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

# Quickstart

This page gets you set up quickly as a merchant (server) or a buyer (client).

Choose your language and framework below to get started.

<Note>Scroll to the end to see all supported blockchain networks.</Note>

## Servers (Merchants)

<Tabs>
  <Tab title="TypeScript">
    <CardGroup>
      <Card title="Express" href="/x402/servers/typescript/express" icon="server">
        Quickstart for building an x402-enabled server with Express.
      </Card>

      <Card title="Hono" href="/x402/servers/typescript/hono" icon="server">
        Quickstart for building an x402-enabled server with Hono.
      </Card>

      <Card title="NextJS (coming soon)" href="/x402/servers/typescript/nextjs" icon="server">
        NextJS server quickstart is coming soon.
      </Card>
    </CardGroup>
  </Tab>

  <Tab title="Python">
    <CardGroup>
      <Card title="FastAPI" href="/x402/servers/python/fastapi" icon="server">
        Quickstart for building an x402-enabled server with FastAPI.
      </Card>

      <Card title="Flask" href="/x402/servers/python/flask" icon="server">
        Quickstart for building an x402-enabled server with Flask.
      </Card>
    </CardGroup>
  </Tab>
</Tabs>

## Clients (Buyers)

<Tabs>
  <Tab title="TypeScript">
    <CardGroup>
      <Card title="Axios" href="/x402/clients/typescript/axios" icon="code">
        Quickstart for building an x402 client with Axios.
      </Card>

      <Card title="Fetch" href="/x402/clients/typescript/fetch" icon="code">
        Quickstart for building an x402 client with Fetch.
      </Card>
    </CardGroup>
  </Tab>

  <Tab title="Python">
    <CardGroup>
      <Card title="httpx" href="/x402/clients/python/httpx" icon="code">
        Quickstart for building an x402 client with httpx.
      </Card>

      <Card title="requests" href="/x402/clients/python/requests" icon="code">
        Quickstart for building an x402 client with requests.
      </Card>
    </CardGroup>
  </Tab>
</Tabs>

## Facilitator

The PalPaxAI facilitator URL is [https://facilitator.PalPaxAI.network](https://facilitator.PalPaxAI.network).

Simply set the facilitator URL in your server configuration and you're good to go.

The PalPaxAI facilitator supports the following endpoints:

* `/verify`
* `/settle`
* `/list`

Read the [reference](/x402/reference#7-1-post-%2Fverify) for more information on the facilitator endpoints and responses.

## Supported networks

The PalPaxAI facilitator supports x402 on the following networks:

| Network Name   | Network String   |
| -------------- | ---------------- |
| Avalanche      | `avalanche`      |
| Avalanche Fuji | `avalanche-fuji` |
| Base           | `base`           |
| Base Sepolia   | `base-sepolia`   |
| IoTeX          | `iotex`          |
| Peaq           | `peaq`           |
| Polygon        | `polygon`        |
| Polygon Amoy   | `polygon-amoy`   |
| Sei            | `sei`            |
| Sei Testnet    | `sei-testnet`    |
| Solana         | `solana`         |
| Solana Devnet  | `solana-devnet`  |

## Need help?