# Fourth > Fourth is an AI-powered workforce management and inventory platform built for restaurants and hospitality, uniting recruiting, HR, payroll, labor scheduling, purchasing and inventory (including the HotSchedules and Adaco products) across 120,000+ locations globally. Fourth exposes a developer portal of REST APIs for POS, inventory/recipe, workforce and identity integration. Production and test host locations are provisioned per mutual customer and are not publicly disclosed. ## APIs - [POS Transaction API](https://developer.fourth.com/en-gb/docs/pos-gateway/transaction-api-reference): Point-of-sale transaction integration. - [POS Gateway API](https://developer.fourth.com/en-gb/docs/pos-gateway-old/reference): Legacy POS gateway. - [RME Export API](https://developer.fourth.com/en-gb/docs/recipe-menu-engineering-export-api/reference): Recipe & Menu Engineering export. - [RME Import API](https://developer.fourth.com/en-gb/docs/recipe-menu-engineering-import-api/reference): Recipe & Menu Engineering import. - [Menu Cycles API](https://developer.fourth.com/en-gb/docs/menu-cycles-api/reference): Menu cycle management. - [Fourth Account SCIM API](https://developer.fourth.com/en-gb/docs/fourth-account-scim-api/reference): SCIM 2.0 user/identity provisioning. - [Notifications API](https://developer.fourth.com/en-gb/docs/notifications-api/reference): Platform notifications (OAuth scope NotificationService). - [Tasks API](https://developer.fourth.com/en-gb/docs/tasks-api/reference): Task management. - [UK Employee API](https://developer.fourth.com/en-gb/docs/uk-employee-api/reference): UK workforce/employee data. - [Labor Productivity API](https://developer.fourth.com/en-gb/docs/labor-productivity-api/reference): Labor productivity metrics. - [Schedules API](https://developer.fourth.com/en-gb/docs/schedules-api/reference): Employee scheduling. - [Adaco Web API](https://developer.fourth.com/en-gb/docs/adaco-product-catalog-api/reference): Adaco hotel inventory (product catalogue, vendor, budget, requisitions, inventory). ## Docs - [Developer Portal](https://developer.fourth.com/en-gb): API documentation home. - [Getting Started](https://developer.fourth.com/en-gb/docs/getting-started): Onboarding and credential provisioning. - [Authenticating with OAuth](https://developer.fourth.com/en-gb/docs/authenticating-oauth): OAuth 2.0 (client_credentials + password), token endpoint [ROOT]/oauth/connect/token. - [What's New](https://developer.fourth.com/en-gb/docs/whats-new): Changelog / release notices. - [Integration Options](https://developer.fourth.com/en-gb/docs/integration-options): Integration approaches. - [Integration Partners](https://www.fourth.com/partner/integrations): POS, job board, food-safety and distributor partners. ## Security - [security.txt](https://www.fourth.com/.well-known/security.txt): Contact security@fourth.com. - [Hosting & Data Security](https://www.fourth.com/legal/fourth-hosting-data-security): ISAE 3402/3000 (SOC 2) Type II, ISO 27001, SOC 1/2/3, ISO 9001. - [Status Page](https://status.fourth.com): Atlassian Statuspage, US/EMEA/APAC regions. ## Legal - [Privacy Policy](https://www.fourth.com/legal/privacy-policy) - [Legal Terms & Policies](https://www.fourth.com/legal/legal-terms-and-policies) - [Data Processing Agreement](https://www.fourth.com/legal/data-processing-agreement)