# Rubric Protocol Agent Record Lookup

> Rubric Protocol Agent Record Lookup is a paid API for AI agents from rubric-protocol.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Retrieves the unforgeable operating history for a specific AI agent, including record count, first-seen date, and continuity attestation

## Facts

- Endpoint: GET https://rubric-protocol.com/v1/x402/agent-record/demo
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rubric-protocol-agent-record-lookup-b77cbe20
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ov7zzsw5YmDMHRWRa56Tm

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-agent-record-lookup-b77cbe20
```

Example prompt: Pull the Rubric Protocol operating history for agent ID 'agent-abc123' so I can see how long it's been active and how many attested records it has.

## When to prefer this

Use this endpoint when you need a tamper-proof, attested operating history for a specific AI agent — particularly when onboarding an unknown agent, proving an agent's longevity to a third party, or auditing continuity of operation. Prefer this over self-reported agent metadata whenever you need cryptographically anchored provenance.

## Known failure modes

- Unknown agentId returns 404 or empty record
- Payment failure via x402 results in 402 Payment Required
- Malformed agentId path parameter causes 400 Bad Request
- Agent has no recorded history yet, returning zero-count result
- Network or upstream Hedera connectivity issues causing timeout

## How this service works

Unforgeable operating history for any AI agent attesting through Rubric Protocol: record count, first-seen date, continu

## Output

Returns an attested operating history for the specified agent ID, including the total number of verified records, the first-seen timestamp, and continuity data that collectively constitute an unforgeable track record anchored through Rubric Protocol.

## 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"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "agentId"
     ],
     "properties": {
      "agentId": {
       "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-agent-record-lookup-b77cbe20/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)