Key Takeaways
- Open-source Android SMS gateway webhooks push delivery and inbound events to your HTTPS endpoint — still not a substitute for pairing a phone.
- We are not a random GitHub listing. Official app on Downloads; confirm payload shapes in Developer Center.
- Verify signatures when offered. Idempotent handlers. Never log OTP plaintext.
- You bring the Android and operator credit. Platform pricing is devices plus send volume.
- Accepted send + missing webhook is a monitoring problem, not “delivered.”
android sms gateway open source webhook is event delivery to your backend. Hub: Open source / GitHub. Product: Webhooks. API spoke: API webhook guide. Live JSON: Developer Center.
Pricing: devices and send volume. App: Downloads.
POST · signature · idempotent
If you skip signature checks, anyone can fake Delivered.
Webhooks close the loop
Pair the phone first. Webhooks report what the radio did — they do not create GSM. DLR. setup.
A webhook that logs the full OTP body “for debugging” is an incident waiting for a log shipper.
Webhook ops table
| Concern | Do | Don't |
|---|---|---|
| Auth | Verify HMAC/signature | Open POST sink |
| Idempotency | Dedupe by event/message id | Double-apply Delivered |
| OTP | Status only in logs | Log plaintext codes |
| Retries | Return 2xx when persisted | Fail forever → storm |
| Timeout | Bounded wait + poll | Blind OTP resend |
Verify signatures
Do not reuse the send token as a “signature key” unless Developer Center says so. Keys in env.
OSS adapter vs SaaS
Self-hosted adapters still need TLS and secret hygiene. OTP. Messaging practices.
Next steps
Stand up a signed webhook receiver. Spend 300 lifetime SMS proving one DLR event — then a funded SIM.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- SMS webhook integrationInbound and status events
- device and SMS volume pricingPlans and allowances
- Android SMS gateway product guideDefinition, product, and how to buy
- SMS API documentationLive endpoint reference
