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When you subscribe, you leave geometry.app on purpose. Keys and quotas come from our Zuplo Developer Portal. Card checkout, invoices, and cancel run on Stripe. We do not store full payment card numbers.
This is the usual pattern for a hosted API: the product site explains the plan; a payment processor takes the card; a gateway issues the key. Same hop as geometry.app/pricing.

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Checkout path

  1. Open Pricing (or follow an upgrade link after a quota 429).
  2. Upgrade / Get a Free sandbox key opens the official Zuplo Developer Portal (same URL as below). Create the portal account, pick a plan, and subscribe.
  3. Stripe Checkout collects the card. After pay, the portal shows your subscription and a raw key (zpka_…).
  4. Paste the key onto the branded MCP URL — Where your key goes. The tool URL stays https://mcp.geometry.app/mcp (never a *.zuplo.app MCP host).

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Official Developer Portal

This is the production checkout host. geometry.app/pricing Upgrade and Get a Free sandbox key open the same page. The hostname is assigned by Zuplo. It is the official portal, not a lookalike.
Open the official Developer Portal
geometry-main-bf0a4d2.zuplo.site is Zuplo’s assigned Production Developer Portal. That vendor host is expected. It is not the MCP tool URL. Do not use *.zuplo.app for tools — that was a temporary gateway host. Tools stay at https://mcp.geometry.app/mcp.
You still call tools at mcp.geometry.app. Zuplo sits in front as the gateway; Stripe never appears on the tool URL.

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After you have a key

How-to for ?key=, rotation, and cancel lives on Where your key goes. Billing card issues stay in the Stripe portal (opened from the Developer Portal).

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Lookups (not a public database)

Tool answers are hosted Postgres lookups. Builders call MCP/HTTP tools only — there is no public SQL console and no table REST API.

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Plans

Same tools and fields on every tier. You pay for volume, not features. Current prices: geometry.app/pricing.