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Base Wallet Activity Scorer
x402
Base Wallet Activity Scorer is a paid API for AI agents from base-intel-api.jakemaxsigal.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Returns a 0-100 activity score for a Base wallet address, including smart wallet detection, ETH/USDC balances, and recent USDC flow analysis.
Price / call$0.005
Success—
StatusUnknown
How this service works
Base wallet score API / wallet reputation / address risk scoring / onchain wallet intelligence / counterparty check. Returns a 0-100 activity score with letter grade, smart-wallet (ERC-4337) detection, ETH and USDC balances, recent USDC flow, and a user profile for any Base address. For AI agents, fraud screening, and KYC/counterparty checks.
Output
Returns a 0-100 activity score for the queried wallet, a boolean smart wallet flag, current ETH and USDC balances, a summary of recent USDC inflow/outflow, and a basic user profile.
Example use cases
Example prompt
“What's the activity score for Base wallet 0x1234...abcd — is it a smart wallet, and how much USDC has it moved recently?”
Technical details
Endpoint
POSThttps://base-intel-api.jakemaxsigal.workers.dev/wallet/scoreWhen to prefer
Use this endpoint when you need a quick, pre-computed activity signal for a specific Base wallet — especially when you want smart wallet detection and USDC flow context in a single call rather than querying raw blockchain data yourself.
Side effects
- Invalid or malformed wallet address returns a 400 error
- Wallet has no on-chain history resulting in a score of 0 with empty balance fields
- Rate limiting or payment failure (402) if USDC payment is not included or insufficient
- Network timeout if Base RPC is congested
Input
{
"limit": 10,
"address": "0x1234567890123456789012345678901234567890"
}Output
{
"grade": "D",
"score": 10,
"address": "0x1234567890123456789012345678901234567890",
"profile": "new_or_inactive",
"breakdown": {
"txCount": 0,
"ethBalance": 0.2677,
"walletType": "eoa",
"usdcBalance": 92.45,
"balanceScore": 8,
"usdcActivity": {
"sentCount": 0,
"sentTotalUsd": 0,
"receivedCount": 0,
"receivedTotalUsd": 0
},
"activityScore": 0,
"ethBalanceUsd": 803.08,
"usdcFlowScore": 0,
"smartWalletScore": 0,
"usdcBalanceScore": 2,
"usdcActivityScore": 0
},
"timestamp": "2026-06-18T05:25:23.162Z",
"methodology": "Scoring (max 100): activity(25) + smart_wallet(20) + ETH_balance(15) + USDC_balance(10) + USDC_activity(20) + USDC_flow(10)",
"isSmartWallet": false,
"walletAgeApprox": "new"
}Tags
x402
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Zero review prompt (fires after every successful call)
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