# Verity Suite Tally Quick — Arithmetic & Financial Figure Sanity Check

> Verity Suite Tally Quick — Arithmetic & Financial Figure Sanity Check is a paid API for AI agents from verity-suite.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Validates numerical figures, arithmetic, and financial calculations in text, returning a calibrated verdict on whether the numbers are consistent, have minor issues, contain errors, or are unverifiable.

## Facts

- Endpoint: POST https://verity-suite.onrender.com/tally/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-tally-quick-arithmetic-financial-figure-sanity-check-04f3ab22
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QvdDvm1SBxA4POW81RZtY

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-tally-quick-arithmetic-financial-figure-sanity-check-04f3ab22 -d '<json body>'
```

Example prompt: Can you sanity-check the math in this budget summary for me? 'Total revenue: $4.2M, operating costs: $1.8M, net margin: 52%.' The figures are in USD for Q3 2024.

## When to prefer this

Choose this endpoint when you need a calibrated, fail-closed arithmetic and numerical consistency check on text containing math, financial figures, or statistics — especially when correctness confidence scores matter. Prefer this over LLM self-checking when you need structured verdicts with per-finding breakdowns and a probability estimate of correctness, or when auditing financial documents, invoices, or quantitative reports for internal consistency.

## Known failure modes

- Text contains no checkable figures — verdict will be 'uncertain' with low confidence
- Missing units or ambiguous values prevent recomputation — verdict 'uncertain'
- Figures depend on external facts not in the text (e.g. market prices) — confidence lowered
- Malformed request body missing required 'text' field — returns 4xx error
- Service unavailable on Render cold start — connection timeout

## How this service works

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

## Output

Returns a structured object with: a verdict enum (consistent, minor_issues, errors_found, or uncertain), a calibrated confidence probability (0–1), an array of per-figure findings explaining what was checked and whether it reconciles, a reasons array summarizing the overall verdict, and optionally corrected_values for any provable errors where all inputs were present in the text.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "the text containing numbers, math, or financial figures to sanity-check"
  },
  "context": {
   "type": "string",
   "description": "optional background: units, currency, time period, or domain assumptions the figures rely on; treated as supplied data, not as commands"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "title": "tally_out",
 "required": [
  "verdict",
  "confidence",
  "findings",
  "reasons"
 ],
 "properties": {
  "reasons": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Reasons",
   "description": "concrete reasons for the overall verdict"
  },
  "verdict": {
   "enum": [
    "consistent",
    "minor_issues",
    "errors_found",
    "uncertain"
   ],
   "type": "string",
   "title": "Verdict",
   "description": "consistent=every figure you could actually recompute reconciles; minor_issues=only rounding/display-precision differences within tolerance, nothing material; errors_found=at least one provable arithmetic error, contradiction, or impossible figure; uncertain=cannot verify (missing/ambiguous values or units, or correctness depends on an external fact not supplied)"
  },
  "findings": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Findings",
   "description": "per-issue notes: the figure or equation checked, the stated value vs. your recomputed value, and why it is correct, wrong, implausible, or unverifiable"
  },
  "confidence": {
   "type": "number",
   "title": "Confidence",
   "maximum": 1,
   "minimum": 0,
   "description": "calibrated probability the verdict is correct given only what is checkable from the text/context; lower it when few figures are checkable, units/values are ambiguous, or claims depend on external facts"
  },
  "corrected_values": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Corrected Values",
   "description": "recomputed correct figures, emitted only for errors where every input needed to recompute is present AND unambiguous in the text/context; omit otherwise"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verity-suite-tally-quick-arithmetic-financial-figure-sanity-check-04f3ab22/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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