw app under Account → Developer. The exact URLs and a ready-to-paste client config are shown there too.
The hosted server speaks Streamable-HTTP, so most clients connect directly. For a stdio client, or for the simplest possible setup, use the bridge:
// MCP client config (mcpServers block)
{ "mcpServers": { "letdraw": { "command": "npx", "args": ["-y", "@letdraw/mcp"], "env": { "LETDRAW_TOKEN": "ld_live_YOUR_TOKEN" } } } }
See docs/clients for desktop apps, HTTP clients, Cursor, VS Code and Codex.
curl https://api.letdraw.com/api-v1/workspaces \
-H "Authorization: Bearer ld_live_YOUR_TOKEN"
Or with the SDK:
import { LetdrawClient } from '@letdraw/sdk';
const ld = new LetdrawClient({ token: process.env.LETDRAW_TOKEN! }); const { workspaces } = await ld.listWorkspaces();
Tokens carry scopes; each tool/route requires one:
diagrams:read — list/get workspaces, folders, diagrams, iconsdiagrams:write — create/update/delete/share diagrams, from-codeexport — export to Mermaid / D2ai:generate — generate a diagram from a prompt (uses your own AI key)MIT — see LICENSE. "LetDraw" and the LetDraw logo are trademarks of their owner; see NOTICE.md.