---
title: "Start agent signup. Sends a 6-digit OTP to the human's email. Returns a verification_id. No auth required."
method: POST
path: "/agentphone/v0/agent/sign-up"
tags: ["AgentPhone"]
---

# Start agent signup. Sends a 6-digit OTP to the human's email. Returns a verification_id. No auth required.

`POST /agentphone/v0/agent/sign-up`

## Request

- Base URL: `https://api.orthogonal.com/mpp`
- URL: `https://api.orthogonal.com/mpp/agentphone/v0/agent/sign-up`
- Auth: none declared
- TypeScript: <https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/docs/agentphone/v0/agent/sign-up/post.ts> (a function with typed inputs; its response is checked against the schema)

## Request body

- object
  - `human_email` string, required: Human's email address. OTP is sent here.
  - `agent_name` string: Name for the starter agent.

## Response `200`

Successful response

## Changes

- **2026-11-08** `857e915717f4`: 1 breaking
  - added required request body
- **2026-08-07** `a2f6a959fef9`: 1 info
  - removed the non-success response with the status `402`

[Operation history](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/changes/agentphone/v0/agent/sign-up/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)