---
title: "Send a message in a conversation"
method: POST
path: "/mcp/v1/actions/ud_lead_message_send"
tags: ["Leads"]
---

# Send a message in a conversation

`POST /mcp/v1/actions/ud_lead_message_send`

Send a message in a domain conversation. Messages are encrypted at rest.

## Request body

- object
  - `conversationId` number, required — The conversation ID
  - `content` string, required — Message content (1-1000 characters)

## Response `200`

Sent message details

- LeadMessageSendResponse
  - `message` object
    - `id` number — Message ID
    - `content` string
    - `senderUserId` number
    - `createdAt` string
  - `conversationId` number

## Other responses

- `401` — Authentication required

---

[API](https://skmtc.net/unstoppabledomains/apis/user-api.md) · [All operations](https://skmtc.net/unstoppabledomains/apis/user-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/unstoppabledomains/user-api/revisions/c1def8e34b41/schema)