Connecting Stitch
Use Stitch as your PayGate provider (Pay by Bank + card payments).
6 min read
Last updated 2026-02-03
What you’ll need
Stitch Client ID.
Stitch Client Secret.
Choose Test vs Live mode based on your Stitch environment.
Note
If you get invalid_client, it’s almost always because the selected mode (Test/Live) doesn’t match the keys you pasted.
Step-by-step
1. Open Illumi Settings → PayGate
In your dashboard, go to Settings and open PayGate.
2. Select Stitch
Choose Stitch as your provider and click Connect.
3. Paste your Client ID + Client Secret
Add credentials for Test mode or Live mode (depending on your environment).
4. Save and set as primary (optional)
If you use multiple providers, set Stitch as your primary provider.
5. Send a test invoice
Open an invoice preview and click Pay Now to verify the payment link flow.
Common issues
If you see invalid_client: confirm Test vs Live mode matches your Stitch credentials.
If payments don’t update status: confirm your PayGate webhook settings and provider callbacks.
Note
Stitch payment link generation is supported through PayGate. Automatic invoice status updates may be provider/webhook dependent and can vary by setup.