# Straelo Relay Search Evidence

> Straelo Relay Search Evidence is a paid API for AI agents from relay.straelo.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-11).

Searches for evidence and facts on a given query, returning structured results with sources, conflicts, agreements, and a confidence score

## Facts

- Endpoint: POST https://relay.straelo.com/search-evidence?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/straelo-relay-search-evidence-e19750d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zYVRQEXeX5GRChT3eIAXl

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 straelo-relay-search-evidence-e19750d4 -d '<json body>'
```

Example prompt: Search for evidence on 'What are the health effects of microplastics in drinking water?' and give me the key facts, sources, any conflicting findings, and how confident the results are.

## When to prefer this

Choose this endpoint when you need structured, sourced evidence with explicit conflict and agreement detection and a machine-readable confidence score — rather than a raw web search or unstructured document retrieval. It is especially useful for fact-checking, research synthesis, or pre-publication verification where knowing the reliability and consensus of evidence matters as much as the facts themselves.

## Known failure modes

- Empty facts array returned if no evidence found for the query
- Low confidence score (near 0) when evidence is sparse or contradictory
- Payment failure if USDC balance is insufficient for the $0.03 per-call fee
- Query too short or empty triggers validation error (minLength:1 required)
- Sources array may be empty for highly niche or novel topics with no indexed evidence
- Conflicts array may surface when sources fundamentally disagree, requiring human judgment

## How this service works

Search multiple live web sources and return structured factual claims with supporting evidence and source URLs.

## Output

A JSON object containing an array of facts, an array of sources with citations, an array of conflicts between sources, an array of agreements across sources, a confidence score (0–1) indicating overall evidence reliability, usage metrics, and economics data about the query.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "minLength": 1,
   "description": "Question or factual query to support with live web evidence."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "facts": [],
  "query": "What is x402?",
  "usage": {},
  "sources": [],
  "conflicts": [],
  "economics": {},
  "agreements": [],
  "confidence": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/straelo-relay-search-evidence-e19750d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from relay.straelo.com](https://www.zero.xyz/host/relay.straelo.com/llms.txt)