> ## Documentation Index
> Fetch the complete documentation index at: https://docs.melius.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set agent presence



## OpenAPI

````yaml /api/openapi.json post /api/v1/canvases/{canvasId}/agent-presence
openapi: 3.0.2
info:
  title: Melius API
  version: '1'
  description: >-
    The Melius REST API. Authenticate with an API key as a bearer token
    (`Authorization: Bearer mel_...`) and select the team to act on with the
    `x-team-id` header. Generations run through the same node + run pipeline as
    the app: create a node on a canvas, start a run, poll the run, then read the
    resulting version asset.
servers:
  - url: https://api.melius.com
security:
  - apiKey: []
    teamId: []
paths:
  /api/v1/canvases/{canvasId}/agent-presence:
    post:
      tags:
        - presence
      summary: Set agent presence
      operationId: presence.set
      parameters:
        - name: canvasId
          in: path
          required: true
          schema:
            type: string
            format: uuid
      requestBody:
        description: Body
        content:
          application/json:
            schema:
              type: object
              properties:
                presenceId:
                  type: string
                  format: uuid
                claim:
                  type: object
                  properties:
                    nodeIds:
                      default: []
                      type: array
                      items:
                        type: string
                    bounds:
                      type: object
                      properties:
                        x:
                          type: number
                        'y':
                          type: number
                        w:
                          type: number
                          minimum: 0
                        h:
                          type: number
                          minimum: 0
                      required:
                        - x
                        - 'y'
                        - w
                        - h
                      nullable: true
                    status:
                      type: string
                      minLength: 1
                      maxLength: 80
                  required:
                    - status
                  nullable: true
              required:
                - claim
      responses:
        '204':
          description: '204'
        '401':
          description: Missing, invalid, expired, or revoked API key.
          content:
            application/json:
              schema:
                type: object
                properties:
                  statusCode:
                    type: integer
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - statusCode
                  - message
        '403':
          description: The API key's user is not a member of the requested team.
          content:
            application/json:
              schema:
                type: object
                properties:
                  statusCode:
                    type: integer
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - statusCode
                  - message
        '429':
          description: Rate limit reached — retry after the `Retry-After` header.
          headers:
            Retry-After:
              description: Seconds to wait before retrying.
              schema:
                type: integer
          content:
            application/json:
              schema:
                type: object
                properties:
                  statusCode:
                    type: integer
                  error:
                    type: string
                  message:
                    type: string
                  retryAfterSeconds:
                    type: integer
                required:
                  - statusCode
                  - message
components:
  securitySchemes:
    apiKey:
      type: http
      scheme: bearer
      description: 'A Melius API key (`mel_...`), sent as `Authorization: Bearer <key>`.'
    teamId:
      type: apiKey
      in: header
      name: x-team-id
      description: The team (workspace) to act on. Defaults to the key's team when omitted.

````