> For the complete documentation index, see [llms.txt](https://docs.nexusglobalpayments.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nexusglobalpayments.org/payment-setup/key-points.md).

# Key Points

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This section describes how the **Source PSP should set up and send a Nexus payment**, using the Nexus APIs.

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A simpler, non-technical walkthrough of the user journey for the Sender is given in the [Nexus report (page 22)](https://www.nexusglobalpayments.org/wp-content/uploads/2025/03/Project-Nexus-Report-Phase-3.pdf). 

Further information on each step is given in the corresponding sections in the left-hand menu:

* [Addressing and Proxy Resolution](/addressing-and-proxy-resolution/key-points.md)
* [FX Provision](/fx-provision/key-points.md)
* [Payment Processing](/payment-processing/key-points.md)
* [Settlement Access Provision](/settlement-access-provision/key-points.md)
* [Messaging & Translation](/messaging-and-translation/key-points.md)
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