> ## Documentation Index
> Fetch the complete documentation index at: https://grandcentral.backbase.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Unified integration for Fedwire, FedNow, and RTP payment rails via Alacriti. Includes both Alacriti payment outbound and inbound connectors.

The **Grand Central Alacriti Connector** provides a standardized bridge between your core banking applications and the Alacriti payment platform. By abstracting the complexity of US payment schemes, it lets you orchestrate real-time processing and settlement through a single integration point.

## Key capabilities

* **Multi-rail support:** Unified access to Fedwire, FedNow, and Real-Time Payments (RTP).
* **End-to-end lifecycle:** Manage everything from initiation and fee retrieval to cancellations and asynchronous status updates.
* **Compliance ready:** Transforms Grand Central Unified API payloads into rail-specific, processor-compatible instructions automatically.

***

## Supported rails and use cases

The **Alacriti payment outbound connector** supports the following operations across the primary US payment networks. The **Alacriti payment inbound connector** handles status updates received asynchronously from the network.

<Tabs>
  <Tab title="Fedwire">
    * **Standard payments:** One-time and recurring credit transfers.
    * **Lifecycle management:** Real-time modification and cancellation of pending instructions.
    * **Inquiry:** Real-time status updates and pre-computation of payment fees.
  </Tab>

  <Tab title="FedNow (Instant)">
    * **Immediate settlement:** One-time instant credit transfers through the FedNow network.
    * **Tracking:** Real-time status monitoring and automated fee retrieval.
    * **Management:** Cancellation support for transactions in a pending state.
  </Tab>

  <Tab title="RTP (The Clearing House)">
    * **Instant credit:** Seamless execution of 24/7/365 instant payments.
    * **Webhooks:** Asynchronous status notifications for immediate confirmation.
    * **Utility:** Fetch applicable fees and manage payment cancellations.
  </Tab>
</Tabs>

***

## Supported Grand Central endpoints

The Alacriti Connector implements the following methods from the **Grand Central Unified API Specification**.

| Method                                         | Endpoint                 | Description                                                                            |
| :--------------------------------------------- | :----------------------- | :------------------------------------------------------------------------------------- |
| <span className="http-method-post">POST</span> | `/payments`              | Initiates a payment. Transforms GC payloads into rail-specific processor instructions. |
| <span className="http-method-put">PUT</span>   | `/payments`              | Modifies an existing payment instruction.                                              |
| <span className="http-method-post">POST</span> | `/payments/{ref}/cancel` | Cancels a pending payment instruction within the processor.                            |
| <span className="http-method-post">POST</span> | `/fetch-bank-details`    | Resolves bank names and addresses from clearing codes.                                 |
| <span className="http-method-post">POST</span> | `/fetch-fees`            | Calculates applicable transaction fees prior to execution.                             |
| <span className="http-method-post">POST</span> | `/webhooks/statusupdate` | Receives asynchronous status push notifications from the network.                      |

<Info>
  To receive asynchronous updates such as payment success or network rejection, ensure your callback URL is registered in the Alacriti Portal and that your firewall allows traffic from Alacriti's IP ranges.
</Info>

<Note>
  For a complete list of Grand Central error codes and vendor mappings, see [Error codes](/connectors/reference/error-codes).
</Note>