# Open Horizon Machine Revenue – Evidence Decision API

> Open Horizon Machine Revenue – Evidence Decision API is a paid API for AI agents from ohd-machine-x402-v2.hibiki3027.workers.dev, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-03).

Analyzes URLs and an objective to produce structured buy-or-skip, vendor risk, procurement, or API QA decisions with evidence and machine-verifiable reason codes

## Facts

- Endpoint: POST https://ohd-machine-x402-v2.hibiki3027.workers.dev/api/evidence?utm_source=zero.xyz
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/open-horizon-machine-revenue-evidence-decision-api-90624f19
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_a-HVCJkHxJWRRGFOt7XSr

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 open-horizon-machine-revenue-evidence-decision-api-90624f19 -d '<json body>'
```

Example prompt: Can you run an evidence-based buy-or-skip decision on https://acme-supplier.com — my objective is to assess vendor reliability for a software procurement contract, and also check these two reference URLs: https://g2.com/acme and https://techcrunch.com/acme-review?

## When to prefer this

Use this endpoint when an AI agent needs a structured, evidence-backed decision on whether to proceed with a vendor, API, or purchase — especially in automated procurement pipelines, vendor onboarding flows, or API QA gates where machine-verifiable reason codes are required. Prefer it over general web scraping when a binary or scored decision with traceable evidence is needed rather than raw content.

## Known failure modes

- Payment not provided or x402 payment rejected — request is not fulfilled
- Invalid or unreachable URLs in the urls array — evidence gathering fails for those sources
- Objective string too vague — may result in low-confidence or generic decision output
- Rate limiting or worker timeout on Cloudflare — returns 5xx error
- Malformed request body — missing required fields returns validation error

## How this service works

Agent decision products for procurement, vendor risk, API QA and public-web buy-or-skip workflows. Strict x402 payment is required before fulfillment.

## Output

A structured JSON object containing a decision verdict (e.g. buy/skip/approve/reject), supporting evidence gathered from the submitted URLs, and machine-verifiable reason codes that explain the conclusion.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "evidence_pack": {
   "verdict": "PASS",
   "findings": [
    {
     "kind": "public_page",
     "status": "verified"
    }
   ],
   "pages_checked": 8,
   "evidence_count": 12
  },
  "machine_verifiable": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/open-horizon-machine-revenue-evidence-decision-api-90624f19/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ohd-machine-x402-v2.hibiki3027.workers.dev](https://www.zero.xyz/host/ohd-machine-x402-v2.hibiki3027.workers.dev/llms.txt)