"Understanding OAuth 2.0 Protocol" matching MCP connectors:

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

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.

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.

Google-OAuth-gated LLM gateway: verify a Google ID token, then run a Gemini (Vertex AI) completion f

Fail-closed action authorization, MCP risk scanning, x402 checks, and signed receipts.

Hash passwords with bcrypt and issue/verify JWT session tokens over A2A + MCP.

AI agent identity and reputation protocol on ICP. Register agents, verify reputation, push metrics, and manage credentials.

Scans remote MCP servers for protocol, security, and TLS issues; exposes scan tools via MCP.

GitHub Private MCP Pack — access private repos, org data via OAuth.

Keycloak identity management expert with semantic search, protocol guides, and config analysis

PostgreSQL, MySQL, OpenAPI/Swagger, and shared Agent Memory with scoped access.

CVE intelligence, STRIDE, OWASP test cases via Ansvar Gateway. Cited, OAuth + paid.

Cited EU & global law, regulations & security frameworks via Ansvar Gateway. OAuth, free + paid.

Zero-value tracer token system that tracks AI agent activity across the internet. Agents earn tokens by submitting threat intelligence traces, with free trust verification (verify_trust) and paid threat intelligence feeds. 8 tools: submit_trace, check_token_balance, mutate_token, get_trace_schema, verify_trust (free) + threat_intelligence_feed, bulk_verify_trust, query_trace_analytics (paid).

Protects AI coding agents from installing malicious open source packages. Every npm and PyPI package is checked against SafeDep’s real-time threat intelligence before installation.

Verify x402 endpoints and prepare agent-catalog listings before agents pay.

Managed MCP gateway for PostgreSQL. Connect Cursor, Claude Desktop, VS Code, and Windsurf to your database with per-table permissions, encrypted credentials, and a full query audit trail. OAuth 2.0 authentication, free tier available.

Session Cert $0.25/10 Ed25519 PASS before mutating SQL. OAuth≠authorize. Instant $0.05. MCP+x402.

KYC, KYB, AML, wallet screening, transaction monitoring, and fraud workflows for AI agents.

Query Truss threat intelligence via hosted MCP (OAuth). Growth+ plans.