> For the complete documentation index, see [llms.txt](https://docs-v2.mugglepay.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-v2.mugglepay.com/integration/api-doc.md).

# MugglePay Payment API

MugglePay Payment API - Merchant (preconfigured wallet).

One intent API, two integration paths. Pick the one that matches how you receive funds:

|                         | Bridge & Wallet API                                     | Merchant API                                                              |
| ----------------------- | ------------------------------------------------------- | ------------------------------------------------------------------------- |
| **Who it's for**        | Wallets, bridges, apps moving funds                     | Merchants accepting payments                                              |
| **Destination address** | You pass `destination.receiverAddress` on every request | Preconfigured on your merchant `appId` — never sent per request           |
| **Auth**                | App ID                                                  | `X-API-Key` from [business.mugglepay.com](https://business.mugglepay.com) |
| **Start here**          | API Quick Start                                         | API Quick Start (Merchant)                                                |

Shared references:

* MugglePay Intents Tech Design — how the intent flow works under the hood.
* Supported Tokens and Chains — chain IDs, tokens, and routes.