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SignalHarness Search Query Term Extractor
x402
SignalHarness Search Query Term Extractor is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Extracts structured search query terms from a caller-supplied JSON request, returning parsed analysis for use in search or discovery workflows.
Price / call$0.005
Success—
StatusUnknown
How this service works
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Output
Returns a JSON object containing extracted query terms and analysis in an `analysis_json` field, a `service_id`, status, optional warnings (e.g. to verify caller-supplied data), and a signed receipt with payment metadata including amount, network, and result hash for auditability.
Example use cases
Search keyword extraction for e-commerce
“Pull out the structured search terms from this product query so I can feed them into our catalog search: 'lightweight waterproof hiking boots for wide feet mens size 11'.”
Agent search intent decomposition
“Break down this user search request into individual query terms I can use to query multiple APIs: 'cheap flights from NYC to Tokyo in late March with one stop'.”
Query normalization for analytics pipeline
“Extract the meaningful search terms from this raw query string and give me a structured analysis I can log: 'top rated italian restaurants open late near downtown Chicago'.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/search_query_term_extract/invokeWhen to prefer
Choose this endpoint when you need to extract and structure search query terms from a raw or unstructured JSON payload as part of an agent workflow, particularly when operating in a pay-per-call x402 USDC environment on Base. It is well-suited for pipelines where query decomposition is a discrete, billable step before passing terms to a downstream search or retrieval system.
Side effects
- Malformed or empty `request_json` string returns a validation error
- Input JSON exceeding 65,536 characters is rejected
- Caller-supplied data that cannot be parsed as valid JSON may produce warnings or failed extraction
- Network or payment processing failures return a non-succeeded status in the receipt
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| request_json | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Verify the caller-supplied data before relying on this result."
],
"service_id": "search_query_term_extract",
"analysis_json": "{\"example\":\"schema-valid caller-supplied data\"}",
"evidence_scope": "caller_supplied_data"
},
"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": "search_query_term_extract",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "5000",
"resultSha256": "a76a6527f8842591c73b9b021bd0c4303487e20e4f3cad2afd684a3476d9fe41",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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