Open-source Web3 prototype
CSPR AgentPay Guard
A policy-controlled payment firewall for autonomous agents using HTTP 402 and Casper Testnet proof recording.
ContextCasper Agentic Buildathon
StatusParticipating · 2026
FocusAgentic payments
Policy allow / denyRequest-bound receiptCasper proof
Product story
A policy layer binds payments to exact requests, applies allowlists and spending limits, rejects replay attempts, and exposes a Casper verification path without giving the hosted app access to private keys.
My contribution: Designed and built the policy engine, HTTP 402 flow, Casper integration path, audit trail, tests, and reviewer-facing dashboard.
What the public build demonstrates
- An autonomous agent receives an HTTP 402 payment requirement before the protected resource is released.
- Deterministic policy checks cover merchant scope, payment limits, budget, expiry, and replay protection.
- The public dashboard distinguishes hosted deterministic scenarios from separately verified Casper Testnet evidence.
Scope and accuracy
The hosted scenarios use deterministic demo state. The portfolio does not present the system as production escrow, custody, or unrestricted autonomous spending.