Assay — A2A & MCP Provider Assurance Observatory
Live Observatory: https://assay-207908449630.us-central1.run.app
Assay continuously probes remote MCP, A2A, and x402 endpoints to verify liveness, pin canonical SHA-256 tools/list schema hashes (detecting silent MCP Rug Pulls), and scan for prompt-injection tool poisoning before your agent pays or executes a tool.