Part3 Developers

Claude Code

Connect Part3 to Claude Code (CLI) in one command.

Claude Code is Anthropic's terminal-based AI coding assistant. Part3 ships a first-class MCP integration.

One-liner

claude mcp add --transport http part3 https://mcp.part3.io

No header, no secret. On first use Claude Code opens a browser to the Part3 sign-in page, then to a consent screen where you approve the requested access. After that, tokens refresh automatically and you only re-authenticate every ~90 days.

Prime-only access

MCP is currently limited to users who are a Project Prime on at least one project, plus super-duper-admins. If you're not, the consent screen will show an access-denied page instead of completing the flow.

Settings file (alternative)

If you'd rather edit a config file, add this to .claude/settings.local.json (per-project, gitignored) or ~/.claude/settings.local.json (global):

{
  "mcpServers": {
    "part3": {
      "type": "url",
      "url": "https://mcp.part3.io"
    }
  }
}

No headers field — Claude Code discovers the OAuth endpoints automatically.

Verify

Restart Claude Code, then run /mcp. You should see part3 listed with its available tools. Ask a question:

List my three most recent projects.

If Claude responds with a project list, you're wired up.

Troubleshooting

On this page