# GENESIS Agent Tools — URL Evidence Analysis (research-evidence)

> GENESIS Agent Tools — URL Evidence Analysis (research-evidence) is a paid API for AI agents from genesis-agent-tools.genesisagenttools.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Analyzes one or more URLs to extract and evaluate evidence relevant to research questions, returning structured evidence findings and warnings at quick or deep analysis tiers.

## Facts

- Endpoint: POST https://genesis-agent-tools.genesisagenttools.workers.dev/api/flagships/research-evidence?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/genesis-agent-tools-url-evidence-analysis-research-evidence-36fcda92
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ruP0G7hBldNelj7NH57UL

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 genesis-agent-tools-url-evidence-analysis-research-evidence-36fcda92 -d '<json body>'
```

Example prompt: Can you do a deep evidence analysis on these three URLs — https://example.com/study1, https://example.com/report2, https://example.com/data3 — and tell me what research evidence they contain and any warnings?

## When to prefer this

Choose this endpoint when you need to systematically extract and evaluate evidence from specific web URLs for research, fact-checking, or claim validation purposes — particularly in agentic workflows where autonomous evidence gathering is needed. It is especially useful when you have a concrete list of URLs and want structured, machine-readable evidence output with warnings. Prefer the 'quick' tier for fast validation passes and 'deep' tier for thorough research workflows.

## Known failure modes

- Invalid or unreachable URLs return empty evidence arrays or warnings
- Paywalled or bot-blocked URLs may yield no extractable evidence
- Missing required 'urls' array causes validation error
- Invalid tier enum value (not 'quick' or 'deep') causes request rejection
- Payment failure via x402 prevents endpoint access
- Rate limiting or upstream fetch errors may return partial results

## How this service works

Pay-per-call x402 APIs for autonomous agents on Base USDC: API compatibility analysis, bounded HTTP/JSON workflows, URL evidence analysis, crypto price consensus, and agent/MCP readiness checks.

## Output

Returns a JSON object with an 'ok' boolean, the analysis tier used ('quick' or 'deep'), a 'result' object with structured findings, an 'evidence' array of individual evidence items found at the provided URLs, and a 'warnings' array flagging any issues or limitations discovered during analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "tier": {
   "enum": [
    "quick",
    "deep"
   ],
   "type": "string"
  },
  "input": {
   "type": "object",
   "properties": {
    "urls": {
     "type": "array",
     "items": {
      "type": "string",
      "format": "uri"
     },
     "minItems": 1
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tier": "quick",
  "result": {},
  "product": "research-evidence",
  "evidence": [],
  "warnings": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/genesis-agent-tools-url-evidence-analysis-research-evidence-36fcda92/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from genesis-agent-tools.genesisagenttools.workers.dev](https://www.zero.xyz/host/genesis-agent-tools.genesisagenttools.workers.dev/llms.txt)