# Rubric Protocol Attested Policy Decision Review

> Rubric Protocol Attested Policy Decision Review is a paid API for AI agents from rubric-protocol.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Evaluates a proposed agent action against a specified policy, returns a verdict with reasoning and clauses applied, and anchors a post-quantum signed, Hedera-recorded attestation of the evaluation.

## Facts

- Endpoint: POST https://rubric-protocol.com/v1/x402/decision-review
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rubric-protocol-attested-policy-decision-review-0dc45a73
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1hFNvS25s80JUdLGK_zmf

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 rubric-protocol-attested-policy-decision-review-0dc45a73 -d '<json body>'
```

Example prompt: Check whether my proposed action — sending a wire transfer of $50,000 to an external vendor account — complies with our financial controls policy, and give me a signed, Hedera-anchored proof that this evaluation happened right now.

## When to prefer this

Choose this endpoint when you need not just a policy compliance verdict but an independently verifiable, tamper-proof cryptographic record that the evaluation occurred — especially in regulated industries, AI governance workflows, or any scenario where you must prove to a third party (auditor, regulator, safety board) that a specific policy was applied to a specific agent action at a specific time. Prefer this over simple rule-engine checks when post-quantum signing and blockchain anchoring are required for long-term auditability.

## Known failure modes

- Malformed input schema — missing required 'type' or 'method' fields returns a validation error
- Policy not interpretable — ambiguous or empty policy text may yield an inconclusive verdict
- Hedera anchoring failure — network congestion or HCS topic issues may delay or fail the on-chain record
- Payment failure — insufficient USDC or x402 protocol error results in 402 response and no evaluation
- Signature verification failure — internal ML-DSA key issues may prevent attestation issuance

## How this service works

Attested policy evaluation: submit a proposed agent action, its context, and the policy it must satisfy. Returns a verdi

## Output

A structured verdict indicating whether the proposed action passes or fails the specified policy, including the reasoning behind the decision and the specific policy clauses applied. Accompanied by a post-quantum ML-DSA-65 signed record and a Hedera HCS sequence anchor that cryptographically binds hashes of the action, context, and policy — independently verifiable on the Hedera mirror node long after the original agent is gone.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "format": {
     "type": "string"
    },
    "example": {}
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rubric-protocol-attested-policy-decision-review-0dc45a73/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from rubric-protocol.com](https://www.zero.xyz/host/rubric-protocol.com/llms.txt)