---
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`

## Request

- Base URL: `https://api.unstoppabledomains.com`
- URL: `https://api.unstoppabledomains.com/mcp/v1/actions/ud_lead_message_send`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/unstoppabledomains/apis/user-api/docs/mcp/v1/actions/ud_lead_message_send/post.ts> (a function with typed inputs; its response is checked against the schema)

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.dev/unstoppabledomains/apis/user-api.md) - [All operations](https://skmtc.dev/unstoppabledomains/apis/user-api/llms.txt) - [OpenAPI document](https://skmtc.dev/unstoppabledomains/apis/user-api/revisions/c1def8e34b41?raw)