---
title: "Changes to Create a message (Anthropic-compatible)"
method: POST
path: "/ai/anthropic/v1/messages"
---

# Changes to Create a message (Anthropic-compatible)

`POST /ai/anthropic/v1/messages`

> Every recorded change to this endpoint, newest first.
> 99 revisions in range; 1 not diffed.

## Timeline

Changed in 3 of 99 revisions.

- **2026-09-16** `a6a61a29ecdd` — 2 info
- **2026-07-10** `85d633529c28` — 1 info
- **2026-07-02** `224ed0d8a5c3` — 1 breaking

## Changes

- **2026-09-16** `a6a61a29ecdd` — 2 info
  - added the new optional request property `mode`
  - added the new optional request property `region`
- **2026-07-10** `85d633529c28` — 1 info
  - endpoint added
- **2026-07-02** `224ed0d8a5c3` — 1 breaking
  - api path removed without deprecation

---

[Operation](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/docs/ai/anthropic/v1/messages/post.md) · [API](https://skmtc.dev/team-telnyx/apis/telnyx-api-2.md) · [Page](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/changes/ai/anthropic/v1/messages/post)