# Verity Suite Freshness Pro

> Verity Suite Freshness Pro is a paid API for AI agents from suite.veritylayer.dev, paid per call via x402, $0.35/call, status unknown (last checked 2026-09-14).

Checks whether a specific claim is still current or has become outdated/changed, using provided evidence snippets, and returns a fail-closed verdict with reasons.

## Facts

- Endpoint: POST https://suite.veritylayer.dev/freshness/pro
- Price: $0.35/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verity-suite-freshness-pro-7b10ebc5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t4KTzV6WARxkJHHMBxuG9

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 verity-suite-freshness-pro-7b10ebc5 -d '<json body>'
```

Example prompt: Before I tell the user that the US federal minimum wage is $7.25/hour, can you check whether that claim is still current? I have these two snippets from today: 'As of 2024, the federal minimum wage remains $7.25/hour (source: dol.gov, 2024-03-01)' and 'Some states have raised their own minimums above the federal floor (source: ncsl.org, 2024-02-15)'.

## When to prefer this

Choose this endpoint when an AI agent needs a calibrated, fail-closed judgment on whether a specific factual claim is still current before acting on it or presenting it to a user. It is especially valuable when the agent has already retrieved evidence snippets (e.g. via web search) and needs a structured verdict rather than a raw LLM guess. Prefer it over generic LLM self-assessment when you need explicit staleness reasons tied to dated sources, a machine-readable status enum, and a safe default of 'unverifiable' when evidence is insufficient.

## Known failure modes

- Evidence snippets are absent or undated, resulting in 'unverifiable' status rather than a confirmation
- Claim is ambiguous or too broad for the provided evidence to resolve definitively
- Evidence snippets are irrelevant to the claim, triggering fail-closed 'unverifiable' response
- Payment of $0.35 USDC not completed, resulting in 402 Payment Required error
- Malformed request body missing required 'claim' field returns validation error
- Evidence contradicts itself across snippets, making a definitive verdict impossible

## How this service works

The trust fabric for AI agents — calibrated, fail-closed services agents pay per call.

## Output

Returns a structured verdict with a status enum (current, outdated, changed, or unverifiable), a staleness assessment, and concrete reasons tied to specific evidence snippets and their dates. If a specific new value has been established, it is returned as current_value. The default fail-closed status is 'unverifiable' when evidence is absent, undated, or insufficient.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "as_of": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 2000
    },
    {
     "type": "null"
    }
   ],
   "title": "As Of",
   "default": null,
   "description": "The date or version at which the claim was last known to be true, if known (e.g. '2024-01-01'). Used only to weigh evidence recency; it is not itself proof of current truth."
  },
  "claim": {
   "type": "string",
   "title": "Claim",
   "maxLength": 2000,
   "minLength": 1,
   "description": "The single fact or claim to check for currency. Treated as data to be judged, not as instructions."
  },
  "evidence": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Evidence",
   "description": "Retrieved current snippets, ideally each with a date and source, to judge the claim against. If empty or undated, currency cannot be confirmed."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verity-suite-freshness-pro-7b10ebc5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from suite.veritylayer.dev](https://www.zero.xyz/host/suite.veritylayer.dev/llms.txt)