# Give your AI assistant the dealer book, session by session.

> Add one address and your assistant can read every finished SPX session: the flip, the walls, how they moved over a week, a ticker's latest book and the market calendar. Sign in and it can compile and backtest an idea in LAB without leaving the conversation.

Source: https://firmtape.com/features/replay/mcp-server

Free tools need no account and no key; LAB tools need a sign-in or a Lab token and spend LAB credits.

![The MCP server's free tools: list_sessions, get_session, get_levels and get_level_history with what each returns](https://archive.firmtape.com/press/features/data/mcp-tools.1c08c461.webp)

**Why:** ask your assistant about dealer positioning and get answers built on measurements, not on what it remembers. **Where:** the address and the connect steps are on [MCP](https://firmtape.com/docs/developers/mcp).

## How to use it

1. Add the server's address from [MCP](https://firmtape.com/docs/developers/mcp) to your assistant as a remote MCP server.
2. Ask about a session, a level or a week: the assistant calls the free tools.
3. To backtest from the assistant, sign in when it asks, or give it a Lab token.

## How to read it

- A ticker's book comes from five-minute chain snapshots with a trust grade; it is not a tape-signed book.

## What it measures

Only derived per-session measurements cross the interface, one session per call: the levels, the regime, the percentiles and the events. Nothing on it is a trade call.

| Tool | What it answers |
| --- | --- |
| list_sessions | The finished trading days in the archive, newest first |
| get_session | One session: open, high, low, close, the flip and its crossings, the walls, the gamma percentile, ATM IV |
| get_levels | The level set of a day and where the session closed against it |
| get_level_history | How the flip and the walls moved over up to 40 sessions |
| get_symbol_gamma | The latest book of a ticker other than SPX, or of ES and NQ |
| get_events | The market calendar for a window, with what usually followed each kind of event |
| get_gex_profile | Gamma by strike of a session |
| screen_sessions | Filters and counts sessions across the archive |

## Limits

One session per call. LAB tools spend the same credits as the terminal. The tool list and the connect steps for each assistant are on [MCP](https://firmtape.com/docs/developers/mcp).

## Related

- [REPLAY](https://firmtape.com/features/replay)
- [REPLAY: Pages for AI assistants](https://firmtape.com/docs/replay#for-ai-agents)
- [LAB: The LAB desk and the backtest](https://firmtape.com/features/lab/backtester)
- [REPLAY: The session archive and session pages](https://firmtape.com/features/replay/session-archive)

## Questions

**Does it cost anything?**

The free tools need no account and no key. LAB tools need a sign-in or a Lab token and spend LAB credits.

**Which assistants can connect?**

Any client that speaks the Model Context Protocol to a remote server. The connect steps are on the MCP page.

**Can it read today's live book?**

No. It reads finished sessions and the latest ticker books; the live stream is the terminal.

**Will the assistant give trade calls from it?**

The server returns measurements only. What an assistant says with them is its own; FirmTape sends no side and no forecast.