"An overview of Google Workspace" matching MCP connectors:

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

Discovery, OAuth, project operations, and exact project MCP handoff for Spala backend projects.

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.

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.

Control Plane (controlplane.com): deploy and operate workloads across AWS, GCP, Azure, and more.

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

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).

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

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

Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli

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

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

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

Query 90 days of honeypot probe data: IP reputation, scanners, CVE probing, TLS/SSH fingerprints.

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.

CSOAI (UK 16939677) GSPC measurement over MCP: assess, board (13 of 14), verify cards.

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

Free check; paid report $0.05; check_batch/who/md/headers/json/sanctions/domain/email/bizdays $0.01.

Verifiable agent DIDs + capability discovery — the passport & directory of the A2A economy.