"Spring Boot" matching MCP connectors:

Sanitize PII from text before it reaches LLMs. Redacts emails, phone numbers, national IDs, private keys, and financial data. Supports EN, ES (LATAM), PT (BR/PT), DE, JA. No authentication required — single POST request.

Signed attestations for agents, $0.01/call via x402: URL witness, AI permission, tx finality, JWKS.

sipi.bot — Spend Firewall for AI Agents

io.github.kindrat86

Pre-spend firewall for AI agents. Approves, blocks, flags transactions against policy rules.

Issue, rotate and revoke scoped API-key passes for 25+ providers — the agent never sees a real key

SiliconBridge

io.github.aataqi-boop

Human-in-the-loop API for AI agents. CAPTCHA, OTP, KYC, and approvals by real humans.