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🚀 Quickstart

Connect to Circleback (MCP) with Nango and start calling tools in minutes. Circleback MCP uses OAuth 2.0 with dynamic client registration, meaning no app registration is required.
1

Create the integration

In Nango (free signup), go to Integrations -> Configure New Integration -> Circleback (MCP).
2

Authorize Circleback

Go to Connections -> Add Test Connection -> Authorize, then log in to Circleback. Later, you’ll let your users do the same directly from your app.
3

Call the Circleback MCP API

Make your first MCP request (e.g. list available tools). Replace the placeholders below with your secret key, integration ID, and connection ID:
curl "https://api.nango.dev/mcp" \
  -X POST \
  -H "Authorization: Bearer <NANGO-SECRET-KEY>" \
  -H "Provider-Config-Key: <INTEGRATION-ID>" \
  -H "Connection-Id: <CONNECTION-ID>" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 2,
    "method": "tools/list",
    "params": {}
}'
✅ You’re connected! Check the Logs tab in Nango to inspect requests.
4

Implement Nango in your app

Follow our Auth implementation guide to integrate Nango in your app.

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📚 Circleback (MCP) Integration Guides

Nango uses dynamic client registration with Circleback’s OAuth server. You do not need to register an MCP application, just create the integration in Nango and authorize with your Circleback account. Official docs: Circleback MCP

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🧩 Pre-built syncs & actions for Circleback (MCP)

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