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d21 Wallet Profile
x402
d21 Wallet Profile is a paid API for AI agents from draconic21-x402-api.onrender.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-12).
Profiles a Base (EVM) wallet or contract address with on-chain activity, token balances, counterparties, known labels, and an OFAC SDN sanctions check in a single call.
Price / call$0.03
Success—
StatusUnknown
How this service works
Wallet Profile ($0.03 — below the category-leading "wallet-intelligence" comparable WalletGuard's $0.05): profiles a Base wallet/contract address in one call — is-contract, first/last on-chain activity, outgoing tx count, native ETH + tracked ERC-20 balances (USDC/WETH/cbBTC/DAI), recent counterparties, known-label hits, a real working OFAC SDN sanctioned-address check (WalletGuard's own live sample ships this non-functional), and a concise risk summary. Fetched live from Base's public RPC +…
Output
Returns a structured profile including: whether the address is a contract, first and last on-chain activity timestamps, outgoing transaction count, native ETH balance, ERC-20 token balances (USDC, WETH, cbBTC, DAI), a list of recent counterparty addresses, any known labels or tags for the address, a live OFAC SDN sanctions check result, and a concise risk summary.
Example use cases
Pre-payment sanctions check
“Before I send funds, can you check if 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 is on the OFAC SDN list and give me a quick risk summary for that Base address?”
DeFi counterparty due diligence
“I'm about to interact with a new DeFi protocol at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Base — can you tell me if it's a smart contract, how long it's been active, and what its recent counterparties look like?”
Portfolio balance snapshot
“What are the current ETH, USDC, WETH, cbBTC, and DAI balances for my Base wallet 0x4200000000000000000000000000000000000006, and how many outgoing transactions has it made?”
Technical details
Endpoint
POSThttps://draconic21-x402-api.onrender.com/v1/wallet_profile?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive one-call wallet intelligence report on a Base network address — especially when OFAC sanctions screening is required alongside on-chain metrics. Prefer it over raw RPC calls when you want token balances, counterparty history, known labels, and risk summary aggregated in a single response at $0.03 per call, which is below comparable wallet intelligence services.
Side effects
- Invalid address format (not a valid 0x EVM address) — returns validation error
- Address has no on-chain activity on Base — returns empty/minimal profile
- OFAC SDN lookup timeout or unavailability — sanctions field may be null or error
- Base RPC node downtime causing failed data fetch
- Payment failure via x402 protocol — request not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | Base (EVM) address to profile, e.g. 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
Tags
x402
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