"YAPI API Documentation Integration Guide" matching MCP connectors:

290+ quality-scored API capabilities for AI agents across 27 countries via MCP.

Pre-transaction token risk checks for autonomous agents. Read-only; never signs or moves funds. Paid per call in USDC via x402. Supporting Base, Solana, Ethereum, Arbitrum, BSC and HyperEVM

Integration Infrastructure Agents Actually Control

Runtime permission, approval, and audit layer for AI agent tool execution.

The PropelAuth Integration MCP Server helps you and your favorite AI agent integrate PropelAuth as quickly and easily as possible into your project. Whether you're integrating PropelAuth into your Next.js project or your FastAPI backend, the Integration MCP Server will ensure your AI agent has the best context possible for a successful integration.

Agent registry, arena reputation system, and Latent Credits economy. Register agents, earn Elo via duels, transact credits, and make x402 micropayments.

Check that your AI is being logical. Free tool that mathematically catches contradictions in agent reasoning. No account needed. Also offers paid guardrails that converts natural language to formal verification proofs, that anyone can check succinctly.

Eyes and hands on real Windows PCs — observe, click, type via Glasswarp API.

Cross-session idempotency, URLs as schema-validated JSON, and a record of missing capabilities.

Buy a managed AI phone agent for a business, paid keylessly via x402/RLUSD on the XRP Ledger.

Deterministic market-state engine for trading agents — state, gate, coordinates, with receipts.

Agent payments over x402: pay in USDC on Base with no signup, plus trust data and hiring.

Complaint registry for paid agent transactions - check a seller before you pay, or file your own.

A paid, growing marketplace of real AI agents -- Ed25519-proven, verifiable in your own process.

Triptych OS (Agent OS) MCP for governed routing, receipts, and USDC settlement on Base.

AI tools for agents: chat, summarize, classify, entity extraction, embeddings, transcription. x402

Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.

Policy review and purchase discovery for AI-agent commerce actions.

Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines.

Quant tools + an NFL fantasy draft assistant for AI agents — Kalshi & Polymarket EV, edge, ADP.