# Vendor & Company Evidence Brief

> Vendor & Company Evidence Brief is a paid API for AI agents from api.x402-engine.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-20).

Performs decision-ready public-evidence due diligence on a company, vendor, or counterparty, returning cited findings, material risks, conflicting claims, and a hash-bound delivery receipt.

## Facts

- Endpoint: POST https://api.x402-engine.com/v1/company-due-diligence?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vendor-company-evidence-brief-74988a33
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zp8DvP44OfbvLTY8OihW2

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 vendor-company-evidence-brief-74988a33 -d '<json body>'
```

Example prompt: Can you run a due diligence brief on Acme Logistics Inc. (domain: acmelogistics.com, US jurisdiction) covering the last 180 days? Focus on legal risks and financial stability — I need cited findings, any conflicting claims, and a summary of material risks before we sign a supplier contract.

## When to prefer this

Choose this endpoint when you need structured, cited, conflict-aware due diligence on a specific company, vendor, or counterparty rather than a general web search. It is particularly valuable when you need material risk identification, conflicting-claims detection, and a verifiable hash-bound receipt for audit purposes. Prefer this over generic search tools when you need decision-ready intelligence with provenance and freshness guarantees rather than raw search results.

## Known failure modes

- Insufficient public evidence found for obscure or newly formed companies
- Ambiguous company name matches multiple entities — may require domain or jurisdiction to disambiguate
- Stale evidence if freshness_days threshold cannot be met by available sources
- API returns error if neither company_name nor domain is provided
- Rate limits or payment failure via x402 protocol blocking the request

## How this service works

Decision-ready public-evidence due diligence for a company, vendor or counterparty. Returns cited findings, material risks, conflicting claims, freshness and validation evidence, plus a locally verifiable hash-bound delivery receipt.

## Output

A structured JSON object containing cited public-evidence findings, identified material risks, conflicting or disputed claims, freshness and validation metadata indicating how current the evidence is, and a locally verifiable hash-bound delivery receipt confirming the integrity of the response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "depth": {
   "type": "string",
   "const": "standard",
   "title": "Depth",
   "default": "standard"
  },
  "focus": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Focus",
   "maxItems": 12
  },
  "domain": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 253,
     "minLength": 3
    },
    {
     "type": "null"
    }
   ],
   "title": "Domain",
   "default": null
  },
  "output": {
   "type": "string",
   "const": "json",
   "title": "Output",
   "default": "json"
  },
  "question": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 4000,
     "minLength": 3
    },
    {
     "type": "null"
    }
   ],
   "title": "Question",
   "default": null
  },
  "company_name": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 240,
     "minLength": 1
    },
    {
     "type": "null"
    }
   ],
   "title": "Company Name",
   "default": null
  },
  "jurisdiction": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 120,
     "minLength": 2
    },
    {
     "type": "null"
    }
   ],
   "title": "Jurisdiction",
   "default": null
  },
  "lookback_days": {
   "type": "integer",
   "title": "Lookback Days",
   "default": 90,
   "maximum": 3650,
   "minimum": 1
  },
  "freshness_days": {
   "type": "integer",
   "title": "Freshness Days",
   "default": 30,
   "maximum": 3650,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vendor-company-evidence-brief-74988a33/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402-engine.com](https://www.zero.xyz/host/api.x402-engine.com/llms.txt)