Web3 Security Python Packages

chain-signer

Security suite for AI agents — catch the dangerous thing before signing: preflight EVM transactions for drains, inspect EIP-712 signatures for permit-phishing, and gate agent actions by policy. Pairs with any wallet/MCP stack; non-custodial wallet included.

agentic-wallet-guardian-mcp

Decision infrastructure for autonomous AI agents: evaluates a proposed blockchain action intent and returns an explainable ALLOW/WARN/BLOCK decision before execution, signed as a verifiable OAA token.

langchain-quantumscan

QuantumScan tools for LangChain, LangGraph, CrewAI, and AutoGen — pre-transaction safety checks + post-quantum crypto scanning for autonomous agents

cryptoguard-ai

AI agent safety layer for crypto transactions - blocks honeypots, blacklists, and rug pulls before they happen