ChatGPT

ChatGPT supports remote MCP servers through Connectors, letting you use Toolcog directly in conversations.

Requirements

• ChatGPT Pro, Team, Enterprise, or Edu plan
• Developer Mode enabled (for full tool access)
• A Toolcog account (sign up)

Enable Developer Mode

Developer Mode provides full MCP client support, including read and write tools.

1. Go to chatgpt.com and sign in
2. Click your profile icon and select Settings
3. Navigate to Connectors → Advanced
4. Enable Developer Mode

Without Developer Mode, ChatGPT only supports MCP servers with search and fetch tools. Developer Mode enables all three Toolcog meta-tools.

Add Toolcog as a Connector

1. In Settings, go to Connectors
2. Click Create
3. Enter:
   • Name: Toolcog
   • Description: Universal API access - discover, learn, and execute operations across hundreds of services
   • URL: https://mcp.toolcog.com
4. Click Save

Using Toolcog

Toolcog appears as an available connector in the chat composer. You can:

• Use Connectors button: Enable Toolcog for regular conversations
• Deep Research: Use Toolcog as a data source for research tasks

In a conversation, ask ChatGPT to use APIs:

“Find Stripe operations for managing subscriptions”

ChatGPT will use Toolcog to discover and execute operations.

Authentication

When ChatGPT first connects to Toolcog:

1. ChatGPT displays an authorization link
2. Click to sign in to Toolcog
3. You’re redirected back to ChatGPT

Downstream service authorization (GitHub, Stripe, etc.) works the same way—ChatGPT provides a link when credentials are needed.

Custom Scopes

Connect to a specific catalog:

1. Create a new connector
2. Use a scoped URL: https://mcp.toolcog.com/mycompany/my-catalog

You can have multiple Toolcog connectors with different scopes.

Mobile Access

Connectors you add on ChatGPT web are automatically available on ChatGPT mobile apps.

Verify It’s Working

Ask ChatGPT something that uses Toolcog:

“What GitHub operations are available for managing issues?”

If ChatGPT returns a list of operations, Toolcog is connected.

Troubleshooting

Connector not appearing

• Verify you’re on a Pro, Team, Enterprise, or Edu plan
• Check that Developer Mode is enabled
• Refresh the page after adding the connector

Tools not working

• Ensure Developer Mode is enabled for full tool access
• Without Developer Mode, only search and fetch tools work

Authentication errors

• Click the authorization link again to re-authenticate
• Check that you’re signed in to Toolcog

Security Notes

ChatGPT displays tool-call payloads in the UI so you can review inputs and outputs. Write operations require confirmation unless you choose to remember approvals for the conversation.

Next Steps

• Quick Start — Your first API operation
• Authenticated Requests — On-demand authorization flow