openapi: 3.1.0 info: title: Deel ATS Adjustments Custom Fields API description: 'Applicant Tracking System API for managing the full recruiting pipeline — jobs and job postings, candidates, applications, attachments, offers, departments, locations, email templates, hiring members, employment types, application sources, tags, and reasons — with an end-to-end candidate-to-contract flow via Deel Hire. ' version: '2026-05-25' contact: name: Deel Developer Support url: https://developer.deel.com/api/ats-guides/introduction servers: - url: https://api.letsdeel.com/rest/v2 description: Production - url: https://api-sandbox.demo.deel.com/rest/v2 description: Sandbox security: - BearerAuth: [] tags: - name: Custom Fields description: Custom fields on contracts and people paths: /custom-fields/contracts: get: operationId: getCustomFieldsContracts summary: List Contract Custom Fields tags: - Custom Fields responses: '200': description: Custom fields content: application/json: schema: type: object properties: data: type: array items: $ref: '#/components/schemas/CustomField' components: schemas: CustomField: type: object properties: id: type: string key: type: string label: type: string type: type: string enum: - text - number - date - select - boolean required: type: boolean options: type: array items: type: string securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: opaque