"brieform" already exists error

Run `claude mcp remove brieform` first, then re-add it.

OAuth browser window doesn't open

Make sure your system has a default browser configured. Alternatively, copy the URL from the terminal output and open it manually.

Check that the MCP URL ends with /api/mcp/mcp and uses HTTPS in production. In local dev, HTTP on port 3000 is fine.

Claude Code · CLI

Build forms without leaving your terminal.

Add Brieform as an MCP server in Claude Code with one command. Works in every project session, no config files needed.

Create formsEdit fieldsSet themesPublishRead responsesExport CSV

Install

Requires a Claude subscription (Pro or above).

Run this command in your terminal:

Terminal

claude mcp add --transport http brieform https://brieform.app/api/mcp/mcp

1
Run the command
Paste the command above into your terminal. Claude Code adds Brieform as an MCP server and opens OAuth in your browser.
2
Authorize in your browser
A Brieform authorization page opens. Log in or sign up (free), then click Allow. The terminal completes setup automatically.
Authorize access
your-ai-client wants to access your Brieform account.
Requested permissions
Verify your identity
Read your name and avatar
Read your email address
Stay connected (refresh tokens)
Deny
Allow
Only allow access from apps you trust.
3
Use Brieform in Claude Code
Ask Claude Code to create a form. It calls the Brieform MCP tools directly with no extra configuration needed.

›“Create a contact form for my project”

›“Show me my published forms”

›“Build a feedback form and give me the public URL”

Also available on

Free forever for your first form. No card required. EU-hosted.

No credit card · Works with Claude, ChatGPT, Cursor