"Information about backend development or backend systems" matching MCP connectors:

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

Classify data safety before storing or sharing. GDPR, HIPAA, PCI-DSS, CCPA. AI-powered.

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.

MCP server for detecting and redacting PII (Personally Identifiable Information) in PDF documents.

Verify a skill, tool, or package for malicious behavior before your agent installs it. Hosted.

Hosted endpoint for patch-tuesday-mcp: query Microsoft Patch Tuesday security updates (MSRC) with EPSS and CISA KEV enrichment. Free, no auth or API keys.

Trust scoring for x402 endpoints — "should my agent pay this?" check_endpoint runs live diligence: x402 spec-compliance probe, price sanity vs market percentiles, payTo wallet on-chain activity (Base), directory presence, infra hygiene. Returns 0-100 score with per-check evidence. compare_price positions any price vs category market data. Pay-per-call via x402: $0.02/call USDC on Base, no account or API key. tools/list free.

Scans text for personally identifiable information — emails, phone numbers, SSNs, credit card numbers, physical addresses, names — and returns a redacted version. Built for agents sanitizing user content, support tickets, logs, or documents before storage, sharing, or feeding into another LLM call. Pay-per-call via x402 (USDC on Base): $0.01/call, no account or API key. tools/list and /openapi.json are free for discovery.

Query WHOIS/RDAP information for domains, IP addresses, CIDR prefixes and ASNs. Self-hostable.

x402-gated safety checker for npm and PyPI packages. Built for AI coding agents to call before running npm install or pip install — flags nonexistent/typosquatted names, known CVEs (OSV.dev), and suspiciously new or low-download packages. $0.005 USDC per check on Base mainnet

Supply chain risk scoring for npm, PyPI, Cargo, and Go. 9 tools. Behavioral signals.

Find known subdomains of a domain. Passive data; may include historic entries. List or count.

Is this AI agent or x402 service real and settlement-backed before you pay it? Trust check.

Scan configs, files, or text for leaked secrets and obvious misconfigurations. Nothing stored.

Risk-ranked registry of AI tools: look up an AI tool's risk or check if a domain is shadow AI.

Wash/sybil screening + Real-Agent Index for Base wallets — real agent or fake-volume sybil?

Scan any website or MCP server for agent-trust-readiness; returns a signed, verifiable scorecard.

Verify business legitimacy by domain or name in <2s. Trust score, verdict, evidence. x402-payable.

security tools for AI agents: URL safety scanning, prompt injection detection (200+ patterns), email/password breach checks via HIBP, domain & IP reputation analysis, and AI skill supply chain scanning. Free tier (3 calls/day) or pay-per-request with USDC micropayments via x402.