# Apidoor

> Apidoor is an API gateway for developers, indie hackers, and small teams that sell or expose an existing API.

Each project connects one public HTTPS upstream API. Apidoor provides customer API keys, per-key monthly request limits, account-wide plan allowances, automatic request forwarding, key lifecycle controls, retained usage analytics, CSV exports, alerts, and plan-based delivery controls.

## Product

- [Apidoor](https://apidoor.io/): Product overview, V1 features, and plan comparison.
- [API subscriptions](https://apidoor.io/api-subscriptions): Sell subscriptions to an existing API, with customer billing, API keys, and request limits on Starter or Pro. Eligible US sellers and US customers, in USD.
- [Create an account](https://app.apidoor.io/sign-up): Start on the Free plan without payment details.
- [Sign in](https://app.apidoor.io/sign-in): Open the seller dashboard.
- [Apidoor documentation](https://docs.apidoor.io/): Seller setup, gateway operation, limits, access controls, and troubleshooting.
- [Terms and Conditions](https://apidoor.io/terms): Terms governing Apidoor accounts, subscriptions, seller responsibilities, gateway use, and service limits.

## Guides

- [Quickstart](https://docs.apidoor.io/docs/quickstart.md): Connect an upstream API, create a customer and API key, and send a first request through Apidoor.
- [Plans and billing](https://docs.apidoor.io/docs/plans-and-billing.md): Compare account limits, retained usage history, and plan features.
- [API keys](https://docs.apidoor.io/docs/api-keys.md): Create customer API keys, control their status, and manage monthly request limits.
- [Request limits](https://docs.apidoor.io/docs/request-limits.md): Understand account-wide and per-key UTC calendar-month enforcement.
- [Access controls](https://docs.apidoor.io/docs/access-controls.md): Configure browser origins, webhooks, route rules, access labels, and custom domains.
- [Usage analytics](https://docs.apidoor.io/docs/usage.md): Read retained request history, filter activity, and export CSV data.

## Optional

- [LLM documentation index](https://docs.apidoor.io/llms.txt): Index of all machine-readable Apidoor guides.
- [Complete documentation](https://docs.apidoor.io/llms-full.txt): The complete Apidoor seller documentation in one text file.