> ## Documentation Index
> Fetch the complete documentation index at: https://seilabs-docs-evm-cookbook.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Build on Sei with AI

> AI tools for building on Sei — from knowledge injection that makes your AI assistant Sei-aware, to live blockchain tooling that lets it act on-chain.

AI coding assistants were not trained on the specifics of Sei. Without context, they give you generic Ethereum answers. These answers get gas patterns wrong, miss dual-address handling, and use outdated package names. They also make assumptions about finality that do not hold on a 400ms chain.

Sei has two complementary tools to fix this.

## Two tools, two roles

<CardGroup cols={2}>
  <Card title="sei-skill" icon="brain" href="/ai/sei-skill">
    **Knowledge injection.** Teaches your AI assistant everything about Sei: architecture, precompiles, wallet patterns, gas behavior, and the ecosystem. As a result, every answer it gives is Sei-specific from the start.
  </Card>

  <Card title="MCP Server" icon="plug" href="/ai/mcp-server">
    **Live blockchain access.** Gives your AI assistant tools to read and write on-chain: query balances, send transactions, interact with contracts, and monitor network state in real time.
  </Card>
</CardGroup>

Use them together: sei-skill gives your assistant knowledge of Sei, and the MCP Server lets it act on Sei. For a single area of Sei, such as contracts or bridges, install a focused skill from the [skills registry](/ai/skills).

## Build AI agents on Sei

<CardGroup cols={3}>
  <Card title="Cambrian Agent Kit" icon="robot" href="/ai/cambrian-agent-kit">
    LangChain-based SDK for building autonomous AI agents with DeFi integrations for staking, lending, swaps, and liquidity.
  </Card>

  <Card title="Agentic wallets" icon="wallet" href="/ai/agentic-wallets">
    Wallet infrastructure designed for AI agents: programmable signing, session keys, and policy controls.
  </Card>

  <Card title="x402 payments" icon="credit-card" href="/ai/x402">
    HTTP-native micropayments that let agents pay per inference for LLM APIs, data feeds, and other monetized services.
  </Card>
</CardGroup>


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