OTP SMS: send verification codes from your own number
Deliver one-time passwords, login codes and phone verification SMS through your own Android phone. One API call, delivery reports in seconds and unlimited SMS for a flat monthly price.
- One API call
- Delivery reports
- Local sender number
- Unlimited SMS
Why send OTPs through SMS Gora
Fast delivery
A busy phone checks in every 1.5 seconds and an idle one at least every 15 seconds; with instant push enabled it wakes the moment you call the API.
Know it arrived
Every code gets sent and delivered status by API and webhook, so you can offer “resend” at the right time.
Local numbers
Codes come from a local mobile number, which recipients recognise and local networks deliver reliably.
Backup phones
Link a second phone and let SMS Gora pick whichever is online.
You own the code
Your server generates and checks the code — SMS Gora only delivers the text.
Any SIM
Choose which SIM sends on dual-SIM phones, for example the network with the best reach.
How to send an OTP SMS
- 1
Generate the code
Create a random 6-digit code on your server and store it with an expiry time.
- 2
Send it by API
POST the phone number and message to /v1/send-sms with your API key.
- 3
Verify
When the user types the code, compare it on your server; use the delivery webhook to time “resend”.
Send a verification code
Keep the message short and clear, name your service and say when the code expires. Never put the code in a link.
Read the API docscurl -X POST https://tekservix.com/smsgora/api/v1/send-sms \
-H "x-api-key: $SMSGORA_KEY" \
-H "Content-Type: application/json" \
-d '{"recipients":["+250788123456"],
"message":"Tekshop code: 482913. Expires in 10 min."}'Best practices for OTP SMS
A one-time password proves that a user controls a phone number. Generate at least six random digits on your server, keep them valid for a few minutes only, allow a limited number of attempts, and rate-limit how often a code can be requested for the same number. SMS Gora delivers the message; your application stays in charge of creating and checking the code.
Make codes arrive quickly
Keep the phone on charge and on Wi-Fi or mobile data, turn off battery optimisation for the app, and link a second phone as a backup. Use the sms.delivered and sms.failed webhooks to show a resend button only when it’s needed.
Write a clear OTP message
Start with your brand name, show the code early, and state the expiry — for example “Tekshop code: 482913. Expires in 10 min.” Short messages stay in one SMS part and are delivered faster.
Pay per phone, not per message
Unlimited SMS on every plan. Your mobile operator bills the texts to your SIM, like messages you send by hand.
Basic
- 1 Android phone
- Unlimited SMS
- REST API, webhooks & received SMS
- Bulk campaigns, auto-replies & opt-outs
- Dual-SIM selection
Pro
- 3 Android phones
- Unlimited SMS
- REST API, webhooks & received SMS
- Bulk campaigns, auto-replies & opt-outs
- Dual-SIM selection
Business
- 10 Android phones
- Unlimited SMS
- REST API, webhooks & received SMS
- Bulk campaigns, auto-replies & opt-outs
- Priority support
Enterprise
- 30 Android phones
- Unlimited SMS
- REST API, webhooks & received SMS
- Bulk campaigns, auto-replies & opt-outs
- Dedicated support
OTP SMS questions
How fast do OTP codes arrive?
Usually within seconds: an online phone picks up new messages within about 15 seconds when idle and much faster while busy. Instant push, when enabled, makes it react immediately.
Can I use SMS Gora for two-factor authentication?
Yes. Your app generates the code and sends it with one API call; SMS Gora delivers it and reports delivery.
What if the phone is offline?
The code waits in the queue and goes out when the phone reconnects. For login codes, link a backup phone so another online phone can send it.
Is OTP SMS through a personal SIM reliable?
For local numbers it’s usually very reliable, because the text travels like any person-to-person SMS. For many countries at high volume, consider a carrier provider as well.
How much does each OTP cost?
SMS Gora plans include unlimited SMS. Your operator bills each text to the SIM, often inside a cheap SMS bundle.
Start sending verification codes today
Link your Android phone in two minutes. Unlimited SMS from $3.99/month.
Get startedMore about SMS Gora: SMS Gora overview · SMS API · Bulk SMS · TextBee alternative · API documentation · SMS Gora pricing · Install the Android app