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

# Prism — Payment Gateway for AI Agents

> Prism is a payment gateway for AI-agent commerce — implement x402, UCP, and ACP with one integration and settle on-chain in stablecoins.

Prism is a payment gateway for AI-agent commerce: it lets your server accept payments from AI agents and settle them on-chain in stablecoins. A single integration implements the protocols a buyer's agent uses to pay — x402, UCP, and ACP — so you don't write protocol-specific code or touch a smart contract.

When an agent checks out or requests a paid resource, Prism returns the payment requirements (amount, token, chain); the agent's wallet signs an [ERC-3009](https://eips.ethereum.org/EIPS/eip-3009) authorization; and Prism's [Spectrum](/prism/architecture/overview) layer settles the stablecoin transfer on-chain — instant finality, zero chargebacks. Settlement runs on EVM chains (Base, Arbitrum, BSC, Ethereum) in the tokens you enable (FDUSD, USDC).

Integrate through the [Gateway API](/prism/api-reference/introduction), the server-side [SDKs](/prism/sdk/overview) (TypeScript, Python, Java), the [MCP server](/prism/integrations/mcp-server), or a [ready-made plugin](/prism/platforms) if you run Saleor, Medusa, Shopware, PrestaShop, or WooCommerce.

## Why agentic commerce needs a settlement layer

Protocols like x402, UCP, and ACP standardize the **commerce flow** — how an agent discovers products, builds a cart, and checks out. They stop short of **settlement**. That's the gap Prism fills: the layer that moves money from the agent's wallet to your account, verified and final on-chain. You keep your existing commerce stack; Prism handles the payment.

## Where to go next

<CardGroup cols={2}>
  <Card title="Quick Start" icon="rocket" href="/prism/quickstart">
    Accept your first AI-agent payment in minutes
  </Card>

  <Card title="E-commerce Platforms" icon="store" href="/prism/platforms">
    Ready-made plugins for Saleor, Medusa, Shopware, PrestaShop, and WooCommerce
  </Card>

  <Card title="Architecture" icon="diagram-project" href="/prism/architecture/overview">
    The orchestration + Spectrum settlement layers, and how each protocol is implemented
  </Card>

  <Card title="SDKs" icon="code" href="/prism/sdk/overview">
    Server-side SDKs for TypeScript, Python, and Java
  </Card>

  <Card title="API Reference" icon="square-terminal" href="/prism/api-reference/introduction">
    Prism Gateway REST API documentation
  </Card>

  <Card title="MCP Server" icon="robot" href="/prism/integrations/mcp-server">
    Manage your Prism integration from any AI agent via MCP
  </Card>
</CardGroup>