# GEOMETRY

> Fixed, structured answers for date questions — Cosmic cards, calendars, moon phases, seasons, retrogrades, and ~30 systems on 1900–2100. Connect over MCP.

## Canonical MCP URL

https://mcp.geometry.app/mcp

Use this URL only in install instructions.

## Docs

- [Who we are](https://docs.geometry.app/introduction.md): What GEOMETRY is
- [Quickstart](https://docs.geometry.app/quickstart.md): Paste the connector URL — prefer Claude for NL; ChatGPT quirks documented
- [Install walkthrough](https://geometry.app/tutorial/): Animated installs for every client above on geometry.app
- [FAQ](https://docs.geometry.app/faq.md): Prefer Claude · ChatGPT `@geometry` + new chat if tool drops · tool routing
- [Where your key goes](https://docs.geometry.app/connect-and-keys.md): `?key=` URL form, rotate, cancel
- [Billing](https://docs.geometry.app/billing.md): Official portal `https://geometry-main-bf0a4d2.zuplo.site/pricing` — Zuplo then Stripe. MCP tools stay at `https://mcp.geometry.app/mcp`
- [Why deterministic](https://docs.geometry.app/why-deterministic.md): Same call → same JSON — pre-computed lookup, no live ephemeris
- [What you get](https://docs.geometry.app/payload-shapes.md): The tools, payload conventions, and repeating shapes
- [get_date](https://docs.geometry.app/tools/get-date.md): Primary single-date lookup — moon, season, Rx, calendars, Cosmic card, day_ruler, karmic source/spirit, 14 planetary Life-spread cards (Production)
- [get_compatibility](https://docs.geometry.app/tools/get-compatibility.md): Two-date compatibility score (Production)
- [get_name](https://docs.geometry.app/tools/get-name.md): Name → Cosmic Cards (Production)
- [get_team_chemistry](https://docs.geometry.app/tools/get-team-chemistry.md): MLB WS / postseason roster Cosmic stacks (Production)
- [get_plays_numerology](https://docs.geometry.app/tools/get-plays-numerology.md): Play-level HR/K day·jersey patterns — Retrosheet ids e.g. ohtas001 (Production)
- [When it covers](https://docs.geometry.app/coverage.md): Systems on the date range + calendar boundaries (two date families — sky events GMT; cultural years per tradition)
- [Astro wheels](https://docs.geometry.app/astro-wheels.md): Five sign systems + ecliptic degree spans — tropical · vedic_rasi · fagan_bradley · sidereal_iau · sidereal_true (disagreement across wheels is expected)
- [Cosmic day cards](https://docs.geometry.app/cosmic-day-cards.md): Month × day calendar — 366 Cosmic faces (Feb 29 = 9♣, Dec 31 = W★)
- [Field glossary](https://docs.geometry.app/field-glossary.md): `_no` fields — tradition vs catalog ids, `0`/`none` sentinels
- [HTTP API](https://docs.geometry.app/http-api.md): Soft launch is MCP-only; branded `api.geometry.app` HTTP door deferred (not cancelled)
- [Support](https://docs.geometry.app/support.md): Self-serve for free / keyless; GitHub Issues for paid plans only (product / connectivity bugs)

## Support

Builders: https://docs.geometry.app/support — docs / portal / walkthrough first. No public product email.
GitHub Issues: paid plans only (Starter+); free / keyless = self-serve. Scope = product / connectivity failures — not zodiac or calendar disagreements (/astro-wheels · /coverage#calendar-boundaries).
Leaked key: roll in Developer Portal — https://docs.geometry.app/connect-and-keys (never paste the key).

## Rules for agents

The full agent cheat sheet — tool routing, input format, sentinels, `_no` vs tradition numbers, the never-retype-glyphs hazard, the two date families (sky = GMT, cultural years = per-tradition civil timezone), and the five `astro_wheels` — is the skill file: **/skill.md** (also at `/.well-known/skills/geometry/skill.md`). GEOMETRY returns structured reference data; interpretation is the host app.