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SignalHarness Multichain Address Profile
x402
SignalHarness Multichain Address Profile is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).
Generates a comprehensive cross-chain profile for a blockchain address, aggregating on-chain data across multiple networks.
Price / call$0.01
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object containing a multichain_address_profile field with aggregated cross-chain data for the requested address, a status indicating success, any warnings about data quality or limitations, an evidence_scope label indicating the data source, and a full execution receipt including payment ID, latency, network details, and a SHA-256 result hash for verification.
Example use cases
DeFi wallet due diligence
“I need a full multichain profile on this wallet 0xAbCd1234...5678 before I decide whether to interact with it — show me what chains it's active on and any warnings.”
Cross-chain portfolio audit
“Can you build a cross-chain address profile for my wallet 0x1a2b3c4d... so I can see everywhere I have on-chain activity across different blockchains?”
Compliance screening of counterparty address
“Run a multichain profile on this address 0xdeadbeef...cafe — I'm doing compliance checks and need to understand its full on-chain footprint before we proceed.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/multichain_address_profile/invokeWhen to prefer
Choose this endpoint when you need a unified, cross-chain view of a single blockchain address rather than querying individual chain explorers. It is especially valuable for compliance screening, wallet due diligence, and portfolio audits where activity spans multiple networks. Prefer it over single-chain block explorers when the address type is unknown or when the user needs a quick aggregated summary rather than deep single-chain transaction history.
Side effects
- Invalid or malformed address string returns an error or empty profile
- Unsupported chain or address format may return warnings rather than hard errors
- Payment failure via x402 protocol results in 402 response before execution
- Rate limiting or upstream data provider outages may cause timeouts
- Very new or inactive addresses may return minimal profile data with warnings
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| multichain_profile_request | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Profile uses supplied records only and is not a balance or activity lookup."
],
"service_id": "multichain_address_profile",
"evidence_scope": "caller_supplied_data",
"multichain_address_profile": "{\"invalid\":0,\"records\":[{\"index\":0,\"kind\":\"evm\",\"normalized\":\"0x0000000000000000000000000000000000000001\",\"valid\":true},{\"index\":1,\"kind\":\"solana\",\"normalized\":\"11111111111111111111111111111111\",\"valid\":true}],\"total\":2,\"valid\":2}"
},
"status": "succeeded",
"receipt": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"usage": [],
"status": "succeeded",
"network": "eip155:8453",
"artifacts": [],
"endedAtMs": 0,
"latencyMs": 0,
"paymentId": "example-payment",
"receiptId": "example-receipt",
"requestId": "example-request",
"serviceId": "multichain_address_profile",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "10000",
"resultSha256": "59f29efce5d850b37b03e2f0f43ad4efd8ca84c4afde5084b873f0464a525a29",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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