# Verity Suite Concord — Policy Compliance Checker

> Verity Suite Concord — Policy Compliance Checker is a paid API for AI agents from verity-suite.onrender.com, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).

Evaluates whether a given text complies with a specified policy, spec, or contract, returning a calibrated verdict and per-clause reasoning.

## Facts

- Endpoint: POST https://verity-suite.onrender.com/concord
- Price: $0.06/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-concord-policy-compliance-checker-1fc5a184
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oQ8LMgEzGbsLZsXlH0ExM

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-concord-policy-compliance-checker-1fc5a184 -d '<json body>'
```

Example prompt: Check whether this agent response — 'We recommend buying stock XYZ immediately for guaranteed returns' — complies with our financial advice policy: 'Section 1: Agents must not make guarantees of returns. Section 2: Recommendations must include a risk disclaimer. Section 3: Agents must not use urgency language to pressure decisions.' Focus especially on Sections 1 and 2.

## When to prefer this

Use this endpoint when you need a calibrated, fail-closed compliance verdict against a specific written policy, contract, or specification — especially in agentic pipelines where an incorrect 'compliant' verdict would be costly. Prefer this over generic LLM prompting when you need structured per-clause reasoning, a numeric compliance probability, and explicit tracking of unverifiable clauses. Ideal for AI governance, legal review automation, content moderation against written policies, or contract clause checking.

## Known failure modes

- Policy text too vague to apply → verdict returns 'uncertain' with compliance near 0.5
- Input text missing or empty → uncertain verdict with empty violations
- Policy references external facts not supplied in input → clauses listed as unverifiable
- Conflicting signals across clauses → partial verdict returned
- Very short or thin evidence in text → uncertain verdict to fail closed safely

## How this service works

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

## Output

Returns a verdict enum (compliant, non_compliant, partial, or uncertain), a calibrated compliance probability (0–1), a list of specific violated clauses with quoted evidence from the input text, and per-clause reasoning tying the verdict to specific policy text. Also includes any clauses that could not be judged from the provided inputs alone.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text",
  "policy"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "the output or text to evaluate for compliance against the policy"
  },
  "scope": {
   "type": "string",
   "description": "optional note on which clauses or aspects matter most, or what 'compliant' means in this context"
  },
  "policy": {
   "type": "string",
   "description": "the policy, spec, or contract text to check against, ideally with clause numbers or headings"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "title": "concord_out",
 "required": [
  "verdict",
  "compliance",
  "violations",
  "reasons"
 ],
 "properties": {
  "reasons": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Reasons",
   "description": "concrete per-clause reasoning tying the verdict to specific clause text and specific input text, including why uncertain clauses could not be confirmed"
  },
  "verdict": {
   "enum": [
    "compliant",
    "non_compliant",
    "partial",
    "uncertain"
   ],
   "type": "string",
   "title": "Verdict",
   "description": "compliant=every applicable clause is satisfied with clear support in the text; non_compliant=at least one applicable clause is clearly violated and none is left blocking-uncertain; partial=at least one applicable clause is clearly satisfied AND at least one is clearly violated; uncertain=the SAFE DEFAULT: policy or text missing/unreadable, policy too vague to apply, evidence too thin to decide, or an applicable clause cannot be confirmed met"
  },
  "compliance": {
   "type": "number",
   "title": "Compliance",
   "maximum": 1,
   "minimum": 0,
   "description": "calibrated probability the text fully complies with ALL applicable clauses; 1=clearly and fully complies, 0=clearly violates; stay near 0.5 when evidence is thin or the policy is ambiguous"
  },
  "violations": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Violations",
   "description": "each clearly-violated applicable clause: cite the clause id/text from the POLICY, then quote the specific part of the input text that breaks it; empty list if none found"
  },
  "unverifiable_clauses": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "title": "Unverifiable Clauses",
   "description": "applicable clauses that could not be judged from the inputs alone (missing context, external/current facts not supplied, or wording too ambiguous to apply)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verity-suite-concord-policy-compliance-checker-1fc5a184/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)