---
title: "Changes to Sign Up"
method: POST
path: "/v0/agent/sign-up"
---

# Changes to Sign Up

`POST /v0/agent/sign-up`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 6 of 38 revisions.

- **2026-10-16** `3f5c7830c952`: 2 breaking, 4 info
- **2026-07-15** `394ddcdd9c29`: 4 info
- **2026-05-14** `14a2403820b1`: 2 info
- **2026-03-31** `27965096e618`: 1 info
- **2026-03-28** `8a5b5e92ae2d`: 1 breaking
- **2026-03-28** `543818df77d9`: 1 info

## Changes

- **2026-10-16** `3f5c7830c952`: 2 breaking, 4 info
  - the request property `referrer` became not nullable
  - the request property `source` became not nullable
  - api tag `agent` added
  - api tag `Agent` removed
  - request body became optional
  - the request property `human_email` became optional
- **2026-07-15** `394ddcdd9c29`: 4 info
  - added the optional property `code` to the response with the `400` status
  - added the optional property `docs` to the response with the `400` status
  - added the optional property `fix` to the response with the `400` status
  - added the optional property `message` to the response with the `400` status
- **2026-05-14** `14a2403820b1`: 2 info
  - added the new optional request property `referrer`
  - added the new optional request property `source`
- **2026-03-31** `27965096e618`: 1 info
  - endpoint added
- **2026-03-28** `8a5b5e92ae2d`: 1 breaking
  - api path removed without deprecation
- **2026-03-28** `543818df77d9`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/agentmail-to/apis/api/docs/v0/agent/sign-up/post.md) - [API](https://skmtc.dev/agentmail-to/apis/api.md) - [Page](https://skmtc.dev/agentmail-to/apis/api/changes/v0/agent/sign-up/post)