# Rubric Protocol Wallet Payment Record

> Rubric Protocol Wallet Payment Record is a paid API for AI agents from rubric-protocol.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns attested x402 payment history for a given buyer wallet address, including settlement count, first/last-seen timestamps, total spend, services used, and distinct sellers observed — anchored immutably on Hedera HCS.

## Facts

- Endpoint: GET https://rubric-protocol.com/v1/x402/wallet-record/:address
- Price: $0.005/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-wallet-payment-record-7cc95538
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2eflN3JClyQKXVP6Yw7ri

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-wallet-payment-record-7cc95538
```

Example prompt: Pull the Rubric Protocol attested x402 payment record for wallet 0x4a3b...c7d2 — I want to see how many settlements they've made, their total spend, first and last payment dates, and which sellers they've dealt with.

## When to prefer this

Choose this endpoint when you need tamper-evident, blockchain-anchored payment history for a specific buyer wallet — especially when you need evidence-grade counterparty intelligence rather than a behavioral score or reputation opinion. Ideal for pre-transaction due diligence on x402 participants, compliance audits, or fraud screening where immutability and auditability matter. Prefer this over general wallet analytics tools when you specifically need x402 settlement data anchored on Hedera HCS.

## Known failure modes

- Wallet address not found in ledger — returns empty record or 404 if wallet has no x402 settlement history
- Invalid wallet address format — returns 400 with address validation error
- Hedera HCS node temporarily unavailable — may return 503 or delayed response
- No settlement activity for the address — returns record with zeroed counters and null timestamps
- Rate limiting or payment failure — returns 402 or 429 if x402 micropayment is not processed correctly

## How this service works

Attested x402 payment history for any buyer wallet: settlement count, first-seen, last-seen, total spent, services used,

## Output

Returns an attested, Hedera-anchored JSON record containing: total settlement count, first-seen and last-seen timestamps, cumulative USDC spent, list of services the wallet has paid for, and the number of distinct sellers observed — all derived from an append-only ledger and cryptographically anchored on Hedera HCS, making the record tamper-evident and non-revisable.

## 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": [
      "address"
     ],
     "properties": {
      "address": {
       "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-wallet-payment-record-7cc95538/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)