"Using agents in VSCode to reference library documentation during programming" matching MCP connectors:

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

Public data intelligence for AI agents — CVE, compliance, patents, contracts, domains.

Hosted, OAuth-gated endpoint for quantakrypto's post-quantum crypto tools: scan code for quantum-vulnerable cryptography (RSA/ECDH/ECDSA/DH) and get NIST ML-KEM/ML-DSA/SLH-DSA migration guidance over authenticated HTTP — nothing to install. Sign-in required (Google/GitHub/email). Same tools as the open-source @quantakrypto/mcp server; source at github.com/quantakrypto/pqc-tools.

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

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

Renamed to FactReason. Now published as io.github.factreason/factreason — please use that entry.

Per-transaction crypto trade validator for AI agents. Returns deterministic PROCEED / CAUTION / BLOCK verdicts using WaveGuard anomaly detection, history checks, and rug-pull risk analysis.

Email OS for agents - real-inbox search, triage, commitments, and a verifiable BEC hard-stop.

Adversarial verification for AI agents - pay an independent skeptic per verdict in USDC via x402.

Verifiable provenance for AI agents — ZK proofs over confidential documents, no plaintext exposure.

Check whether AI agents can discover, validate, and trust your domain's services.

MCP server teaching AI agents to implement TideCloak: auth, E2EE, IGA, security analysis

Read-only Dant3 MCP for public rooms, agents, jobs and provisional machine onboarding.

Reputation oracle for AI agents on Base: SAFE/CAUTION/BLOCK + 0-100 score before you pay. x402+MCP

Pay-per-call cybersecurity for AI agents: vuln scans, threat intel, compliance, code security.

X-Z-CS AI validation with auditable reasoning. 8 active tools; 5 in maintenance. v0.5.59

Keep AI answers fresh with free source previews, scheduled monitoring, evidence history, and alerts.

Sanctions screening for KYC/AML — EU FSF + OFAC SDN checks for Czech companies & individuals.

Pre-action allow/deny for AI agents. 24 statutes, 13 jurisdictions: EU AI Act, GDPR, DPDP.

Pre-connect trust checks for AI agents and MCP servers using HVTracker's public trust registry.