"Signal" matching MCP connectors:

Check whether a NAICS code aligns with a vertical: a routing-for-review signal, not a determination.

Daily regulatory monitoring for U.S. estate, trust, and tax law changes. MCP-native with the x402 micropayment support. Updated daily from the Federal Register and IRS.

Trademark clearance (USPTO+TMview) and self-graded stock signals for AI agents. JSON verdicts.