# Truecaller Non-Truecaller User Verification API

**Canonical:** https://apis.io/apis/truecaller/truecaller-otp-verification-api/  
**Provider:** Truecaller — https://apis.io/providers/truecaller/  
**Base URL:** https://sdk-otp-verification-noneu.truecaller.com  
**Documentation:** https://docs.truecaller.com/truecaller-sdk/android/latest-oauth-sdk-3.3.0/integration-steps/non-truecaller-user-verification/server-side-validation

Truecaller Non-Truecaller User Verification API is one of 4 APIs that [Truecaller](https://apis.io/providers/truecaller/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Phone Verification, OTP, Missed Call, and Validation. The published artifact set on APIs.io includes API documentation.

Server-side validation for the drop-call / IM-OTP verification flow that covers users without the Truecaller app. GET /v1/otp/client/installation/phoneNumberDetail/{accessToken} (clientId header) returns the verified phone number and country code for the access token issued by the SDK.

## Machine-readable artifacts (1)

- **Documentation** — https://docs.truecaller.com/truecaller-sdk/android/latest-oauth-sdk-3.3.0/integration-steps/non-truecaller-user-verification/server-side-validation

## Other Truecaller APIs (3)

- [Truecaller OAuth User Verification API](https://apis.io/apis/truecaller/truecaller-oauth-api/)
- [Truecaller Web SDK Profile API](https://apis.io/apis/truecaller/truecaller-web-sdk-profile-api/)
- [Truecaller for Business API](https://apis.io/apis/truecaller/truecaller-for-business-api/)

## Tags

Phone Verification, OTP, Missed Call, Validation

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/truecaller/truecaller-otp-verification-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/truecaller/.