"SPDX" matching MCP connectors:

Real-time SPX 0DTE options dealer market-structure for agents: GEX, walls, gamma flip, vol regime.

Backtest SPX gamma exposure (GEX) rules: dealer flip, call/put walls, 1,000+ session archive

Real-time SPX (0DTE) options dealer market-structure for agents: call/put walls, gamma flip, net GEX, dealer regime (CHOP/TREND/BREAKOUT), forecast band, VIX term structure, historical replay, and event webhooks. Over MCP (Streamable HTTP) or a REST v1 mirror on one key. Informational data only; not investment advice, and not the Defiance ZDTE ETF.

Open-source licenses MCP (SPDX).

SPDX open-source license list with full text

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.