Overview

GetOTP lets you add one-time password (OTP) verification to your app via SMS, email, or WhatsApp with a few API calls. You trigger an OTP send with one request and verify the code the user enters with another. It removes the complexity of building OTP delivery infrastructure yourself and supports multiple countries.

Beginner Tip

Sign up at https://otp.dev to get your API key and pick a delivery channel (email is easiest to test). The flow is always: POST /otp/send to send the code, then POST /otp/verify with the code the user enters.

Available Data

The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.

Use case: Integrate implement otp flow quickly data into web and mobile applications
GetOTP data via REST API

Example Response

Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.

JSON Response · Illustrative
{
  "status": "success",
  "data": {
    "result": "Data from GetOTP",
    "description": "Implement OTP flow quickly",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

status "success" or "error" indicating whether the OTP was sent successfully
otp_id Unique identifier for this OTP session; pass it when verifying the code the user enters
message Human-readable status message or error description

Implementation Example

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

Request
const url = "https://otp.dev/api/v1/otp/send";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "X-API-Key": "YOUR_API_KEY"
  }
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.

401 Unauthorized Missing or incorrect API key in the request
Pass your API key in the X-API-Key header or as the api_key query parameter — check the docs for the expected header name
OTP not received SMS or email delivery failed due to provider issues or incorrect recipient format
Use E.164 format for phone numbers (e.g. +14155552671) and verify the email address is valid; check your GetOTP dashboard for delivery logs
CORS blocked in browser The API does not set CORS headers, blocking browser fetch calls
Always call GetOTP from your backend server; never expose your API key or OTP logic in client-side code

Metadata Score Breakdown

Estimated from metadata — endpoint not independently tested

This score is estimated from observable metadata — HTTPS support, authentication model, declared CORS, and documentation reachability — because the API requires authentication or exposes no publicly testable endpoint. The five-signal breakdown is only shown for live-tested APIs.

Metadata estimate · endpoint not independently tested

Technical Specifications

Auth API Key
HTTPS REQUIRED
CORS NO
Difficulty Intermediate
Listing details not endpoint-verified

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