Yantrix is an AI API marketplace for autonomous agents — 25 APIs, 51 MCP tools, all pay-per-call via x402/USDC on Base mainnet. No subscriptions, no accounts needed. Includes: fact verification, code review, security audit, document intelligence, meeting analysis, resume scoring, Indian data APIs (pincode, IFSC), crypto & finance data, and more. One command: npx @yantrixai/mcp — works with Claude Desktop, Cursor & VS Code instantly.