---
title: "Changes to Send a prompt to the session's agent"
method: POST
path: "/api/v2/projects/{projectId}/sessions/{sessionId}/messages"
---

# Changes to Send a prompt to the session's agent

`POST /api/v2/projects/{projectId}/sessions/{sessionId}/messages`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 12 revisions.

- **2026-09-15** (v2) `67c8b8616dbb`: 7 info
- **2026-09-15** (v2) `48948af37797`: 1 info

## Changes

- **2026-09-15** (v2) `67c8b8616dbb`: 7 info
  - the `success` response property const value `false` was added for the status `400`
  - the `success` response property const value `false` was added for the status `401`
  - the `success` response property const value `false` was added for the status `403`
  - the `success` response property const value `false` was added for the status `404`
  - the `success` response property const value `false` was added for the status `409`
  - the `success` response property const value `false` was added for the status `429`
  - the `success` response property const value `false` was added for the status `500`
- **2026-09-15** (v2) `48948af37797`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/celedon-solutions/apis/davinci-public-api/docs/api/v2/projects/:projectId/sessions/:sessionId/messages/post.md) - [API](https://skmtc.dev/celedon-solutions/apis/davinci-public-api.md) - [Page](https://skmtc.dev/celedon-solutions/apis/davinci-public-api/changes/api/v2/projects/:projectId/sessions/:sessionId/messages/post)