FirmTape - SPX, ES, NQ, RTY gamma levels, 100+ symbols
SPX, ES, NQ and RTY futures gamma levels (GEX), 1,000+ SPX sessions, plus 100+ ETFs and stocks
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Settings → Connectors → Add custom connector
URL: https://mcp.firmtape.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://mcp.firmtape.com/mcp{
"mcpServers": {
"spx-options-gamma": {
"url": "https://mcp.firmtape.com/mcp"
}
}
}claude mcp add --transport http spx-options-gamma https://mcp.firmtape.com/mcp{
"servers": {
"spx-options-gamma": {
"type": "http",
"url": "https://mcp.firmtape.com/mcp"
}
}
}13 tools, verified live
get_market_moving_minutesread-onlyThe minutes of one finished SPX session that the tape itself marked as market-moving, with what stood beside each: the scheduled event that owned the minute, the moment two or more public news desks carried an item (timed to the second, labelled by class, never the headline's text), or the honest reading that no headline existed and the dealer book moved on its own. Each minute carries the index m
get_eventsread-onlyThe scheduled US market events for a window of days, from the same calendar the FirmTape terminal draws: FOMC decisions, press conferences and minutes, CPI, payrolls, PCE, PPI, GDP, retail sales, JOLTS, ISM, the Fed Chair's speeches, the Beige Book, 10/20/30-year Treasury auctions, mega-cap earnings, monthly and quarterly expiration and early closes. Each event carries its minute in ET, a link to
list_sessionsread-onlyList the finished SPX trading sessions in the free FirmTape archive, newest first, with the total count and how far back coverage runs. Every listed day can be fetched with get_session / get_levels and replayed free at FirmTape. Use when: you need to know which days exist, or the size and span of the archive, before asking about one. Not for: any measurement about a day — call get_session with tha
get_coverageread-onlyWhat the free FirmTape SPX archive holds: the first and last finished session, how many sessions, and the NYSE trading days in that span that are MISSING from it (weekdays minus US market holidays; early closes count as trading days), optionally inside a from/to window. Use when: 'is 2024-03-15 in the archive', 'how complete is 2023', 'which days are missing' before a study that needs every sessio
screen_sessionsread-onlyFilter the finished SPX sessions in the FirmTape archive by their closing measurements and count them: regime at the close and at the open, zero-gamma flip crossings, direction and size of the move, net-gamma percentile, 0DTE ATM IV at the open, the calendar event, weekday and year. Returns how many sessions match, two shares over them (closed above the flip, mean absolute move) printed next to th
similar_daysread-onlyFind the finished SPX sessions whose state at the same time of day was nearest to one moment, and what the rest of each of those days did. The state is eight volume-book measurements: distance from the zero-gamma flip, move since the open, distance from the session mean, net-gamma percentile, 0DTE ATM IV and its change since the open, the range so far, and the time spent above the flip. Returns th
get_sessionread-onlyEverything FirmTape measured for ONE finished SPX session: OHLC and VWAP, the zero-gamma flip and how often price crossed it, call/put walls, net-gamma percentile, ATM IV at the open. Use when: you want a whole day in a single call. Not for: the level set alone (get_levels returns the same day, narrower), how the levels moved across days (get_level_history), or gamma by strike (get_gex_profile). E
get_level_historyread-onlyHow the SPX dealer-positioning levels MOVED across recent finished sessions: the zero-gamma flip, call wall and put wall day by day, each session's change from the one before, and summary statistics for the window (flip range, net drift, mean daily movement, how often price closed above the flip). Use when: the question is about a trend or a window — has the flip been climbing, how far does it tra
get_symbol_gammaread-onlyThe latest dealer gamma picture for a symbol OTHER than the SPX archive: index, ETF and stock option chains (for example QQQ, SPY, IWM, NDX, RUT, NVDA, TSLA, GLD, TLT), and the E-mini futures ES, NQ and RTY (MES, MNQ, M2K): ES/NQ/RTY are the SPX/NDX/RUT books moved by the day's basis (future minus index, from put-call parity on the index options; no CME data). Returns spot, the zero-gamma flip, ca
get_levelsread-onlyOnly the dealer-positioning level set for one finished SPX session: zero-gamma flip, call wall, put wall, plus where the session closed relative to them. A strict subset of get_session. Use when: the levels are the whole question and the rest of the session would be noise. Not for: OHLC, flip crossings, net-gamma percentile or ATM IV (get_session); more than one day (get_level_history); gamma by s
get_gex_profileread-onlyThe SPX dealer gamma LADDER for one minute of a finished session: gamma by strike around spot, the level set, and the heaviest strikes. Read by default as the VOLUME book, the one the terminal's chart draws; also as the MEASURED book (signed off the trade tape, FirmTape's own read) or the OPEN_INTEREST convention every other public GEX chart draws — the same minute through three lenses. The level
searchread-onlySearch FirmTape for documents about SPX dealer positioning: the explainer pages, the dated research measurements, and the archive of finished trading sessions. Returns ids to pass to `fetch`. A date in the query ("2026-08-24", "August 24 2026", "August 2026") finds the session or sessions for it. Clients that can call the specific tools should prefer list_sessions / get_session / get_levels / get_
fetchread-onlyRetrieve the full text of one FirmTape document by the id `search` returned: `session:YYYY-MM-DD` for a finished trading session, `page:/path` for an explainer or research page. A FirmTape URL or a bare YYYY-MM-DD trading day is accepted too. Use when: you hold an id from `search`, or a client that only speaks search/fetch (ChatGPT). Not for: structured numbers — get_session and get_levels answer
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