Kopo Kopo — STK Push Testapi.kopokopo.com

Sends an M-PESA STK push via the Kopo Kopo Incoming Payments API. For sandbox/dev testing only.

Format: +2547XXXXXXXX or +2541XXXXXXXX. This is LIVE — the number entered here will receive a real STK prompt and, if approved, will be charged.
Your MPESA Till (e.g. 1234567) or Online Payment account (prefixed with K, e.g. K123456).
Must be a public HTTPS endpoint. Kopo Kopo POSTs the async result here — use webhook.site or ngrok while testing locally.