Sigillum
Sigillum is an x402-powered risk oracle for autonomous agents and developer workflows. Its Next.js API sells paid verification receipts as an external checkpoint before a risky code change or deployment proceeds: src/app/api/quote and src/app/api/inspect implement the quote, HTTP 402, payment, receipt flow. Static analysis in src/lib/sigillum/analyzer.ts flags dangerous APIs, secret exposure, unsafe dependencies, and prompt injection, while riskScoreFromFindings() in receipt.ts converts findings into a 0-100 score and policy.ts issues the decision. Payments settle in USDC on Arc through @circle-fin/x402-batching in src/lib/sigillum/payment/. Receipts carry payment provenance and PDF export, and a CLI ships in packages/cli.
1 (Solo) — Endurance Udoh
Sigillum is an x402-powered risk oracle for autonomous software actions. It lets an AI agent, CLI user, or GitHub workflow pay a small USDC fee to inspect a risky action before it continues. That action can be a code change, dependency install, deploy action, or similar software operation.