# SignalHarness Agent Research Trace Report

> SignalHarness Agent Research Trace Report is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-16).

Generates a structured research trace report for a given agent-supplied JSON payload, returning analysis with an audit trail and scope evidence.

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/agent_research_trace_report/invoke
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-agent-research-trace-report-84163a92
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kyPBUDcI9epgabF1tMp0x

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability signalharness-agent-research-trace-report-84163a92 -d '<json body>'
```

Example prompt: Run a research trace report on this payload and give me back the structured analysis with evidence scope: {"topic": "autonomous agent safety", "depth": "comprehensive", "sources": ["arxiv", "github"]}

## When to prefer this

Choose this endpoint when you need a pay-per-call, auditable trace report for agent-generated research JSON, especially when you require a cryptographically receipted result (resultSha256) and an evidence scope label. Prefer this over general-purpose analysis endpoints when you need the x402 micropayment receipt trail on Base USDC for compliance or billing, or when building agent workflows that must log verifiable research operations.

## Known failure modes

- Malformed or non-JSON request_json string causes validation failure
- Payload exceeds 65536 character limit returns rejection
- Payment failure on x402 channel prevents invocation
- Caller-supplied data warnings always present — output should be independently verified
- Empty or too-short request_json (minLength 2) rejected
- Network issues on Base (eip155:8453) delay settlement receipt

## How this service works

Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.

## Output

Returns a JSON object containing a 'result' field with analysis_json (structured analysis of the submitted payload), evidence_scope (indicating caller_supplied_data), service_id, and warnings. Also includes a receipt with payment metadata (paymentId, receiptId, network, amountAtomic, resultSha256, latencyMs), request/execution IDs, status ('succeeded'), and artifacts array.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "request_json": {
   "type": "string",
   "maxLength": 65536,
   "minLength": 2
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Verify the caller-supplied data before relying on this result."
   ],
   "service_id": "agent_research_trace_report",
   "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": "agent_research_trace_report",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "30000",
   "resultSha256": "06239660f3d8e0525dca525cad3b7edbc5b7c1b8812cae031a23891610fb4a55",
   "serviceVersion": "1.0.0",
   "settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
  },
  "artifacts": [],
  "requestId": "example-request",
  "executionId": "example-execution"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signalharness-agent-research-trace-report-84163a92/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalharness.ai](https://www.zero.xyz/host/signalharness.ai/llms.txt)