web3-data
Web3 Data Explorer (Chainbase)
Query on-chain data via the Chainbase CLI.
Quick Reference
Install: npm install -g chainbase-cli (or use npx chainbase-cli)
Auth: Set API key via chainbase config set api-key YOUR_KEY, or env CHAINBASE_API_KEY. Falls back to demo key. If rate-limited, direct user to https://platform.chainbase.com to get a key.
x402 Payment: Supports pay-per-call micropayments via --x402 flag. Setup: chainbase config set private-key 0x...
# Top token holders
chainbase token top-holders 0xdAC17F958D2ee523a2206206994597C13D831ec7 --chain 1 --limit 10
# Token price
chainbase token price 0xdAC17F958D2ee523a2206206994597C13D831ec7
# ENS resolve
chainbase domain ens-resolve vitalik.eth
# SQL query
chainbase sql execute "SELECT * FROM ethereum.blocks ORDER BY number DESC LIMIT 5"
Use --json for machine-parseable output. Use --chain <id> to target a specific chain.
Chain IDs
| Chain | ID | Chain | ID |
|---|---|---|---|
| Ethereum | 1 | Optimism | 10 |
| BSC | 56 | Base | 8453 |
| Polygon | 137 | zkSync | 324 |
| Avalanche | 43114 | Arbitrum | 42161 |
Default to Ethereum (chain 1) unless user specifies otherwise.
Routing Logic
Match user intent to the right CLI command:
| User wants | CLI command |
|---|---|
| Latest block number | chainbase block latest |
| Block details | chainbase block detail <number> |
| Transaction detail | chainbase tx detail <hash> |
| Wallet transaction history | chainbase tx list <address> |
| Token info (name, symbol, supply) | chainbase token metadata <contract> |
| Token price | chainbase token price <contract> |
| Historical token price | chainbase token price-history <contract> --from <ts> --to <ts> |
| List of holder addresses | chainbase token holders <contract> |
| Top token holders / who holds a token | chainbase token top-holders <contract> |
| Token transfer history | chainbase token transfers --contract <addr> |
| Native token balance (ETH/BNB) | chainbase balance native <address> |
| ERC20 token balances of wallet | chainbase balance tokens <address> |
| DeFi portfolio positions | chainbase balance portfolios <address> |
| ENS domains held by address | chainbase domain ens <address> |
| ENS name → address | chainbase domain ens-resolve <name> |
| Address → ENS name | chainbase domain ens-reverse <address> |
| Space ID resolve (BSC) | chainbase domain spaceid-resolve <domain> |
| Space ID reverse (BSC) | chainbase domain spaceid-reverse <address> |
| Call smart contract function | chainbase contract call --address <contract> --function "fn" --abi '[...]' --params '[...]' |
| Anything not covered above | SQL API: chainbase sql execute "SELECT ..." |
Workflow
- Identify intent — Determine what data the user needs
- Resolve identifiers — If user gives token name (e.g. "USDT"), look up the contract address. Common tokens:
- USDT:
0xdAC17F958D2ee523a2206206994597C13D831ec7(ETH) - USDC:
0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48(ETH) - WETH:
0xC02aaA39b223FE8D0A0e5c4F27eAD9083C756Cc2(ETH) - DAI:
0x6B175474E89094C44Da98b954EedeAC495271d0F(ETH) - WBTC:
0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599(ETH) - If unknown, use
chainbase token metadata <contract>or ask the user for the contract address
- USDT:
- Select command — Use the routing table above; fall back to SQL API for complex/custom queries
- Execute — Run the CLI command. Add
--jsonwhen you need to parse the output programmatically - Present results — Format data clearly with tables for lists, highlight key insights
Global Options
All commands support these options:
| Option | Description | Default |
|---|---|---|
--chain <id> |
Target chain | 1 (Ethereum) |
--json |
Machine-parseable JSON output | false |
--page <n> |
Page number for paginated results | 1 |
--limit <n> |
Results per page | 20 |
--x402 |
Enable x402 micropayment mode | false |
SQL API Fallback
When CLI commands don't cover the query, translate user intent to SQL:
chainbase sql execute "SELECT from_address, SUM(value) as total FROM ethereum.token_transfers WHERE contract_address = '0x...' GROUP BY from_address ORDER BY total DESC LIMIT 20"
Common table patterns (replace ethereum with chain name):
{chain}.blocks— Block data{chain}.transactions— Transactions{chain}.token_transfers— ERC20 transfers{chain}.token_metas— Token metadata{chain}.logs— Event logs
SQL constraints: max 100,000 results per query.
For full command help, run chainbase --help or chainbase <command> --help.