> For the complete documentation index, see [llms.txt](https://zkpay-1.gitbook.io/zkp-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zkpay-1.gitbook.io/zkp-whitepaper/core-features.md).

# Core Features

- [zkPayroll Proofs](https://zkpay-1.gitbook.io/zkp-whitepaper/core-features/zkpayroll-proofs.md): zkPayroll Proofs — Verifiable Fairness Without Exposure
- [x402 Bridge Layer](https://zkpay-1.gitbook.io/zkp-whitepaper/core-features/x402-bridge-layer.md): x402 Bridge Layer — Instant Fiat-to-Crypto Conversion and Global Payment Routing
- [zk-KYC Compliance Modules](https://zkpay-1.gitbook.io/zkp-whitepaper/core-features/zk-kyc-compliance-modules.md): zk-KYC Compliance Modules — Privacy-Preserving Regulatory Assurance
- [Plug-In SDK for HR & Payroll Systems](https://zkpay-1.gitbook.io/zkp-whitepaper/core-features/plug-in-sdk-for-hr-and-payroll-systems.md): Plug-In SDK for HR & Payroll Systems — Seamless Integration for Real-World Adoption
- [Smart Payroll Automation](https://zkpay-1.gitbook.io/zkp-whitepaper/core-features/smart-payroll-automation.md): Smart Payroll Automation — Decentralized Logic, Instant Execution