# Verdicts Freshness Check

> Verdicts Freshness Check is a paid API for AI agents from verdictmcp.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).

Attests whether a cited claim and its source URL are still current and up-to-date, returning a machine-readable freshness verdict.

## Facts

- Endpoint: POST https://verdictmcp.com/verdict/freshness
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verdicts-freshness-check-10f601fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SLwMexwlfhZQeavhrIb_m

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 verdicts-freshness-check-10f601fd -d '<json body>'
```

Example prompt: Can you check if this claim is still current — 'The WHO declared COVID-19 a global pandemic in March 2020' — using the source URL https://www.who.int/news/item/27-04-2020-who-timeline---covid-19?

## When to prefer this

Choose this endpoint when you need a paid, attested freshness verdict for a specific claim-URL pair — especially in agentic pipelines where citation accuracy matters and you want a machine-readable confidence signal (reproduction_class). Prefer over free heuristics when auditability and attestation are important, such as before publishing AI-generated content or auditing a knowledge base.

## Known failure modes

- Source URL is unreachable or returns a non-200 status — verdict may be indeterminate
- Claim text is too vague or ambiguous for the service to match against the source
- Source URL points to paywalled or bot-blocked content — verification may fail
- Network timeout when fetching source content
- Invalid or missing required fields (claim or source_url) result in a 4xx error
- Payment of $0.01 USDC via x402 protocol not completed — request blocked with 402

## How this service works

x402-paid attestation verdicts: is this citation still current, and is this domain agent-ready. REST twin of the MCP server at https://verdictmcp.com/mcp.

## Output

Returns a JSON object with an 'ok' boolean, a 'type' field (e.g. 'freshness'), a 'verdict' string (e.g. 'current' or 'stale'), and a 'reproduction_class' integer indicating how reliably the claim can be reproduced or verified.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "claim": {
   "type": "string"
  },
  "source_url": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "type": "freshness",
  "verdict": "current",
  "reproduction_class": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verdicts-freshness-check-10f601fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verdictmcp.com](https://www.zero.xyz/host/verdictmcp.com/llms.txt)