STENT
Stent turns an existing HTTPS API into a paywalled per-request service with zero changes to the origin server. A publisher registers an endpoint, proves control of the origin by serving a stent-verify token (apps/proxy/src/verification.ts), and sets a USDC price; EIP-191 wallet signatures authorize later edits. The Express proxy verifies each x402 payment through Circle Gateway's @circle-fin/x402-batching middleware, and apps/proxy/src/settleLogic.ts enforces rate limits, replay checks, and a fail-closed ledger write, settling on successful upstream responses. The stent-sdk package wraps GatewayClient with a pre-signing spend cap and typed errors, a Next.js dashboard in apps/dashboard handles publishing and marketplace browsing, and the proxy carries a full test suite.
1 (Solo) — Tomiwa Adepoju
No-code x402 reverse proxy — monetize any API per request in USDC via Circle Gateway batched settlement on Arc.