Connect Pennyweight to Claude
Claude is the smoothest way to use Pennyweight. You add the connector once on the web or desktop, and it works in the Claude mobile apps too. Custom connectors work on Free, Pro, Max, Team, and Enterprise plans (Free is limited to one custom connector).
Claude (web, desktop, mobile)
- Go to Customize → Connectors (also reachable at claude.ai/customize/connectors). On Team and Enterprise plans, only an Owner can add a connector for the organization — members then enable it individually.
- Click the + button next to Connectors, then Add custom connector. Adding one is supported on the web and in Claude Desktop; doing it from the mobile apps is still in beta, so start on a computer.
- Name it Pennyweight and paste the URL: . Click Add.
- Click Connect. You’ll bounce to Pennyweight to sign in, complete two-factor, and enter your passphrase — then back to Claude. This is what binds the connector to your account.
- In a chat, enable Pennyweight via the + button on the lower-left of the message box, then Connectors. The mobile apps pick the connector up automatically.
Claude Code (command line)
- Run:
- Run /mcpand follow the browser flow to sign in, complete two-factor, and enter your passphrase. Claude Code shows a startup notice when a server still needs authorizing, so you’ll be reminded — but the sign-in doesn’t start on its own. From the shell, does the same thing.
First time? Try asking
- “What can you do?” — Pennyweight walks you through its tools.
- “Show me my dining charges last month.”
- “Categorize the Adobe charge as business software.”
If something goes wrong
If the connector fails to authenticate, the fix is almost always to disconnect and reconnect it from Customize → Connectors. See manage & revoke access.
The grant lasts 30 days of active use. Your AI client never holds your keys — it gets an opaque token Pennyweight uses to decrypt your data on-demand, for tool calls only.