Designpin MCP Server

DesignPin MCP Server

An MCP server that lets any AI assistant push HTML prototypes to DesignPin for team review and read back reviewer feedback.

What this does

DesignPin is a tool for reviewing HTML prototypes with DOM-anchored comments. This package wraps the DesignPin REST API as a Model Context Protocol server, exposing three tools — createShareLink, uploadVersion, listComments — to any MCP-compatible AI client.

Once configured, your AI assistant — Claude Desktop, Cursor, VS Code (Copilot), Gemini CLI, or any other MCP-compatible client — can ship a generated HTML prototype to a shareable review link, pull back reviewer comments to incorporate, and push iterations as new versions, all from inside the same conversation that produced the design.

For ChatGPT users: ChatGPT does not currently support MCP servers. Use the direct REST API via Custom GPT Actions instead — no MCP server needed.

Install + run

The server is invoked by your MCP client; you don't run it directly during normal use. The simplest path is npx invocation, which fetches and runs without a global install:

npx -y @designpin/mcp-server --api-key dp_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx --project-id proj_example_abc123

For most workflows you'll set this in your MCP client's config file rather than running it manually — see Client config examples below.

To verify the install works:

npx -y @designpin/mcp-server --version
# → 0.1.0

npx -y @designpin/mcp-server --help
# → usage info

Get an API key

1. Open designpin.pro and sign in.
2. Open any project (or create one).
3. Click API & Integrations in the project header.
4. Click Generate new key, give it a name (e.g. "Claude Desktop").
5. Copy the key immediately — it's shown once and cannot be retrieved later.

Each key is scoped to a single project. Generate separate keys per client / use case so you can revoke them individually.

Configuration

Both CLI flags and environment variables are supported. Flags win when both are present.

Security note: CLI flags are visible in ps output on multi-user systems. Prefer environment variables on shared machines.

Tools

createShareLink

Create a public review link for an HTML prototype. No project setup required — creates a brand-new throwaway project. Rate-limited to 10 requests/hour per IP.

Returns: JSON with url, reviewToken, projectId, moduleId, versionId.

Example prompt to your AI assistant:

"Take this HTML and create a DesignPin share link titled 'Landing page hero V3'."

uploadVersion

Upload a new HTML version to an existing DesignPin module. Auto-increments versionNumber. Requires the API key + projectId from configuration plus a moduleId from the user.

Returns: JSON with url, versionId, versionNumber.

Example prompt:

"Push this revised HTML as a new version to module mod_example_def456 with the description 'Address pin #3 contrast feedback'."

listComments

Fetch comments visible on a specific version of a DesignPin module. Uses chronological cutoff semantics matching the web UI: a comment is visible on version V if its origin version is V or any earlier version.

Returns: JSON with a comments array and a summary string like "3 open, 1 resolved".

Example prompt:

"Get the comments on module mod_example_def456 at version ver_example_ghi789 and tell me what's blocking approval."

Client config examples

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "designpin": {
      "command": "npx",
      "args": ["-y", "@designpin/mcp-server"],
      "env": {
        "DESIGNPIN_API_KEY": "dp_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        "DESIGNPIN_PROJECT_ID": "proj_example_abc123"
      }
    }
  }
}

Restart Claude Desktop after saving.

Edit ~/.cursor/mcp.json:

{
  "mcpServers": {
    "designpin": {
      "command": "npx",
      "args": ["-y", "@designpin/mcp-server"],
      "env": {
        "DESIGNPIN_API_KEY": "dp_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        "DESIGNPIN_PROJECT_ID": "proj_example_abc123"
      }
    }
  }
}

Reload Cursor after saving.

Add to your VS Code user settings JSON or a workspace .vscode/mcp.json:

{
  "servers": {
    "designpin": {
      "command": "npx",
      "args": ["-y", "@designpin/mcp-server"],
      "env": {
        "DESIGNPIN_API_KEY": "dp_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        "DESIGNPIN_PROJECT_ID": "proj_example_abc123"
      }
    }
  }
}

Edit your Gemini CLI config (path varies by version). Both the env-style and the flag-style work; flag-style is shown here:

{
  "mcpServers": {
    "designpin": {
      "command": "npx",
      "args": [
        "-y", "@designpin/mcp-server",
        "--api-key", "dp_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        "--project-id", "proj_example_abc123"
      ]
    }
  }
}

Example conversation

You:  Generate a pricing page with three tiers (Free, Pro $12, Team $29).
      Push it to DesignPin so my team can review.

AI:   [generates HTML, calls createShareLink]
      Share link created. Send this to your team:
      https://designpin.pro/review/EXAMPLE_TOKEN_xyz

      Project: proj_example_abc123
      Module:  mod_example_def456
      Version: ver_example_ghi789

[team reviews and leaves 4 comments]

You:  Pull the feedback from module mod_example_def456 at version
      ver_example_ghi789 and address the must-fix comments.

AI:   [calls listComments]
      Open comments (4):
      - P0 Pin #1 "CTA contrast fails WCAG AA on the Pro tier"
      - P1 Pin #2 "Pricing hidden until hover — make always visible"
      - P1 Pin #3 "Annual toggle is ambiguous — show savings %"
      - P2 Pin #4 "Logo could link back to homepage"

      I'll regenerate the HTML with the two P0/P1 issues addressed.

You:  Push the revision.

AI:   [generates updated HTML, calls uploadVersion]
      v2 uploaded. Same review URL — your team can compare versions.

Direct REST API

If you want to call the DesignPin API without an MCP server, the OpenAPI 3.1 spec is published at:

https://designpin.pro/openapi.json

Import it into Postman, generate a client SDK, or use it directly with ChatGPT Custom GPT Actions.

Links

• DesignPin app: https://designpin.pro
• OpenAPI spec: https://designpin.pro/openapi.json
• GitHub: https://github.com/opjhabuilds/designpin-mcp-server
• Issues: https://github.com/opjhabuilds/designpin-mcp-server/issues

License

MIT © 2026 Omprakash Jha