"A scheduler that invokes an agent based on a predefined schedule" matching MCP connectors:

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

AI reasoning checks any document against known international standards before your agent acts on it.

Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.

Neutral fairness computation for agents: two or more parties submit sealed inputs, a published deterministic algorithm runs (fair division, verifiable random selection, Shapley shares), and every party receives an identical signed certificate anyone can re-run and verify for free.

Verify anything: email, phone, domain, URL and IBAN validation, phishing/malware URL screening, and OFAC sanctions checks. Pay-per-check in USDC on Base via x402 — no signup, no API keys.

Is a wallet frozen by Tether/Circle? Free freeze checks + full history, screening & KYT. 9 chains.

Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.

Read-only MCP server for turva.dev, an agent-readiness audit and advisory service.

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

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.

IOCs (URLs, domains, IPs, hashes) shared by the infosec community on X/Twitter. No auth, CC0.

Verify x402 payment endpoints before an AI agent pays: scam scan, on-chain checks, trust scores.

Confirms an AI agent/service is who it claims to be (domain + agent-card + MCP handshake).

Trusgent MCP — Trust Layer for AI agents. HK registry + Agent Cards. Default: get_merged_profile.

One read-only public-page readiness check with a signed, recheckable evidence receipt.

Free MCP context preflight with local redaction and a paid HTTP upgrade.

Audit MCP configs and skill files for over-broad scope and injection risk. 6 of 8 free.

Authorize x402 payments before signing with request-bound, signed safety decisions.

Read-only Remote MCP for externally grounded AI agent trust receipts.