Thatch Health Employer onboarding sessions API
Employers onboard into a platform through employer onboarding sessions. After creating a session, provide the `claim_url` to the onboarding iframe in your app.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Thatch for Platforms Employer onboarding sessions API
version: v1
description: Thatch for Platforms is a set of REST APIs and embeddable JavaScript components that let partners bring ICHRA (Individual Coverage Health Reimbursement Arrangement) benefits to their customers.
contact:
name: Thatch for Platforms
email: platforms@thatch.com
url: https://docs.thatch.com/
x-apisjson-generated: '2026-07-21'
x-apisjson-method: generated
x-apisjson-source: https://docs.thatch.com/api/
servers:
- url: https://partners.thatchcloud.com/api/partners/v1
description: Production
security:
- Bearer: []
tags:
- name: Employer onboarding sessions
description: Employers onboard into a platform through employer onboarding sessions. After creating a session, provide the claim_url to the onboarding iframe in your app.
paths:
/employer_onboarding_sessions:
post:
tags:
- Employer onboarding sessions
operationId: createEmployerOnboardingSession
summary: Create an employer onboarding session
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- employer
properties:
employer:
type: string
description: ID of the employer to create an onboarding session for
email:
type: string
description: Email address of the admin to create the session for. When provided, a User and EmployerAdmin are created (or found) for this email.
first_name:
type: string
description: First name of the admin (used when creating a new EmployerAdmin via email)
last_name:
type: string
description: Last name of the admin (used when creating a new EmployerAdmin via email)
responses:
'201':
description: Create an employer onboarding session
content:
application/json:
schema:
$ref: '#/components/schemas/EmployerOnboardingSession'
'401':
$ref: '#/components/responses/Unauthorized'
components:
responses:
Unauthorized:
description: Authentication failed or API key missing/invalid.
schemas:
EmployerOnboardingSession:
type: object
properties:
employer:
type: string
example: empl_01j2j3smtwx656y2tbqm7ty6gr
employer_admin_email:
type: string
example: admin@example.com
claim_url:
type: string
description: URL to provide to the onboarding iframe.
example: https://app.thatch.com/employer_onboarding_sessions/SR86rPsHKWp02FivyQ6Z4hgUN0VBz6RR/claim
expires_at:
type: string
format: date-time
securitySchemes:
Bearer:
type: http
scheme: bearer
description: 'All requests are authenticated with your API key using Bearer token authentication. Include the header `Authorization: Bearer <YOUR_API_KEY>`. Generate an API key in the Thatch dashboard.'