"Reversing MD5 hash of a phone number to retrieve the original number" matching MCP connectors:

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.

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

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.

Identity infrastructure for the AI economy. Confirms if someone is known; returns inferred traits.

The trust harness for AI agents. Set what an agent can do before it acts.

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.

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.

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.

Verify VerixID proof-of-existence records and optionally prove ownership.

Capture a web source, or seal a hash you hold, into a signed receipt anyone can verify offline.

Inventory and audit your agent fleet over MCP: audit_mcp_config returns risk-ranked findings with a 0-100 posture score, scope_check ranks tool-manifest blast radius, audit_skill_file and injection_scan screen untrusted skill files and text, and inventory_report builds a governance inventory with risk tiers. All analysis is deterministic and local to the request.

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

Zero-install remote MCP server for proof-of-existence file attestation.

Check how many years of verifiable history a person has behind accounts they already own.

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

Trust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev register.

Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.

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

Council of AI GSPC: measure + verify signed governance credentials.