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

# Create a note

> Creates the note in the project of the API key and answers 201 with the created record.



## OpenAPI

````yaml /api-reference/openapi.json post /v1/notes
openapi: 3.0.3
info:
  title: Leadstaker API
  version: 1.0.0
  description: Public REST API for Leadstaker projects.
servers:
  - url: https://n-api.leadstaker.com
    description: Production
security: []
tags:
  - name: Fields
    description: >-
      Custom field definitions, both the built-in ones and the ones a project
      creates.
  - name: Field groups
    description: Sections that organize custom fields in the interface.
  - name: Deals
    description: Opportunities moving through a pipeline, each tied to a contact.
  - name: Contacts
    description: >-
      People inside a project, holding the custom field values collected about
      them.
  - name: Messages
    description: Individual messages inside a chat, inbound and outbound.
  - name: Chats
    description: Conversations with a contact over a connected channel.
  - name: Loss reasons
    description: The catalog of reasons a deal can be marked as lost.
  - name: Pipelines
    description: Ordered sets of stages a deal travels through.
  - name: Stages
    description: Steps inside a pipeline, including the built-in open and closed ones.
  - name: Tags
    description: Free-form labels attached to deals.
  - name: Notes
    description: >-
      Free text attached to a contact or a deal, written by a user, an agent, or
      the system.
paths:
  /v1/notes:
    post:
      tags:
        - Notes
      summary: Create a note
      description: >-
        Creates the note in the project of the API key and answers 201 with the
        created record.
      operationId: postNotes
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                content:
                  type: string
                  minLength: 1
                entityId:
                  type: string
                  minLength: 1
                author:
                  anyOf:
                    - type: object
                      properties:
                        type:
                          type: string
                          enum:
                            - USER
                        id:
                          type: string
                          minLength: 1
                      required:
                        - type
                        - id
                      additionalProperties: false
                    - type: object
                      properties:
                        type:
                          type: string
                          enum:
                            - AGENT
                      required:
                        - type
                      additionalProperties: false
                    - type: object
                      properties:
                        type:
                          type: string
                          enum:
                            - SYSTEM
                      required:
                        - type
                      additionalProperties: false
              required:
                - content
                - entityId
                - author
              additionalProperties: false
      responses:
        '201':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  id:
                    type: string
                  archivedAt:
                    type: string
                    format: date-time
                  createdAt:
                    type: string
                    format: date-time
                  updatedAt:
                    type: string
                    format: date-time
                  projectId:
                    type: string
                    minLength: 1
                  content:
                    type: string
                    minLength: 1
                  entityId:
                    type: string
                    minLength: 1
                  author:
                    anyOf:
                      - type: object
                        properties:
                          type:
                            type: string
                            enum:
                              - USER
                          id:
                            type: string
                            minLength: 1
                        required:
                          - type
                          - id
                        additionalProperties: false
                      - type: object
                        properties:
                          type:
                            type: string
                            enum:
                              - AGENT
                        required:
                          - type
                        additionalProperties: false
                      - type: object
                        properties:
                          type:
                            type: string
                            enum:
                              - SYSTEM
                        required:
                          - type
                        additionalProperties: false
                  entityType:
                    type: string
                    minLength: 1
                required:
                  - id
                  - createdAt
                  - updatedAt
                  - projectId
                  - content
                  - entityId
                  - author
                  - entityType
                additionalProperties: false
              example:
                id: 671784c9b2f1dd0016cae5f2
                projectId: 665f1c2e8a94b70012d4e9a1
                content: Cliente pediu retorno na segunda de manhã.
                entityId: 6715be3a9c40aa0013d8e5c2
                author:
                  type: USER
                  id: 664d9e0b7c83aa0010f1c2d3
                entityType: DEAL
                createdAt: '2026-01-15T10:05:00.000Z'
                updatedAt: '2026-01-15T10:05:00.000Z'
        '401':
          description: Missing or invalid credentials
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '422':
          description: The payload failed validation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - apiKey: []
components:
  schemas:
    Error:
      type: object
      required:
        - errorCode
        - message
        - status
      properties:
        errorCode:
          type: string
        message:
          type: string
        status:
          type: integer
        errors:
          type: array
          items:
            type: object
            required:
              - field
              - code
              - message
            properties:
              field:
                type: string
              code:
                type: string
              message:
                type: string
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key

````