# Verity Suite Ground Quick

> Verity Suite Ground Quick is a paid API for AI agents from verity-suite.onrender.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Answers a question with a calibrated confidence score, caveats, and sources, returning an honest 'cannot determine' if uncertain

## Facts

- Endpoint: POST https://verity-suite.onrender.com/ground/quick
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verity-suite-ground-quick-1dcfd1f2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BBm2AMiplHlTdjEcq1fwT

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-ground-quick-1dcfd1f2 -d '<json body>'
```

Example prompt: With calibrated confidence, answer this question: 'Is the FDA required to approve dietary supplements before they are sold in the US?' — use this context if helpful: 'User is researching supplement regulations for a compliance report.'

## When to prefer this

Choose this endpoint when you need a trustworthy, calibrated answer with explicit uncertainty quantification rather than a confident-sounding but potentially hallucinated response. Ideal for compliance, research, or decision-support use cases where knowing the confidence level and caveats is as important as the answer itself. Prefer this over general LLM calls when you need the model to honestly say 'I don't know' rather than fabricate. The per-call payment model makes it suitable for agentic pipelines where you only pay for what you use.

## Known failure modes

- Question is too vague or ambiguous — returns low confidence answer with extensive caveats
- Question requires real-time data not available — returns honest 'cannot determine' with confidence near 0
- Malformed request missing required 'question' field — returns 400-level error
- Server cold start on Render deployment may cause timeout — retry recommended
- Context field too long may cause processing errors or truncation

## How this service works

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

## Output

A JSON object containing: an 'answer' string (the answer or an honest statement it cannot be determined), a 'confidence' float between 0 and 1 representing calibrated probability the answer is correct, a 'caveats' array listing gaps, assumptions, or uncertainties, and a 'sources' array of real sources actually used (may be empty).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "question"
 ],
 "properties": {
  "context": {
   "type": "string",
   "description": "optional context to consider"
  },
  "question": {
   "type": "string",
   "description": "the question to answer"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "title": "ground_out",
 "required": [
  "answer",
  "confidence"
 ],
 "properties": {
  "answer": {
   "type": "string",
   "title": "Answer",
   "description": "the answer, or an honest statement that it cannot be determined"
  },
  "caveats": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Caveats",
   "description": "gaps, assumptions, or uncertainties"
  },
  "sources": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Sources",
   "description": "real sources actually used (empty if none)"
  },
  "confidence": {
   "type": "number",
   "title": "Confidence",
   "maximum": 1,
   "minimum": 0,
   "description": "calibrated probability the answer is correct"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verity-suite-ground-quick-1dcfd1f2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verity-suite.onrender.com](https://www.zero.xyz/host/verity-suite.onrender.com/llms.txt)