> For the complete documentation index, see [llms.txt](https://docs.rozo.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rozo.ai/reference/contracts-and-audits.md).

# Contracts & Audits

### **Smart Contracts** <a href="#smart-contracts" id="smart-contracts"></a>

ROZO is built on smart contracts, Solver and Relayer model. \[[Github](https://github.com/RozoAI/rozo-intents-contracts)]

### **Audits** <a href="#audits" id="audits"></a>

ROZO smart contracts have been audited by [Hacken](https://hacken.io/), a leading Web3 security auditing firm.

* **Hacken × Rozo (SDF) Audit — March 2026**: [hacken.io/audits/rozo/sca-rozo-sdf-audit-mar2026](https://hacken.io/audits/rozo/sca-rozo-sdf-audit-mar2026/)

### **MPP Router (Agentic Payments)** <a href="#mpp-router" id="mpp-router"></a>

MPP Router, the pay-per-call router behind [Agentic Payments](/products/agentic-payments-mpprouter.md), is open source. \[[Github](https://github.com/mpprouter/rozo-mpprouter)]

* **HackenProof × ROZO MPP Router Audit — September 2026**: independent security review covering the router and the Stellar (Soroban) payment channel contract. All findings resolved. Report: [HackenProof Audit Report for MPP Router ROZO (PDF)](https://github.com/mpprouter/rozo-mpprouter/releases/download/v0.2.2/HackenProof.Audit.Report.for.MPP.Router.ROZO.pdf), published with release [v0.2.2](https://github.com/mpprouter/rozo-mpprouter/releases/tag/v0.2.2).
* Audit scope and how to reproduce the static checks: [audit/scope.md](https://github.com/mpprouter/rozo-mpprouter/blob/main/audit/scope.md).

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