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 are powerful — but they weren’t trained on Sei’s specifics. Without context, they’ll give you generic Ethereum answers: wrong gas patterns, missing dual-address handling, outdated package names, and assumptions about finality that don’t hold on a 400ms chain.

Sei provides two complementary tools to fix this.

Two tools, two roles

sei-skill

Knowledge injection. Teaches your AI assistant everything about Sei — architecture, precompiles, wallet patterns, gas behavior, and ecosystem — so every answer it gives is Sei-specific from the start.

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.

Use them together: sei-skill makes your assistant think in Sei, the MCP Server lets it act on Sei. To give your assistant just one area of Sei, such as contracts or bridges, install a focused skill from the skills registry.

Build AI agents on Sei

Cambrian Agent Kit

SDK for building autonomous AI agents with DeFi integrations — staking, lending, swaps, liquidity — powered by LangChain.

Agentic Wallets

Wallet infrastructure designed for AI agents: programmable signing, session keys, and policy controls.

x402 Payments

HTTP-native micropayments so agents can pay per-inference for LLM APIs, data feeds, and other monetized services.