One-time passcodes (OTP)

Send and verify one-time codes by SMS without writing OTP logic. We generate the code, send it as a regular SMS from the sender name OTP and check it. The code itself is never stored — only a keyed hash — and never returned to you.

Send

bash

curl -X POST https://smsprovider-web.vercel.app/api/v1/otp/send \
  -H "Authorization: Bearer $BATLER_API_KEY" -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{"to": "0501234567", "app_id": "login", "valid_minutes": 5, "text": "Your MyBrand login code: [code]"}'

Field	Default	Notes
`to`	—	Israeli mobile only
`app_id`	`default`	Separates flows (login, payment approval…). Each `app_id` has its own active code
`valid_minutes`	5	1–15
`max_tries`	3	3–5 wrong attempts, then the code is invalidated
`code_length`	6	4–8 digits
`text`	Hebrew default with `[code]`	Must contain `[code]` exactly once

Response: { "session_id", "expires_at" }. Cost: by message segments (usually one credit); verification is free. The message appears in your message history with its delivery report, with the code masked.

Verify

const { verified, tries_left } = await sms.otp.verify({ to: "0501234567", code: userInput, app_id: "login" });
if (!verified) showError(`Wrong code, ${tries_left} attempts left`);

Limits and protections

Up to 3 codes per phone per 10 minutes and 10 per hour per account. Exceeding returns 429 otp_rate_limited.
Do not auto-retry verify — every call counts as an attempt.
Webhook events: otp.verified, otp.failed.
Channel: SMS only.