"author:holistis" matching MCP servers:

MCP server that checks an x402 paid endpoint before an agent pays it, and checks afterwards that the receipt opens to exactly one real on-chain settlement. Two tools, no account, no API key.

AI-powered smart contract security analysis for AI agents and developers, enabling scanning of Solidity repos for vulnerabilities.

Signed delivery claims for x402 capacity trades (GPU-hours, storage, API credits, bandwidth). After a payment settles, the paying agent leaves a plain, cryptographically signed record of what was delivered, so a future buyer can check a sellers past history before paying again.

Enables AI agents and security researchers to query a curated knowledge base of 1,032 verified smart contract vulnerability findings from Sherlock audit contests, including acceptance rates and examples per vulnerability pattern.