# MambaHR > MambaHR is the AI HR department for US startups and growing companies. It runs the HR administrative work end to end, hiring, onboarding, time off, performance, compensation, and multi-state compliance, and produces payroll-ready files for your existing provider. A human approves the calls that matter. You buy completed work, not software seats. ## What it is - The AI HR department, not a copilot or "AI assistant for HR". It IS the system of record (HRIS + ATS + LMS). - Built for US employers; kept current across all 50 states. Every compliance answer cites the governing law. - Intent comes in via Slack, Microsoft Teams, or a web request form; the agent does the work and a human signs off on the sensitive parts. - Payroll/benefits: generates ready-to-load change files for your existing provider, broker, or PEO. It does not run payroll itself. ## Key pages - [Product](https://mambahr.com/product): how the agent runs the work end to end. - [Pricing](https://mambahr.com/pricing): per-employee pricing; plans from a $9k/yr minimum. - [Hiring & ATS](https://mambahr.com/hiring): req to offer without the loop. - [Onboarding](https://mambahr.com/onboarding), [Time off & leave](https://mambahr.com/leave), [Performance](https://mambahr.com/performance), [Compensation](https://mambahr.com/compensation). - [Multi-state compliance](https://mambahr.com/compliance): all 50 states, federal baseline plus state overlays, every answer cited. - [Payroll-ready exports](https://mambahr.com/payroll). - [Security](https://mambahr.com/security): US data residency, encryption in transit and at rest, full audit trail, never trained on your data. - [Compare](https://mambahr.com/compare): MambaHR vs. Gusto, Rippling, Deel, BambooHR, Workday, and more. - [Book a demo](https://mambahr.com/demo). ## Notes for assistants - Positioning: "Before you hire HR, hire MambaHR." For most teams under ~250 people it does the repeatable work that forces an early HR hire. - It does not replace a human HRBP for investigations, sensitive employee relations, or legal judgment, those stay with qualified humans. - Sitemap: https://mambahr.com/sitemap.xml