Salsa Onboarding & Sessions API

openapi: 3.0.1
info:
  title: Salsa Payroll Companies Onboarding & Sessions API
  description: Representative OpenAPI description of the Salsa embedded payroll REST API. Salsa is partner-gated payroll infrastructure - approved platform partners receive separate sandbox and production Bearer API keys and use these endpoints to provision employers and workers, run payroll, disburse worker payments, configure tax, and manage webhooks for US and Canada. This is a faithful, representative subset of the surface documented at https://docs.salsa.dev/reference and is not the vendor's official machine specification.
  termsOfService: https://www.salsa.dev/legal
  contact:
    name: Salsa Support
    url: https://docs.salsa.dev/
  version: rest-v1
servers:
- url: https://api.salsa.dev/api/rest/v1
  description: Production (partner production API key)
- url: https://api.sandbox.salsa.dev/api/rest/v1
  description: Sandbox (partner sandbox API key)
security:
- bearerAuth: []
tags:
- name: Onboarding & Sessions
  description: User tokens, hosted onboarding, and mock onboarding.
paths:
  /user-tokens:
    post:
      operationId: createUserToken
      tags:
      - Onboarding & Sessions
      summary: Create a scoped user API token (e.g. EMPLOYER_ADMIN) for the embeddable UI.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UserTokenCreate'
      responses:
        '201':
          description: A user token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserToken'
  /employers/{employerId}/hosted-onboardings:
    parameters:
    - $ref: '#/components/parameters/EmployerId'
    post:
      operationId: createHostedEmployerOnboarding
      tags:
      - Onboarding & Sessions
      summary: Create a hosted onboarding flow for an employer.
      responses:
        '201':
          description: Hosted onboarding created.
  /employers/{employerId}/mock-onboard:
    parameters:
    - $ref: '#/components/parameters/EmployerId'
    post:
      operationId: mockOnboardEmployer
      tags:
      - Onboarding & Sessions
      summary: Simulate employer onboarding (sandbox only).
      responses:
        '200':
          description: Employer mock-onboarded.
  /employers/{employerId}/workers/mock-onboard:
    parameters:
    - $ref: '#/components/parameters/EmployerId'
    post:
      operationId: mockOnboardWorker
      tags:
      - Onboarding & Sessions
      summary: Simulate worker onboarding (sandbox only).
      responses:
        '200':
          description: Worker mock-onboarded.
components:
  parameters:
    EmployerId:
      name: employerId
      in: path
      required: true
      description: The employer (company) identifier.
      schema:
        type: string
  schemas:
    UserToken:
      type: object
      properties:
        token:
          type: string
        role:
          type: string
        expiresAt:
          type: string
          format: date-time
    UserTokenCreate:
      type: object
      required:
      - employerId
      - role
      properties:
        employerId:
          type: string
        role:
          type: string
          enum:
          - EMPLOYER_ADMIN
          - WORKER
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Partner Bearer API key. Approved Salsa platform partners receive separate sandbox and production keys. Send as `Authorization: Bearer ${YOUR_API_TOKEN}`.'