Key Takeaways
- Zapier Android SMS gateway webhook pattern: catch a webhook (or Zapier trigger) → your bridge or Webhooks-by-Zapier HTTPS POST → Android SMS gateway REST — not an official Zapier app listing unless published.
- Keep API keys in Zapier secret fields / your bridge env — never in shared Zap screenshots.
- Accept ≠ delivered. Pace bulk Zaps; isolate OTP deviceIds.
- You bring the phone and operator airtime. We meter devices and send volume.
- Automation does not remove OEM or prepaid failure modes.
Webhooks into REST, not our Zapier app
Zapier Android SMS gateway webhook pattern: an upstream event hits Zapier (or a catch hook), then an HTTPS POST sends JSON to the Android SMS gateway API. API hub: Android SMS gateway API. Live fields: Developer Center. MCP contrast (different tooling): MCP vs Zapier for SMS.
A green Zap run with an empty prepaid SIM is still a customer who never got the text.
What we do not claim
Not an official Zapier directory product unless published. Not “Zapier sends SMS for free.” External: Zapier webhooks help.
Zap hop ownership
| Hop | Owner | Common miss |
|---|---|---|
| Trigger / catch hook | Your Zap config | No signature checks on public hooks |
| HTTPS send step | Bearer + JSON body | Key pasted in a shared Zap |
| Gateway + radio | Queue + SIM | Treating Zap success as DLR |
Webhook → HTTPS send
Prefer a thin bridge you control for HMAC and idempotency when volume matters. Isolate OTP — OTP verification. Pace marketing Zaps so one radio is not hammered.
Cost
Devices plus SMS send volume. Operator airtime is yours. Zapier subscription is a third ledger. Free: 1 device / 300 SMS lifetime. Starter, Professional, and Business list Unlimited SMS as platform send volume; that is not unmetered carrier SMS.
Checklist
- No official Zapier app claim without a listing.
- Secrets in Zapier secret fields / bridge env.
- Idempotency for retries; timeouts set.
- OTP deviceIds isolated; airtime monitored.
- Developer Center fields confirmed.
Next steps
pricing, setup, n8n order alerts.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- SMS webhook integrationInbound and status events
- SMS API documentationLive endpoint reference
- device and SMS volume pricingPlans and allowances
- Android SMS gateway product guideDefinition, product, and how to buy
