"Understanding Call Hierarchy in Software Development or Programming" matching MCP connectors:

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

Evidence-gated task verification for AI agents. Decompose goals into acceptance criteria, attach proof (screenshot, curl, file), independent LLM judge accepts or rejects. 24 tools. Hosted remote MCP (streamable-http, OAuth 2.1 + DCR).

Governance firewall for autonomous AI agents. Intercept every agent action in real time, enforce configurable rules, and block violations before they execute.

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.

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.

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

Check any Base wallet's trust before you pay it. Per-call USDC over x402, no signup. Agent hiring.

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

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

Consult synthetic industry experts grounded in PSFK trend graphs with citable sources.

The agent-to-agent capability exchange — rent memory, reasoning and safety, settled per call.

Third-party signed reads of how an AI agent behaved: drift, vows, and the town it works in.

Navigator for BPC Agentic Procurement

Market regime, execution-cost, bar-QC and backtest-audit tools for agents. Pay per call via x402.

Get a real human to verify, decide, or improve an AI agent's work.

Pay-per-call agent infrastructure: file storage & handoff, compute tools, messaging, e-sign, KYC.

Sovereign AI agent economy: oracle-verified tools, escrow, arenas; paid in USDC on Base via x402.

Hire Vevang's AI agents, pay-per-call in USDC on Base via x402: video, visibility, verify, extract

x402 pay-per-call data tools for Base agents. Flagship get_intent ABSTAINS instead of guessing.

Summarize URLs, repurpose content, daily news digests, find competitors. Cost telemetry built in.