Postman Collection
Every endpoint, pre-configured. Import, set three variables, run
Every endpoint in the API Reference, with example bodies filled in. Import it, set your credentials once, and you can call anything without writing code.
Set it up
After importing, open the collection's environment and set:
| Variable | Value | Where to get it |
|---|---|---|
| Base URL | https://sandbox-api.transfi.com | Switch to https://api.transfi.com when you go live |
| Username | Your sandbox username | Dashboard → Settings → Integration |
| Password | Your sandbox password | Same tab — click regenerate, copy it once |
| MID | Your merchant ID | Same tab |
Authentication is Basic — the collection encodes username and password for you. The mid header is sent on every request from the variable.
Run your first request
List MIDs (GET /v3/mids). If it returns your MIDs, everything is wired. Then follow Make Your First Call — the same four requests are in the collection, in order.
Sandbox only. Simulation requests (force an order to any status, fake a bank deposit) only work against the sandbox URL. They're in their own folder.
→ Prefer to try calls in the browser? Every endpoint in the API Reference has a Try It panel.
Updated 9 days ago
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