> ## Documentation Index
> Fetch the complete documentation index at: https://docs.geometry.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Deterministic temporal data for AI builders — via MCP.

# GEOMETRY

GEOMETRY is a **deterministic temporal semantic layer** for LLMs. You ask date-keyed questions; you get the same structured JSON every time.

**Public MCP URL (canonical):**

```
https://mcp.geometry.app/mcp
```

Site: [geometry.app](https://geometry.app) · Company: [goqo.com](https://goqo.com)

## What you get

* Birth cards, calendars, moon phases, seasons, retrogrades, and related systems on a **1900–2100** date spine
* MCP tools for Claude, Cursor, and other clients — no Node install for the hosted path
* Soft launch / public beta: data layer is stable; self-serve keys and quotas still evolving — free URL works to try

Docs show teaching samples. **Full payload** = call a tool ([Tools](/tools/overview)); every live response is complete JSON.

## Next

1. [Quickstart](/quickstart) — paste the connector URL
2. [Connect & manage your key](/connect-and-keys) — when plans / keys are on
3. [Why deterministic](/why-deterministic) — same question, same bytes
4. [Tools](/tools/overview) — what each tool returns
5. [Support](/support) — GitHub Issues (builder contact)