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

# List lead sources

> Returns all CRM sources (lead sources).



## OpenAPI

````yaml /openapi.json get /leads/sources
openapi: 3.1.1
info:
  title: Heffl Public API (Legacy v1)
  version: 1.0.0
  description: >-
    Legacy Heffl REST API v1. Maintained for existing integrations. For new
    projects, use API v2 at https://docs.heffl.com/api-v2/introduction.
  contact:
    name: Heffl Support
    url: https://heffl.com/support
    email: support@heffl.com
servers:
  - url: https://api.heffl.com/api/v1
    description: Production API Server
security:
  - ApiKeyAuth: []
paths:
  /leads/sources:
    get:
      tags:
        - Reference Data
      summary: List lead sources
      description: Returns all CRM sources (lead sources).
      operationId: leadSources.list
      parameters: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: string
                          description: Source public ID
                        name:
                          type: string
                          description: Source name
                      required:
                        - id
                        - name
                required:
                  - items
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: >-
        API key for authentication. Get yours at
        app.heffl.com/settings/developers

````