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SignalHarness NFT Ownership Summary
x402
SignalHarness NFT Ownership Summary is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Analyzes and summarizes NFT ownership details from caller-supplied data about a wallet or collection
Price / call$0.01
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object containing an nft_ownership_summary string describing the NFT holdings, any warnings encountered during analysis, an evidence_scope field indicating the data came from caller-supplied input, a status field ('succeeded'), and a full receipt with payment ID, request ID, execution ID, network, and result hash for auditability.
Example use cases
Portfolio overview for NFT collector
“I have this data about a wallet's NFT holdings across several collections — can you summarize what they own and flag anything unusual? Here's the raw info: wallet 0x7fC3...d9A2 holds 12 Azuki tokens, 3 from CloneX, and 1 from BAYC.”
Verify NFT ownership before token-gated access
“Before I grant this user access to my token-gated Discord, can you summarize whether wallet 0xDeadBeef...1234 actually owns any tokens from the Moonbirds collection? Here's the ownership data I pulled.”
Audit NFT holdings for compliance report
“I need to document the NFT assets held by this wallet for our quarterly digital asset report — here's the raw ownership data for wallet 0x9F12...44CC across Base and Ethereum collections, please give me a structured summary.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/nft_ownership_summary/invokeWhen to prefer
Choose this endpoint when you have raw NFT ownership data (wallet info, token lists, collection details) that needs to be distilled into a human-readable summary. It is ideal for agent workflows where structured NFT data has already been fetched from a chain indexer and needs interpretation, or when you want a concise ownership narrative rather than raw on-chain data. It operates on caller-supplied data rather than fetching on-chain state itself, so pair it with a chain data source upstream.
Side effects
- Empty or malformed nft_ownership_request string returns an error or empty summary
- Input exceeding 65,536 characters is rejected
- Ambiguous or unstructured input may produce warnings in the warnings array
- Network or payment processing failure returns a non-succeeded status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| nft_ownership_request | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Summary is not a current ownership lookup."
],
"service_id": "nft_ownership_summary",
"evidence_scope": "caller_supplied_data",
"nft_ownership_summary": "{\"owner_count\":1,\"owners\":{\"0x0000000000000000000000000000000000000001\":[\"1\",\"2\"]},\"token_record_count\":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": "nft_ownership_summary",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "10000",
"resultSha256": "edac9af878a53b3c72486d0d7b48f999913c34624107775125814049630f8840",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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