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

# AI and agents guides

> All agent guides, concepts, and references: MCP setup, paid MCP tools, agent wallets, and agentic facilitators.

Every guide, concept, and reference under the AI/Agents tab, grouped by what you're trying to do.

## Equip an AI editor

<CardGroup cols={2}>
  <Card title="Develop with AI" icon="sparkles" href="/en/how-to/develop-with-ai">
    Install Docs MCP, Runtime MCP, agent skills, and paste the Stable context block.
  </Card>

  <Card title="Create an agent wallet" icon="key" href="/en/how-to/create-wallet">
    Self-custodied key via WDK — the foundation for agent payments.
  </Card>
</CardGroup>

## Monetise and consume services

<CardGroup cols={2}>
  <Card title="Build a pay-per-call API" icon="code" href="/en/how-to/build-pay-per-call">
    Price any HTTP endpoint per request in USDT0 with x402 middleware.
  </Card>

  <Card title="Pay with an MCP server" icon="bot" href="/en/how-to/pay-with-mcp">
    Wrap x402-paid APIs as MCP tools so an AI client calls and pays for them.
  </Card>
</CardGroup>

## Reference

<CardGroup cols={2}>
  <Card title="Agentic facilitators" icon="server" href="/en/reference/agentic-facilitators">
    Settlement services for agent-to-agent commerce on Stable.
  </Card>

  <Card title="Agent wallets" icon="wallet" href="/en/reference/agentic-wallets">
    Wallet specs for autonomous agent use.
  </Card>
</CardGroup>

## Foundation concepts

<CardGroup cols={2}>
  <Card title="x402 (HTTP-native payments)" icon="globe" href="/en/explanation/x402">
    The HTTP protocol agents use to pay per request.
  </Card>

  <Card title="ERC-3009" icon="signature" href="/en/explanation/erc-3009">
    The signed-authorization standard x402 settles through.
  </Card>
</CardGroup>