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Wallet Identity Cross-Chain Lookup
x402
Wallet Identity Cross-Chain Lookup is a paid API for AI agents from x402.onchainexpat.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).
Retrieves unified wallet identity information including ENS, labels, activity, and risk data across ETH, Base, Arbitrum, Polygon, and Optimism
Price / call$0.1
Success—
StatusUnknown
How this service works
Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol
Output
A unified wallet identity profile containing ENS name resolution, known labels or tags, on-chain activity summary, and risk assessment aggregated across Ethereum mainnet, Base, Arbitrum, Polygon, and Optimism.
Example use cases
Example prompt
“Can you pull up the full cross-chain identity profile for wallet 0x742d35Cc6634C0532925a3b8D4C9C0A4f1234567 — I need ENS name, any known labels, activity summary, and risk score across ETH, Base, Arbitrum, Polygon, and Optimism?”
Technical details
Endpoint
POSThttps://x402.onchainexpat.com/api/x402-crypto/wallet-identity-crosschainWhen to prefer
Use this endpoint when you need a comprehensive, multi-chain view of a wallet's identity rather than single-chain data. Ideal when the target wallet may operate across multiple EVM-compatible L2s and you want ENS resolution, labeling, and risk scoring in one call rather than querying each chain separately.
Side effects
- Invalid or malformed wallet address returns an error
- Wallet with no activity on any supported chain returns empty or sparse results
- Rate limiting or payment failure returns a 402 or 429 error
- Unsupported chain query returns a validation error
- Timeout if cross-chain aggregation takes too long
Input
{
"address": "0x742d35Cc6634C0532925a3b8D4C9C0A4f1234567"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| addressrequired | string | Wallet address (0x + 40 hex chars) or ENS name (e.g. 'vitalik.eth') |
Output
{
"data": {
"chains": {
"base": {
"balance": {
"native": 0,
"native_usd": 0,
"native_symbol": "ETH"
},
"activity": {
"first_seen": null,
"total_transactions": 0
},
"nfts_count": 0,
"tokens_count": 0
},
"polygon": {
"balance": {
"native": 0,
"native_usd": 0,
"native_symbol": "MATIC"
},
"activity": {
"first_seen": null,
"total_transactions": 0
},
"nfts_count": 0,
"tokens_count": 0
},
"arbitrum": {
"balance": {
"native": 0,
"native_usd": 0,
"native_symbol": "ETH"
},
"activity": {
"first_seen": null,
"total_transactions": 0
},
"nfts_count": 0,
"tokens_count": 0
},
"ethereum": {
"balance": {
"native": 0,
"native_usd": 0,
"native_symbol": "ETH"
},
"activity": {
"first_seen": null,
"total_transactions": 0
},
"nfts_count": 0,
"tokens_count": 0
},
"optimism": {
"balance": {
"native": 0,
"native_usd": 0,
"native_symbol": "ETH"
},
"activity": {
"first_seen": null,
"total_transactions": 0
},
"nfts_count": 0,
"tokens_count": 0
}
},
"address": "0x742d35cc6634c0532925a3b8d4c9c0a4f1234567",
"identity": {
"ens_name": null,
"is_contract": false,
"known_label": null,
"wallet_type": "new_wallet"
},
"ai_analysis": {
"success": true,
"ai_model": "claude-sonnet-4",
"ai_provider": "claude-cli",
"wallet_profile": "unknown",
"recommendations": [],
"activity_pattern": "unknown",
"behavior_summary": "Analysis unavailable",
"notable_observations": [],
"sophistication_level": "unknown"
},
"cross_chain_summary": {
"chains_active": 0,
"total_value_usd": 0,
"wallet_age_days": 0,
"earliest_activity": null,
"total_transactions": 0
}
},
"cached": false,
"success": true,
"timestamp": "2026-06-18T05:22:25.218853+00:00"
}Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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