> ## Documentation Index
> Fetch the complete documentation index at: https://na-36-changelog-go-livepeer-2026-05-18.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign Message

> Sign Message for Livepeer gateways.



## OpenAPI

````yaml POST /signMessage
openapi: 3.0.3
info:
  title: Livepeer CLI Local HTTP API
  description: |
    Local control-plane HTTP endpoints exposed by the Livepeer node.

    The CLI HTTP API provides programmatic access to node management functions
    including status monitoring, staking operations, orchestrator configuration,
    and broadcast settings.

    **Default Ports:**
    - Gateway: http://localhost:5935
    - Orchestrator: http://localhost:7935
  version: 1.0.0
  contact:
    name: Livepeer Documentation
    url: https://docs.livepeer.org
servers:
  - url: http://localhost:5935
    description: Gateway CLI API (default)
  - url: http://localhost:7935
    description: Orchestrator CLI API
security: []
tags:
  - name: Status
    description: Node status and information
  - name: Staking
    description: Token bonding and delegation operations
  - name: Orchestrator
    description: Orchestrator configuration and management
  - name: Gateway
    description: Gateway/broadcaster configuration
  - name: Ethereum
    description: Ethereum operations and token transfers
paths:
  /signMessage:
    post:
      tags:
        - Ethereum
      summary: Sign message
      description: Sign message with node's private key
      operationId: signMessage
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - message
              properties:
                message:
                  type: string
                  description: Message to sign
                  example: Hello Livepeer
      responses:
        '200':
          description: Message signed successfully
          content:
            application/json:
              schema:
                type: object
                properties:
                  signature:
                    type: string
                    description: Hex-encoded signature
                    example: 0x...

````