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

# Send a one-time verification code to an email address.

`POST /didit/v3/email/send`

## Request

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

## Request body

- object
  - `email` string, required: Email address to verify
  - `options` object: Options object with code_size (4-8, default 6) and locale (e.g. en-US)
  - `signals` object: Fraud detection signals: ip, device_id, 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/email/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/857e915717f4?raw)