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Deploy smart contracts with ChatGPT.

Package 112 stars GitHub

Web3GPT

Web3GPT is an AI-powered smart contract platform for chatting with onchain agents, deploying Solidity contracts, and running agent-driven workflows on EVM chains.

The current public integration surface is agent-first:

  • browser chat UI at w3gpt.ai
  • skill endpoint at https://w3gpt.ai/api/skill
  • skill guide at https://w3gpt.ai/skill.md
  • API reference at https://w3gpt.ai/api-docs

What Changed

  • the old Unkey-backed /api/v1 endpoints are removed
  • the SDK now targets the skill/chat flow instead of separate completions/deploy APIs
  • Polygon mainnet deployment is available through the agent and skill endpoint
  • Polygon mainnet is not exposed through wallet connectors in the UI

Core Flows

  • chat with built-in or user-created Web3GPT agents
  • deploy contracts through the agent conversation
  • persist authenticated browser chats in Vercel KV
  • persist anonymous skill chats by chatId
  • verify deployments through the Vercel cron job

Supported Agent Deployment Chains

  • Polygon Mainnet
  • Polygon Amoy
  • Base Sepolia
  • Arbitrum Sepolia
  • Optimism Sepolia
  • Mantle Sepolia
  • Metis Sepolia
  • Celo Alfajores
  • Ethereum Sepolia

Getting Started

  1. Clone the repository.
  2. Copy .env.example and fill in the required variables.
  3. Install dependencies.
  4. Run the app.
bun install
bun dev

Important Environment Variables

  • OPENAI_API_KEY
  • DEPLOYER_PRIVATE_KEY
  • AUTH_GITHUB_ID
  • AUTH_GITHUB_SECRET
  • AUTH_SECRET
  • CRON_SECRET
  • KV_REST_API_URL
  • KV_REST_API_TOKEN
  • NEXT_PUBLIC_ALCHEMY_API_KEY
  • NEXT_PUBLIC_TENDERLY_API_KEY
  • NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID
  • ETHERSCAN_API_KEY
  • BLOCKSCOUT_API_KEY
  • PINATA_JWT

Skill API

Start a chat:

curl https://w3gpt.ai/api/skill

Continue a chat:

curl -X POST "https://w3gpt.ai/api/skill?chatId=your-chat-id" \
  -H "Content-Type: application/json" \
  -d '{"message":"Deploy an ERC20 on Polygon mainnet"}'

Include full history:

curl "https://w3gpt.ai/api/skill?chatId=your-chat-id&history=true"

The chatId is the secret for continuing a thread outside the browser UI.

Development Commands

  • bun dev
  • bun run build
  • bun run start
  • bun run typecheck
  • bun run lint
  • bun run format
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