Gex Live MCP¶

A hosted MCP server that serves measured SPX dealer positioning - zero-gamma flip, call/put walls and hold band for 1,000+ finished sessions - with a backtesting Lab behind an account login. gex.live is measurement-only by design: no buy/sell signals, no trade recommendations, just derived per-session aggregates verifiable against the free history on the site. Three tools are open with no account and no key; five more drive the Lab conveyor that turns a plain-English trading idea into a compiled rule, a backtest and a quant optimization. The endpoint (mcp.gex.live/mcp) is live and returned the full free tool list to an anonymous probe.

Server type: Remote (Streamable HTTP)
Auth: None for 3 free tools; OAuth sign-in or labk_ token for Lab tools
Endpoint: https://mcp.gex.live/mcp
Registry: live.gex/gex-mcp (official MCP registry)
Tools: 8 (3 free archive reads + 5 Lab: compile, run, state, thread, idea)
Pricing: Free archive tools; Lab runs cost 1 credit each (refunded on failure)
Built by: gex.live

Why This Matters for Operators¶

Options-market context has always been expensive to obtain and easy to misread. Gex Live turns dealer-positioning research into a plain-English question your agent can answer in seconds - "where was the zero-gamma flip on August 13, and where did the session close against the call wall?" - with every figure traceable to a finished session in the public archive. The measurement-only posture (no signals, by design) is what makes it safe to wire into an agent: nothing here tells you to trade, it tells you what the tape showed.

The Lab is the second half. An analyst describes a rule in words ("fade a +3 sigma stretch above vwap on top-decile volume"), the conveyor compiles it into a testable spec, backtests it with era tables, then quant-optimizes variants, and returns every variant instead of picking a winner. The judgment stays human, which is exactly where it belongs.

Tools & Capabilities¶

Tool	Purpose
`list_sessions`	Finished SPX trading days in the archive, newest first, up to 50 per call
`get_session`	One session: OHLC, zero-gamma flip and crossings, call/put walls, hold band, net-gamma percentile, ATM IV
`get_levels`	Just the level set and where the session closed against it
`lab_compile`	Turn a plain-words idea into a testable rule or amend an existing one (free)
`lab_run`	Run the current conveyor step - backtest, then quant optimize (1 credit each)
`lab_state`	All your ideas, stages, results, the current conveyor holder and credit balance
`lab_thread`	The compile-chat history for one idea - how the rule reached its wording
`lab_idea`	Desk actions: desk, drop, delete, set display and alert options

Installation¶

claude mcp add --transport http gex https://mcp.gex.live/mcp

The free tools appear immediately. Sign in with your gex.live account (Connect flow) to unlock the Lab tools; scripts can attach a labk_ token as a Bearer header instead.

Configuration¶

{
  "mcpServers": {
    "gex": {
      "type": "http",
      "url": "https://mcp.gex.live/mcp"
    }
  }
}

Business Relevance¶

Fund managers and RIA analysts verify dealer-positioning context against a public, dated archive instead of vendor decks.
Options educators generate concrete session examples with real level sets for teaching material.
Quant-curious operators compile and backtest rule ideas without standing up their own data pipeline.
Trading-desk juniors query the same tape measurements the desk argues about, with answers sourced to a session date.

Integration with CorpusIQ¶

Gex Live is a research feed, and it composes cleanly with the financial data CorpusIQ already exposes. An agent can pull a company's fundamentals through CorpusIQ's financial connectors, then use Gex Live's get_session to check the market regime on the relevant dates - earnings-day dealer positioning, say - so the context around a number is as explicit as the number itself.

The Lab output flows the other way: backtest verdicts and era tables from lab_run are structured JSON an agent can log or compare alongside portfolio metrics pulled through CorpusIQ. The measurement-only design means nothing in this pipeline fabricates a signal; both tools just answer the questions an operator asks.

Limitations¶

New listing: no established track record as an MCP server yet.
SPX-focused and 0DTE-derived: useful context, not a complete market picture.
Lab tooling requires an account and a credit balance; paid runs return 402 when credits run out.
Measurement-only by design - if you want signals, you bring them yourself.
Not investment advice; backtested performance does not guarantee future results.