# DCL Trust Oracle — Strict High-Impact Agent Action Evaluator

> DCL Trust Oracle — Strict High-Impact Agent Action Evaluator is a paid API for AI agents from bazaar.fronesislabs.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Performs higher-confidence safety evaluation for high-impact, sensitive, or difficult-to-reverse agent actions before they are executed.

## Facts

- Endpoint: GET https://bazaar.fronesislabs.com/evaluate/strict
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dcl-trust-oracle-strict-high-impact-agent-action-evaluator-27500d8a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3k8ruW0myCm3xN3SJNX70

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 dcl-trust-oracle-strict-high-impact-agent-action-evaluator-27500d8a
```

Example prompt: Before you go ahead and delete those production database records, run a strict DCL Trust Oracle evaluation on this DELETE action to give me a high-confidence safety verdict, confidence score, and reason — I want to make sure it passes policy before we proceed.

## When to prefer this

Choose this strict evaluation endpoint when an agent action is high-impact, difficult or impossible to reverse (e.g. DELETE operations, financial transactions, infrastructure changes), or requires a high-confidence safety verdict rather than a fast low-latency screen. Use this over the baseline or low-latency sibling endpoints when the cost of a false negative (allowing a harmful action) outweighs the cost of slightly higher latency or per-call pricing.

## Known failure modes

- Missing required 'input' field returns a validation error
- Unsupported HTTP method (e.g. POST) returns an enum mismatch error
- Payment not included or invalid USDC payment returns 402 Payment Required
- Malformed input object structure returns a schema validation failure
- Service unavailability returns a 5xx error with no verdict

## How this service works

Higher-confidence evaluation for high-impact, sensitive, or difficult-to-reverse agent actions.

## Output

Returns a JSON object containing a safety verdict (e.g. allow/block), a numeric confidence score (0–1), a human-readable reason, a drift score and drift mode indicating behavioral deviation, the policy version applied, a cryptographic input hash, a blockchain transaction hash for auditability, a chain index, and a Unix timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "verdict",
      "confidence",
      "reason",
      "tx_hash",
      "chain_index"
     ],
     "properties": {
      "reason": {
       "type": "string"
      },
      "tx_hash": {
       "type": "string"
      },
      "verdict": {
       "type": "string"
      },
      "timestamp": {
       "type": "number"
      },
      "confidence": {
       "type": "number"
      },
      "drift_mode": {
       "type": "string"
      },
      "input_hash": {
       "type": "string"
      },
      "chain_index": {
       "type": "integer"
      },
      "drift_score": {
       "type": "number"
      },
      "policy_version": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dcl-trust-oracle-strict-high-impact-agent-action-evaluator-27500d8a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bazaar.fronesislabs.com](https://www.zero.xyz/host/bazaar.fronesislabs.com/llms.txt)