> ## Documentation Index
> Fetch the complete documentation index at: https://developer.usetyms.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ChatGPT

> Connect Tyms MCP to ChatGPT using a custom MCP / Apps connector.

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.

## Before you start

| Field                         | Value                          |
| ----------------------------- | ------------------------------ |
| **Server URL (read-only)**    | `https://mcp.usetyms.com`      |
| **Server URL (read + write)** | `https://mcp.usetyms.com/full` |
| **Auth**                      | OAuth                          |
| **Client ID**                 | `usetyms-mcp-chatgpt`          |

## Steps

<Steps>
  <Step title="Open connector settings">
    Open ChatGPT settings for **Connectors** / custom MCP connectors.
  </Step>

  <Step title="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`
  </Step>

  <Step title="Complete Tyms OAuth">
    Sign in to Tyms when prompted and approve the business.
  </Step>

  <Step title="Enable the connector in a chat">
    Turn the connector on in a chat before asking accounting questions.
  </Step>
</Steps>

## Domain verification (if asked)

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

## 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](/mcp/example-prompts).

## 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](/mcp/clients/claude-ai), [Perplexity](/mcp/clients/perplexity), or [Other clients](/mcp/clients/other).