Blockchain analytics and DeFi intelligence via Einstein's x402 micropayment services. Use when user wants on-chain market analysis, token research, whale tracking, smart money tracking, rug pull scanning, launchpad monitoring (Pump.fun, Zora, Virtuals), portfolio analysis, MEV detection, cross-chain arbitrage, or Polymarket data. Supports Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, zkSync, Solana. Costs $0.25-$1.15 USDC per query via x402 protocol on Base.
Einstein provides 27 blockchain analytics services accessible via x402 micropayments (USDC on Base). Each query costs $0.25–$1.15 depending on complexity.
```bash
node scripts/einstein-setup.mjs
node scripts/einstein.mjs services
node scripts/einstein.mjs top-movers --chain base --limit 10
```
**Requirements:**
| Tier | Price (Raw) | Price (+AI) | Services |
|------|-------------|-------------|----------|
| Basic | $0.25 | $0.40 | Latest tokens, token chart |
| Standard | $0.40 | $0.55 | Top movers, top tokens, OHLCV, Virtuals, wallet holdings, holder concentration |
| Platform | $0.60 | $0.75 | Zora launches/volume, Pump.fun launches/volume/graduation, BSC alpha, liquidity shifts |
| Advanced | $0.85 | $1.00 | Whale intel, smart money, top traders, DEX capital, token sniping, Polymarket events |
| Comprehensive | $1.00 | $1.15 | Investment report, NFT analytics, MEV detection, arbitrage scanner, rug pull scanner, Polymarket compare |
**Raw** = structured data only. **+AI** = includes AI-generated analysis and insights (default).
```bash
node scripts/einstein.mjs top-movers --chain base --timeperiod 1d --limit 10
node scripts/einstein.mjs top-tokens --chain ethereum --limit 20
node scripts/einstein.mjs latest-tokens --chain base --limit 15
```
```bash
node scripts/einstein.mjs whale-intel --chain ethereum --limit 10 --timeperiod 7d
node scripts/einstein.mjs smart-money --chain base --limit 20 --timeperiod 7d
node scripts/einstein.mjs dex-capital --chain base --limit 10 --timeperiod 3d
```
```bash
node scripts/einstein.mjs rug-scan --chain ethereum --token 0x1234...abcd
node scripts/einstein.mjs mev-detect --chain ethereum --limit 10 --timeperiod 1d
node scripts/einstein.mjs token-snipe --chain base --token 0x1234...abcd --limit 20
```
```bash
node scripts/einstein.mjs pump-launches --limit 15 --timeperiod 1d
node scripts/einstein.mjs pump-grads --limit 10
node scripts/einstein.mjs zora-launches --limit 10 --timeperiod 3d
node scripts/einstein.mjs virtuals --limit 10 --timeperiod 7d
```
```bash
node scripts/einstein.mjs wallet --chain ethereum --wallet 0xd8dA...
node scripts/einstein.mjs holders --chain base --token 0x1234... --limit 50
node scripts/einstein.mjs chart --chain base --token 0x1234... --timeperiod 7d
node scripts/einstein.mjs ohlcv --chain base --token 0x1234... --timeperiod 30d
```
```bash
node scripts/einstein.mjs investment-report --chains base,ethereum,bsc --limit 10 --timeperiod 7d
node scripts/einstein.mjs arbitrage --chain ethereum --limit 10 --timeperiod 1d
node scripts/einstein.mjs nft-analytics --chain ethereum --limit 10 --timeperiod 7d
```
```bash
node scripts/einstein.mjs polymarket --limit 10 --timeperiod 7d
node scripts/einstein.mjs polymarket-compare --limit 10
```
Einstein uses the **x402 protocol** — an HTTP-native micropayment standard. Payment is automatic:
1. Your request hits Einstein's endpoint
2. Server responds with HTTP 402 + payment challenge
3. The skill signs a USDC TransferWithAuthorization (EIP-3009) using your private key
4. Request is re-sent with the payment signature
5. Coinbase CDP facilitator settles the USDC transfer on Base
6. You receive the analytics data
**No accounts, no API keys, no subscriptions.** Just USDC on Base and a private key.
| Flag | Description | Default |
|------|-------------|---------|
| `--chain <chain>` | Blockchain network | `base` |
| `--limit <N>` | Number of results (1-500) | `10` |
| `--timeperiod <period>` | Time window: 1d, 3d, 7d, 30d | `7d` |
| `--token <address>` | Token contract address | — |
| `--wallet <address>` | Wallet address | — |
| `--chains <c1,c2>` | Comma-separated chains | — |
| `--raw` | Data-only response (cheaper) | `false` |
**Supported chains:** base, ethereum, bsc, solana, arbitrum, polygon, optimism, zksync
**"No private key configured"**
Run `node scripts/einstein-setup.mjs` or set `EINSTEIN_X402_PRIVATE_KEY`.
**"Payment rejected" / "Insufficient balance"**
Your wallet needs USDC on Base. Bridge via https://bridge.base.org.
**"Cannot reach emc2ai.io"**
Check internet connection. The service may have temporary downtime.
**"Unknown service"**
Run `node scripts/einstein.mjs services` to see all available commands.
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