About GEOMETRY
GEOMETRY is a hosted MCP server that provides deterministic date-related reference data as JSON for AI builders. Its tools cover calendars, seasons, moon phases, planetary retrogrades, and symbolic date and name systems, with a stated focus on 1900–2100.
Key features
- 01Resolve dates to calendar and season data
- 02Compare two dates across symbolic systems
- 03Map names to cosmic cards and cipher sums
- 04Return stable JSON for temporal references
Use cases
- 01Look up calendar and seasonal details for a date
- 02Compare symbolic data for two dates
- 03Find cosmic cards associated with a name
MCP support
GEOMETRY exposes three tools through a hosted MCP endpoint. The endpoint can be used without an account; builders can also supply a portal key.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://mcp.geometry.app/mcpclaude mcp add --transport http app-geometry https://mcp.geometry.app/mcp{"mcpServers":{"app-geometry":{"type":"http","url":"https://mcp.geometry.app/mcp"}}}Open in Cursor{"servers":{"app-geometry":{"type":"http","url":"https://mcp.geometry.app/mcp"}}}Open in VS Code{"mcpServers":{"app-geometry":{"type":"http","url":"https://mcp.geometry.app/mcp"}}}{"mcpServers":{"app-geometry":{"serverUrl":"https://mcp.geometry.app/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
8| Parameter | Type | Required | Description |
|---|---|---|---|
| date_a | string | Yes | Person A date YYYY-MM-DD (exactly two people; not a roster) |
| date_b | string | Yes | Person B date YYYY-MM-DD (exactly two people; not a roster) |
Details
From the project READMEGEOMETRY MCP
Deterministic temporal reference data for AI builders — calendars, seasons, moon phases, planetary retrogrades, and traditional symbolic systems as stable JSON over Model Context Protocol.
Same date → same bytes, every time. No hallucinated dates. No wallet connect. No seed phrases.
This repository is the public docs + listing face for the hosted GEOMETRY MCP server. It is not the engine source, schema, or internal design docs.
| MCP URL | https://mcp.geometry.app/mcp |
| Docs | docs.geometry.app |
| Product | geometry.app |
| Pricing | geometry.app/pricing |
| Company | Goqo Labs · GitHub org goqolabs |
| Official Registry | app.geometry/mcp |
| Glama | Connector listing · namespace search |
Namespaces: Glama listing id app.geometry.mcp ≠ Official MCP Registry name app.geometry/mcp. Connect URL is always https://mcp.geometry.app/mcp.
Repo layout
docs/— Mintlify pages (MDX, tools,llms.txt)docs/docs.json— Mintlify config (content root =/docs)logo/— brand assets at repo root (favicon + light/dark)
Try it (no account)
Paste the branded URL into your MCP client:
https://mcp.geometry.app/mcp
| Client | Auth |
|---|---|
| Claude Desktop / Claude Code | Custom connector · plain URL |
| ChatGPT Plugins | Server URL · Authentication = No Auth (not OAuth) |
| Cursor / VS Code | HTTP MCP · plain URL |
Cursor / VS Code (mcp.json)
No Auth try:
{
"mcpServers": {
"geometry": {
"url": "https://mcp.geometry.app/mcp"
}
}
}
Builders with a portal key (never commit a real zpka_):
{
"mcpServers": {
"geometry": {
"url": "https://mcp.geometry.app/mcp?key=YOUR_KEY"
}
}
}
Install walkthroughs: geometry.app/tutorial · Quickstart.
Limits apply on the free try path — see pricing.
Builders (Free / Starter key)
For a stable sandbox quota or paid volume, subscribe in the Developer Portal, then append your key:
https://mcp.geometry.app/mcp?key=YOUR_KEY
Same tools and fields on every plan — you pay for volume, not features. Checkout is the official Zuplo Developer Portal (https://geometry-main-bf0a4d2.zuplo.site/pricing), then Stripe — Billing · Connect & keys · Pricing.
Never paste zpka_… keys into GitHub Issues or public chats.
Tools
| Tool | Purpose | Docs |
|---|---|---|
get_date | Resolve one civil date to stable calendars, seasons, and card identity | Date identity JSON |
get_compatibility | Compare two dates across shared symbolic systems | Two-date compatibility |
get_name | Map a name to cosmic cards plus ~100 Latin cipher sums | Name → cosmic cards |
Coverage focus: 1900–2100. Ask examples: “What’s the birth card for 1985-03-15?” · “How compatible are 1990-05-14 and 1985-11-02?”
Support
docs.geometry.app/support · GitHub Issues (paid plans)
License
See LICENSE.
The MIT license applies to the documentation in this repository only. The GEOMETRY engine, schema, and hosted service are proprietary and are not included here.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.