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ChatGPT can connect to Tyms through custom MCP connectors (available on supported ChatGPT plans). UI labels may say Connectors or Apps depending on your plan and product updates.

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Before you start

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Steps

1

Open connector settings

Open ChatGPT settings for Connectors / custom MCP connectors.
2

Create a connector

Create a connector with:
  • Server URL: https://mcp.usetyms.com (read-only) or https://mcp.usetyms.com/full (read + write)
  • Auth: OAuth
  • Client ID (when requested): usetyms-mcp-chatgpt
3

Complete Tyms OAuth

Sign in to Tyms when prompted and approve the business.
4

Enable the connector in a chat

Turn the connector on in a chat before asking accounting questions.

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Domain verification (if asked)

If ChatGPT asks for a domain verification challenge, Tyms serves it at
https://mcp.usetyms.com/.well-known/openai-apps-challenge.

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Example prompts

Show expenses for March and highlight the top 5 categories.
Pull the trial balance and flag any accounts that look unusual.
More: Example prompts.

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Tips

  • Start on read-only unless you need ChatGPT to create or change records.
  • Keep human confirmation on for write actions when using /full.
  • For other platforms, see Claude, Perplexity, or Other clients.