Understand the project
Practical overview
When it fits
Use R402 when the implementation is being built in Rust and the target integration involves the x402 payment protocol. Review its documentation first to determine whether it covers the required payment flow.
Who it is for
- Developers building Rust applications that need x402 payment-protocol integration.
- Teams exploring Ethereum or Solana payment tooling in the x402 ecosystem.
- Developers creating Rust-based x402 facilitator components.
Documented uses
- Integrate a Rust application with the x402 payment protocol.
- Build a Rust service that uses the x402 ecosystem.
- Develop an x402 payment facilitator component.
- Explore Ethereum- or Solana-oriented payment tooling within the documented ecosystem context.
Before you choose
Requirements & limits
The project is a public, accessible GitHub repository. It is identified as open source, and its README presents Apache-2.0 and MIT licensing options. No pricing or account requirement is documented.
- Rust is the stated implementation language.
- x402 is the stated payment protocol.
- Ethereum, Solana and x402 facilitator topics are present in the repository context.
- The available evidence does not specify APIs, supported assets or completed integration examples.
- The repository includes a docs/ directory for further technical review.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Evidence and transparency
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 1 October 2026
- Original website title
- qntx/r402 · Official homepage title · retained in its source language