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Connect ChatGPT to pebblebase.

MCP URLhttps://mcp.pebblebase.dev/mcp

This is the only thing you paste. ChatGPT then asks pebblebase to sign you in.

Open ChatGPT plugins

Steps

  1. Go to chatgpt.com/plugins, choose +, then Add custom MCP server.
  2. Enter pebblebase as the Name, paste the pebblebase MCP URL as the Server URL, keep OAuth, check I understand and want to continue, and choose Create as a plugin.
  3. In the sign-in window, choose Create account, enter a username, and save a passkey. Already have an account? Choose Sign in.
  4. On the pebblebase plugin page, choose Try in chat, then paste the prompt.

Then start a new chat and describe what you want to make. Need a first idea? Pick a starting prompt.

Tools not showing? Start a new chat and try again. Still stuck? Email [email protected].

OpenAI's instructions · Steps checked October 13, 2026.

pebblebase is independent and not affiliated with or endorsed by Anthropic, OpenAI, or xAI.