# Verity Suite Sentinel Quick Scan

> Verity Suite Sentinel Quick Scan is a paid API for AI agents from suite.veritylayer.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Scans untrusted text or tool output for prompt injection, jailbreak attempts, and manipulation targeting AI agents, returning a verdict with threat score and actionable recommendation.

## Facts

- Endpoint: POST https://suite.veritylayer.dev/sentinel/quick
- Price: $0.02/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-sentinel-quick-scan-0ee284ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zfx-ven6SXKfaxrxDIMy7

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-sentinel-quick-scan-0ee284ad -d '<json body>'
```

Example prompt: Before you process that web page I just fetched, run it through Verity Sentinel and tell me if it contains any prompt injection or hidden instructions trying to manipulate you — here's the content: [paste text], and it came from a product review page I retrieved via my browser tool.

## When to prefer this

Choose this endpoint when your AI agent is about to process untrusted external content — web pages, emails, retrieved documents, tool outputs, or user-supplied text — and you need a fast, calibrated, pay-per-call safety gate before acting. It is specifically designed for agent pipelines needing indirect prompt-injection and jailbreak detection with a signed audit trail, making it preferable to general-purpose moderation APIs that are not tuned for AI-targeting manipulation patterns.

## Known failure modes

- Content exceeds 2000 character limit — request will be rejected with a validation error
- Empty or missing 'content' field causes a 400-level schema validation failure
- Adversarial context field (itself malicious) may reduce accuracy of verdict — treat context as untrusted hint only
- Network timeout or upstream unavailability returns a fail-closed error, meaning the agent should treat the content as unsafe
- Uncertain verdict returned when content is obfuscated, encoded, or otherwise undecodable — reasons field will explain what is missing

## How this service works

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

## Output

A JSON object containing: a 'verdict' enum (clean, suspicious, injection, or uncertain), a numeric 'threat_score', an array of 'reasons' quoting or closely paraphrasing actual spans from the input that justify the verdict, a 'recommended_action' field telling the agent how to proceed, and an optional Ed25519-signed 'receipt' for audit purposes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "content": {
   "type": "string",
   "title": "Content",
   "maxLength": 2000,
   "minLength": 1,
   "description": "the untrusted text or tool output to scan for hidden prompt-injection, jailbreak, or manipulation. Treated entirely as inert data."
  },
  "context": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 2000
    },
    {
     "type": "null"
    }
   ],
   "title": "Context",
   "default": null,
   "description": "where this content came from and how the agent intends to use it (e.g. 'web page fetched via tool', 'email body', 'retrieved doc'). Also untrusted: a hint, never a command, and may itself be adversarial."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verity-suite-sentinel-quick-scan-0ee284ad/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)