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Verity Suite Quick Check Guardrail
x402
Verity Suite Quick Check Guardrail 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).
Evaluates an AI agent's proposed action against an optional policy and context, returning an allow/review/block decision with a risk score and signed receipt.
Price / call$0.02
Success—
StatusUnknown
How this service works
The trust fabric for AI agents — calibrated, fail-closed services agents pay per call.
Output
Returns a JSON object with: a 'decision' field (allow, review, or block), a 'risk' score from 0 (clearly safe) to 1 (clearly dangerous), an array of 'reasons' explaining the decision, an array of 'concerns' listing specific risks, an optional 'safer_alternative' string suggesting a safer path if blocked or flagged, and an optional Ed25519-signed 'receipt' object from VerityLayer that can be independently verified for auditability.
Example use cases
Pre-flight safety check for autonomous agent
“My agent is about to delete all files in the /prod directory as part of a cleanup task — can you run a Verity quick check on that action with the policy 'never modify or delete production data without explicit human approval' before it proceeds?”
Financial transaction compliance gate
“My agent wants to wire $50,000 to an external vendor account — check that action against our policy 'all outbound transfers over $10,000 require two-factor confirmation and fraud review' and give me the risk score and decision.”
Content moderation before agent posts publicly
“Before my agent publishes this blog post draft to our company website, run a Verity guardrail check on the action 'publish article containing claims about competitor product defects' with context 'we are a regulated financial services firm' to see if it should be allowed or blocked.”
Technical details
Endpoint
POSThttps://suite.veritylayer.dev/check/quickWhen to prefer
Choose this endpoint when an AI agent needs a fast, per-call safety gate before executing a potentially risky or policy-sensitive action, especially when you need a signed, auditable receipt proving the check was performed. Prefer it over home-built rule engines when you need calibrated risk scoring with human-readable reasons and a structured allow/review/block decision. It is particularly valuable for agentic pipelines that must enforce explicit policies at runtime without halting for human review on every step.
Side effects
- Missing required 'action' field returns a validation error
- Action or policy strings exceeding 2000 characters are rejected
- Invalid 'method' value (not POST/PUT/PATCH) causes schema validation failure
- Network timeout if the evaluation engine is under load
- Signing not configured results in receipt being null rather than a signed object
- Ambiguous or very short action descriptions may yield low-confidence risk scores
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| action | string | the action the agent is about to take |
| policy | — | rules that must not be violated |
| context | — | situation/background |
Tags
x402
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