# CuseTheJuice Hash Anchor Create

> CuseTheJuice Hash Anchor Create is a paid API for AI agents from app.cusethejuice.com, paid per call via x402, $0.1/call, status down (last checked 2026-09-15).

Stores a SHA-256 hash of a file in Base blockchain transaction calldata, creating a tamper-proof timestamped record for $0.10 USDC via x402 payment

## Facts

- Endpoint: POST https://app.cusethejuice.com/api/bots/hash-anchor/create
- Price: $0.1/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/app-cusethejuice-com-82fe8020
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kG8yebIUkHxWcVujj6zgl

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 app-cusethejuice-com-82fe8020 -d '<json body>'
```

Example prompt: Anchor this SHA-256 hash to the Base blockchain so I have a tamper-proof on-chain record — the hash is e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 and the original file size is 204800 bytes.

## When to prefer this

Use this endpoint when you need to create a verifiable, immutable on-chain record that a specific file existed and had a specific SHA-256 hash at a point in time — ideal for document notarization, audit trails, intellectual property timestamping, or compliance proofs. Prefer this over centralized timestamping services when tamper-proof blockchain proof is required. Pair with the sibling hash-anchor/verify endpoint to later confirm the anchor.

## Known failure modes

- Missing or invalid SHA-256 hash input — returns 400 bad request
- sizeBytes parameter not provided for POST upload — returns 400 bad request
- Insufficient USDC balance or failed x402 payment — returns 402 payment required
- Base network congestion causing delayed or failed transaction submission
- Invalid x402 payment extension format — returns 402 with extensions.bazaar details
- Rate limiting or service downtime — returns 503

## How this service works

CuseTheJuice agent APIs on Base USDC: email relay, spam and phishing checks, IP threat scoring, Base Notary hash anchors, and Jupiter Solana swap quotes. Hash anchor (create): flat $0.1 per request. SHA-256 stored in Base tx calldata (sizeBytes required for POST upload). Pay with x402 (Base USDC). HTTP shape: extensions.bazaar on the 402. Catalog: https://app.cusethejuice.com/agents

## Output

Returns a Base blockchain transaction ID and confirmation that the SHA-256 hash has been stored in the transaction's calldata, providing a permanent, publicly verifiable on-chain anchor record. The agent receives proof of the anchoring event including the transaction reference.

## 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",
     "required": [
      "fileBase64"
     ],
     "properties": {
      "filename": {
       "type": "string"
      },
      "fileBase64": {
       "type": "string",
       "description": "Base64-encoded file bytes"
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "result"
     ],
     "properties": {
      "error": {
       "type": "string"
      },
      "result": {
       "type": [
        "object",
        "null"
       ],
       "required": [
        "sha256",
        "payload",
        "txHash",
        "blockNumber",
        "network",
        "explorerUrl",
        "sizeBytes",
        "fees"
       ],
       "properties": {
        "fees": {
         "type": "object",
         "required": [
          "flatFeeUsd",
          "totalUsd"
         ],
         "properties": {
          "totalUsd": {
           "type": "number"
          },
          "flatFeeUsd": {
           "type": "number"
          }
         }
        },
        "sha256": {
         "type": "string"
        },
        "txHash": {
         "type": "string"
        },
        "network": {
         "type": "string"
        },
        "payload": {
         "type": "string"
        },
        "filename": {
         "type": "string"
        },
        "sizeBytes": {
         "type": "number"
        },
        "blockNumber": {
         "type": "string"
        },
        "explorerUrl": {
         "type": "string"
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "result"
 ],
 "properties": {
  "error": {
   "type": "string"
  },
  "result": {
   "type": [
    "object",
    "null"
   ],
   "required": [
    "sha256",
    "payload",
    "txHash",
    "blockNumber",
    "network",
    "explorerUrl",
    "sizeBytes",
    "fees"
   ],
   "properties": {
    "fees": {
     "type": "object",
     "required": [
      "flatFeeUsd",
      "totalUsd"
     ],
     "properties": {
      "totalUsd": {
       "type": "number"
      },
      "flatFeeUsd": {
       "type": "number"
      }
     }
    },
    "sha256": {
     "type": "string"
    },
    "txHash": {
     "type": "string"
    },
    "network": {
     "type": "string"
    },
    "payload": {
     "type": "string"
    },
    "filename": {
     "type": "string"
    },
    "sizeBytes": {
     "type": "number"
    },
    "blockNumber": {
     "type": "string"
    },
    "explorerUrl": {
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/app-cusethejuice-com-82fe8020/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from app.cusethejuice.com](https://www.zero.xyz/host/app.cusethejuice.com/llms.txt)