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

# LauncX API

> LauncX V3 API for integrators — payments, disbursements, and bank payouts.

## Overview

The LauncX V3 API lets integrators create payments, run disbursements, and resolve bank payout destinations. This site documents the integrator-facing **B2B API** (`/api/v1` and `/api/v3`).

LauncX V3 is backward compatible with LauncX V2 — existing integrations continue to work with minimal changes. See the [Migration Guide](/migration) if you are coming from V2.

<CardGroup cols={2}>
  <Card title="Prerequisites" icon="list-check" href="/prerequisites">
    Provision your account, whitelist IPs, register your webhook, and copy your API key.
  </Card>

  <Card title="Authentication" icon="key" href="/authentication">
    Sign every request with the `x-api-key` and `x-timestamp` headers.
  </Card>

  <Card title="Payments" icon="credit-card" href="/payments">
    Create and retrieve payments, and receive payment webhooks.
  </Card>

  <Card title="Disbursements" icon="money-bill-transfer" href="/disbursements">
    Quote, create, and track payouts via `/api/v3/disbursements`.
  </Card>

  <Card title="API Reference" icon="terminal" href="/api-reference">
    Interactive reference for the payments, disbursements, and bank-payout endpoints.
  </Card>
</CardGroup>

## Base URLs

| Environment | Base URL                  |
| ----------- | ------------------------- |
| Production  | `https://live.launcx.com` |
| Staging     | `https://v3.launcx.com`   |

API base paths: `/api/v1` (Create Payment) and `/api/v3` (Get Payment plus the Disbursement / payout API).