Fail-closed authorization gateway for agentic RAG — capability-label pushdown, deny-aware barriers, per-turn agent-context revalidation.

StripeOnChain is a middleware service that independently monitors blockchain networks to verify on-chain USDC settlement of Stripe stablecoin payments.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Stripe-native usage metering with real-time cost projections, exactly-once processing, and invoice parity guarantees. Open-source billing transparency for SaaS.

Stripe-native usage metering with real-time cost projections, exactly-once processing, and invoice parity guarantees.

Deterministic LLM testing for CI. Record→Replay + policy-as-code to block risky merges (PII, schema drift, regressions, budget creep).

Deterministic LLM contract checks for CI. Replays recorded fixtures, enforces schema/regex/budget rules, generates HTML/JUnit/JSON reports, and comments on PRs. Zero live model calls in CI.

Support & RAG Assistant demo using PromptProof SDK + Action. Records LLM interactions to fixtures and validates contracts (PII, schema, budgets, disclaimers) locally and in GitHub Actions.

DEFI Focus Smart Contract Security Capture the Flag

Here we collect and discuss the best DeFi, Blockchain and crypto-related OpSec researches and data terminals - contributions are welcome.

weird erc20 tokens