# Agent Search Evidence

> Agent Search Evidence is a paid API for AI agents from 6xrkjcfa3yrzvefcpvanurzou4.srv.us, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Aggregates multi-source search evidence from Wikipedia, OpenLibrary, and Hacker News to show how many independent sources corroborate a query

## Facts

- Endpoint: GET https://6xrkjcfa3yrzvefcpvanurzou4.srv.us/api/agent-search-evidence?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-search-evidence-1d2c9b0d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cRpNsfX6ldqf9Aq3_AiqT

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 agent-search-evidence-1d2c9b0d
```

Example prompt: Before I go any further, search across Wikipedia, OpenLibrary, and Hacker News for 'transformer architecture neural networks' and tell me how many independent sources actually cover it and what they say.

## When to prefer this

Choose this endpoint when an agent needs to verify a claim or topic against multiple independent open knowledge sources before making a decision or spending further resources. It is keyless and requires no signup, making it frictionless for autonomous agents. Prefer it over single-source lookup when cross-source agreement matters, or when you need a quick credibility signal from encyclopedic, book, and community sources simultaneously.

## Known failure modes

- Empty query string returns an error or sample response
- Upstream source API (Wikipedia/OpenLibrary/Hacker News) downtime reduces available sources
- Very obscure queries may return zero hits across all sources
- Payment not fulfilled (x402) results in 402 response blocking the evidence card
- Overly broad queries return too many low-relevance snippets

## How this service works

Paid multi-source search evidence card (cycle 218, x402 $0.01) - GET ?query=<TERMS> OR ?sample=1|2|3 OR POST application/json {query}. KEYLESS Wikipedia search API + OpenLibrary search API + Hacker News Algolia API -- no key, no account, no signup. Answers THE QUESTION A BUYER AGENT ALWAYS ASKS BEFORE SPENDING A TOKEN: what the published sources actually show about this, and how many INDEPENDENT sources agree. Returns per-source hit counts, the matched titles/snippets, cross-source AGREEMENT...

## Output

Returns a structured evidence card containing per-source hit counts from Wikipedia, OpenLibrary, and Hacker News; matched document titles and text snippets; and a cross-source agreement indicator showing how many independent sources corroborate the query terms.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-search-evidence-1d2c9b0d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 6xrkjcfa3yrzvefcpvanurzou4.srv.us](https://www.zero.xyz/host/6xrkjcfa3yrzvefcpvanurzou4.srv.us/llms.txt)