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SignalHarness Search Result Recency Rank
x402
SignalHarness Search Result Recency Rank 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).
Ranks search results by recency, analyzing caller-supplied result data to order items from most to least recent.
Price / call$0.01
Success—
StatusUnknown
How this service works
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Output
Returns a JSON analysis object containing the recency-ranked search results, a service_id confirming the operation, any warnings about caller-supplied data reliability, and a detailed receipt with payment confirmation, execution metadata, latency, and a SHA256 result hash for verification.
Example use cases
Fresh news surface for research agent
“I pulled 20 search results on quantum computing breakthroughs — can you rank them by how recent they are so I'm reading the freshest articles first?”
Dedup stale results from SERP pipeline
“Here are the search results my pipeline collected for 'AI regulation 2024' — please rank them by recency and flag anything that looks outdated so I can drop it from my report.”
Trend monitoring freshness check
“I have a batch of search snippets about EV battery technology — sort them newest to oldest so I can track what's changed most recently in the space.”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/search_result_recency_rank/invokeWhen to prefer
Choose this endpoint when you have a set of search results and need to programmatically re-order them by recency rather than relevance or other signals. It is particularly useful in agent pipelines that aggregate results from multiple sources and need a fast, pay-per-call recency normalization step without standing up your own ranking infrastructure. Best suited for single-call, low-latency ranking needs at $0.01 USDC per invocation.
Side effects
- Invalid or malformed request_json input returns a schema validation error
- request_json exceeds 65536 character limit causing rejection
- Missing required request_json field returns a 400-level error
- Caller-supplied data that cannot be parsed for recency signals may produce unreliable rankings with warnings
- Payment failure on x402 protocol results in 402 response and no execution
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_result_recency_rank",
"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_result_recency_rank",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "10000",
"resultSha256": "b856bd8ec6fa4ccb5f7ee6d736a0a1198d13f91db4c5272ac3b4313c7af39044",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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