@faremeter/middleware

Server middleware for adding payment walls to API endpoints using the x402 protocol.

Installation

``bash
pnpm install @faremeter/middleware
`

Features

- Paywall any endpoint - Add middleware` to any route
- Framework agnostic - Express, Hono, or custom
- Multi-chain support - Solana, EVM, extensible
- Fast validation - Payment requirements caching
- Facilitator integration - Handles settlement verification

API Reference

Examples

See working examples in the faremeter repository:

- Express + Solana
- Express + EVM
- Hono + Solana

Related Packages

- @faremeter/fetch - Client-side fetch wrapper
- @faremeter/info - Network/asset configuration helpers
- @faremeter/facilitator - Payment facilitator service

License

LGPL-3.0-only