"SPDX" matching MCP connectors:

SPDX license expression tokens, value discarded

SPDX license id shape

Open-source licenses MCP (SPDX).

x402 pay-per-call npm license triage. MCP tool check_npm_license — SPDX + permissive-default verdict before adding a dependency. $0.01 USDC on Base. Triage only, not legal advice.