---
title: "Changes to Register A2P"
method: POST
path: "/v1/register"
---

# Changes to Register A2P

`POST /v1/register`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 42 revisions.

- **2026-08-05** `e8dc97f9c50f`: 3 info

## Changes

- **2026-08-05** `e8dc97f9c50f`: 3 info
  - added the new `high_volume` enum value to the request property `registration_type`
  - the response property `fee_cents` became required for the status `200`
  - the `fee_cents` response's property default value `2500` was removed for the status `200`

---

[Operation](https://skmtc.dev/agentphone/apis/agentphone-api/docs/v1/register/post.md) - [API](https://skmtc.dev/agentphone/apis/agentphone-api.md) - [Page](https://skmtc.dev/agentphone/apis/agentphone-api/changes/v1/register/post)