Docs and this page

FirmTape docs

One guide a product: what it measures, where to find it, how to read it in thirty seconds, and every feature written up step by step.

It does not tell you direction. It tells you where the book stands and how far price may travel.

Direction was tested three independent ways on this data and is not there: momentum on negative gamma does not replicate over 2022 to 2026, the sign of net gamma carries nothing across horizons, and a random entry time beats the crossing of a gamma threshold. So there are no arrows on this screen and no trade calls in any message: there is nothing honest to put in them.

What holds up is size. The expected move is calibrated: over 1,088 sessions the close landed inside one expected move 72.4% of the time. Read the numbers for position size, stop width and whether the day's geometry suits your own model, never for which way to face.

Every number is a measurement from a named book: the volume book (the conventional public object, built here from the tape), the open-interest book, or the measured book, signed print by print from the tape and its quotes. The guides say which book each reading comes from.

The guides

REPLAY guideEvery finished session, minute by minute, plus today's levels delayed and the free tools, no account19 features LIVE guideThe SPX dealer book every second, with alerts, ASK, the structure tester and the levels in your own platform54 features ORDERS guideThe orders that built the SPX book, a card for every contract, and your own shorts checked every minute20 features LAB guideTest an idea on the full archive, then watch it draw and alert on the live chart9 features DATASET guideEvery finished SPX session as files, all three gamma books, updated every evening6 features GEO guideWhat the world published, from public records, as context for the session8 features

Every guide on one page, for reading straight through or searching with the browser.

Concepts

The words the guides use are explained one at a time on Learn, and the evidence behind every reading is on Research.

Reference

Reference	What it covers
Developers	Every API, webhook and MCP tool: keys, errors, limits, signing, one OpenAPI document
Levels API	The levels as JSON for plugins and scripts, with an OpenAPI document
MCP server	Point an AI assistant at the archive, and with a Lab token at LAB
Orders API	The order ledger over REST and MCP, keys and limits
LAB API	Compile, backtest and optimize from a script
LAB vocabulary	Every column a LAB rule can name, with unit, range and book
DATASET	The session archive as files: what they are and how they arrive
Data dictionary	Every field of the session files, by book
Learn	The concepts behind the readings, one page each

For AI agents

Every docs and features page has a Markdown copy at the same address with .md added (/docs.md, /docs/live.md). The list of them is /docs/llms.txt; the site's own summary is /llms.txt and the brief for assistants is /for-ai-agents.