# MM2 Empire for Business — Partner API > Take Murder Mystery 2 (MM2) items as payment, pay your users out in them, and run the integration day to day. Money is in USD cents; the API is REST over HTTPS with an `X-Partner-Key` header. This file indexes the docs; `/llms-full.txt` is the entire documentation in one file. ## Getting started - [Introduction](https://partner.mm2empire.com/en/docs/introduction): What MM2Empire for Business is, the two products it offers, and how a partner integration fits together. - [Quickstart](https://partner.mm2empire.com/en/docs/quickstart): From an approved account to a live pop-up taking your first payment, in six steps. - [Authentication & API keys](https://partner.mm2empire.com/en/docs/authentication): API keys, the header they travel in, what a key can and cannot do, and how the three credentials stay apart. - [Core concepts](https://partner.mm2empire.com/en/docs/concepts): The handful of ideas every endpoint is built on: money in cents, your balance buckets, customers, item stacks and idempotency. - [Errors, retries & limits](https://partner.mm2empire.com/en/docs/errors): The error envelope, every code the machine rails return, rate limits, and what is safe to retry. ## MM2 Payments - [How MM2 Payments works](https://partner.mm2empire.com/en/docs/payments): Your users sell you MM2 items and you are credited in USD. How the money moves, who funds it, how prices are set, and what your user sees. - [Pop-up integration](https://partner.mm2empire.com/en/docs/payments-popup): The hosted pop-up: mint a session on your server, open it with one script tag, and let us render the sell, deposit and inventory screens. - [Server-to-server API](https://partner.mm2empire.com/en/docs/payments-api): Skip the pop-up: link customers, read their inventory, quote and sell from your own server, and read everything back for reconciliation. ## MM2 Payouts - [How MM2 Payouts works](https://partner.mm2empire.com/en/docs/payouts): You pay your users out in MM2 items bought off our live marketplace. The float that pays for them, what you are charged, the limits you set, and how delivery works. - [Shop pop-up integration](https://partner.mm2empire.com/en/docs/payouts-popup): The hosted shop: one server call opens a pop-up with our catalogue at your retail price, a cart, and a claim page that names the bot to join. - [Server-to-server API](https://partner.mm2empire.com/en/docs/payouts-api): Build your own shop, cart and claim page: the catalogue at your prices, orders by stack, delivery status, and the float. ## Webhooks & notifications - [Webhooks](https://partner.mm2empire.com/en/docs/webhooks): Signed HTTPS callbacks to your server for every payment, order, payout and delivery. Set the endpoint, verify the signature, handle retries. - [Event reference](https://partner.mm2empire.com/en/docs/webhook-events): Every event type, when it fires, and the exact shape of its data payload. - [Discord notifications](https://partner.mm2empire.com/en/docs/discord-notifications): A Discord channel for the people running your site: readable messages for every payment, payout and money movement, no code required. ## Partner console - [Console guide](https://partner.mm2empire.com/en/docs/console): A tour of the partner console: what each page is for, who can change what, and where to look when something is wrong. - [Balance, top-ups & withdrawals](https://partner.mm2empire.com/en/docs/billing): How money gets into your account, where it sits, how it moves between pools, and how it comes back out. ## Reference - [Endpoint index & limits](https://partner.mm2empire.com/en/docs/api-reference): Every endpoint on the partner API in one place, with its rate limit, plus the limits and defaults the products run on.