---
title: "Send a one-time verification code to a phone number."
method: POST
path: "/didit/v3/phone/send"
tags: ["Didit"]
---

# Send a one-time verification code to a phone number.

`POST /didit/v3/phone/send`

## Request

- Base URL: `https://api.orthogonal.com/mpp`
- URL: `https://api.orthogonal.com/mpp/didit/v3/phone/send`
- Auth: none declared
- TypeScript: <https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/docs/didit/v3/phone/send/post.ts> (a function with typed inputs; its response is checked against the schema)

## Request body

- object
  - `phone_number` string, required: Phone number in E.164 format (e.g. +14155552671)
  - `options` object: Options object with code_size (4-8, default 6), locale (e.g. en-US), preferred_channel (sms/whatsapp/telegram/voice, default whatsapp)
  - `signals` object: Fraud detection signals: ip, device_id, device_platform (android/ios/ipados/tvos/web), device_model, os_version, app_version, user_agent
  - `vendor_data` string: Unique identifier for vendor/user (UUID or email) for session tracking

## Response `200`

Successful response

## Other responses

- `402`: Payment Required (x402 / MPP / np)

## Changes

- **2026-11-08** `857e915717f4`: 1 breaking
  - added required request body
- **2026-08-25** `806e279c8d50`: 2 info
  - api tag `Didit` added
  - api tag `Didit API` removed

[Operation history](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/changes/didit/v3/phone/send/post.md)

---

[API](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace.md) - [All operations](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/llms.txt) - [OpenAPI document](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/revisions/fc2e1d26c8eb?raw)