BigChange

In Tenklo (free signup), go to Integrations -> Configure New Integration -> BigChange. Enter your BigChange Partner API Client ID and Client Secret.

Go to Connections -> Add Test Connection -> Authorize, then enter the customer's numeric Customer ID. BigChange uses OAuth 2.0 Client Credentials, so there is no user-facing sign-in screen — the connection is created as soon as the Customer ID is submitted. Later, you'll let your users do the same directly from your app.

Let's make your first request to the BigChange API (fetch a list of users). Replace the placeholders below with your Environment API key, integration ID, and connection ID:

curl "https://api.tenklo.dev/proxy/v1/users?page-number=1&page-size=10" \
  -H "Authorization: Bearer <NANGO-API-KEY>" \
  -H "Provider-Config-Key: <INTEGRATION-ID>" \
  -H "Connection-Id: <CONNECTION-ID>"

Or fetch credentials with the Node SDK or API.

✅ You're connected! Check the Logs tab in Tenklo to inspect requests. Tenklo automatically injects the customer-id header on every proxy call from the connection's customer_id field.

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