The AI-to-AI Protocol Layer that catches unreliable agent outputs before they cost you money. Claim-level verification, escrow, and slashing. 224 tests, 12/12 adversarial patterns caught.
nexus is an early-stage Python project in the AI payments / x402 ecosystem, focused on a2a, agent-to-agent, agent-verification, ai. It currently has 2 GitHub stars and 0 forks, and sits alongside related tools like capiscio-mcp-python, tap, capiscio-sdk-python.
CapiscIO MCP Guard - Secure your MCP tools with agent-to-server authentication, authorization, and audit logging
Cross-vendor agent-to-agent protocol — Claude, Codex, and Gemini communicate via file-based P2P messaging.
Runtime security middleware for A2A (Agent-to-Agent) protocol agents. Provides always-on validation, signature verification, and rate limiting for AI agent interactions.