---
title: "Send Message"
method: POST
path: "/v1/copilot/sessions/{session_id}/messages"
tags: ["Copilot", "copilot"]
---

# Send Message

`POST /v1/copilot/sessions/{session_id}/messages`

## Request

- Base URL: `https://api.call2me.app`
- URL: `https://api.call2me.app/v1/copilot/sessions/{session_id}/messages`
- Auth: HTTP bearer

## Path parameters

- `session_id` string, required

## Request body

- SrcRoutersV1CopilotSendMessageRequest
  - `content` string, required
  - `language` string, nullable

## Response `200`

Successful Response

- MessageResponse
  - `assistant` CopilotMessage, required
    - `message_id` string, required
    - `role` string, required
    - `content` string, required
    - `action_cards` ActionCard[]
      - `action_id` string, required
      - `tool_name` string, required
      - `summary` string, required
      - `risk` string, required
    - `ui_blocks` unknown[]
      - unknown
    - `created_at` string, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/call2me/apis/call2me-api.md) · [All operations](https://skmtc.dev/call2me/apis/call2me-api/llms.txt) · [OpenAPI document](https://skmtc.dev/call2me/apis/call2me-api/revisions/3951f9b7e47d?raw)