post
https://business.mamopay.com/manage_api/v1/webhooks
Webhook registration for updates on one-off payment statuses and subscription payment statuses.
[Optional] Verify Mamo source IP
Every webhook delivery comes from one of these fixed IP addresses. Allowlist them on your firewall or check the request's source IP in your handler, then reject anything else.
| Environment | Source IP |
|---|---|
| Live | 35.240.141.245/32 |
| Sandbox | 34.87.150.144/32 |
Use this alongside the auth_header check, not instead of it. If your server sits behind a load balancer or proxy, check the original client IP it forwards (for example in X-Forwarded-For), not the proxy's own address.
404Invalid request
500Unexpected error