Armory x402 SDK — Payment middleware for Express v5. Accept x402 payments from any client in your Express app. 100% compatible with Coinbase x402 SDKs.
middleware-express is an early-stage JavaScript/TypeScript project in the AI payments / x402 ecosystem, focused on x402, ai, agentic commerce, ai agent. It currently has 0 GitHub stars and 0 forks, and sits alongside related tools like middleware-hono, middleware-elysia, middleware-next, extensions, base, x402-deploy.
Armory x402 SDK — Payment middleware for Hono. Accept x402 payments from any client in your Hono app. 100% compatible with Coinbase x402 SDKs.
Armory x402 SDK — Payment middleware for Elysia. Accept x402 payments from any client in your Elysia app. 100% compatible with Coinbase x402 SDKs.
Armory x402 SDK — Payment middleware for Next.js App Router. Accept x402 payments from any client in Next.js. 100% compatible with Coinbase x402 SDKs.
Armory x402 SDK — Protocol extensions for x402 payments. Add SIWX, payment ID, Bazaar discovery, and custom extensions.
Armory x402 SDK — Core protocol types, EIP-712 signing, encoding, network configs, and token registry. 100% compatible with Coinbase x402 SDKs.
Turn any API or MCP server into a paid service with x402
Open Source AI trading agent that operates autonomously across 1000+ markets - Polymarket, Kalshi, Binance, Hyperliquid, Solana DEXs, 5 EVM chains. Scans for edge, executes instantly, manages risk while you sleep. Agent commerce protocol for machine-to-machine payments. Self-hosted. Built on Claude.
Drop-in OpenAI Python client with transparent x402 payment support.
TypeScript Interface for Machine Payments Protocol
Drop-in OpenAI Typescript client with transparent x402 payment support.
Production-ready x402 facilitator server.
Rust SDK for the x402 payment protocol.