grokzilla.shop / try

{ try it }

"skills": 21, // pay-per-call, no account, no API key
"protocol": "x402 v2 · scheme exact",
"network": "eip155:8453", // Base mainnet
"this_page_pays": false // "Send unpaid request" only shows the 402 challenge. Paying stays with your own wallet or agent.
optional · prompt only The Base address your agent pays from. It is only written into the copyable agent prompt so your agent knows which wallet to use. It is never sent to the server and nothing is signed here.

← all 21 skills

"text-diff": { Text Diff $0.006 Lightweight deterministic line/word/char diff. Structured ops or unified output.
"endpoint": "https://grokzilla.shop/api/skills/text-diff",
"method": "POST", "content_type": "application/json",
"price_usd": 0.006, // 6000 atomic USDC (6 decimals)
"network": "eip155:8453", // Base mainnet
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", // USDC
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"docs": "/docs/text-diff",
"you_provide": { // JSON body fields
required string The original / old text. Required · string Example: "hello"
required string The new / changed text to compare against a. Required · string Example: "hallo"
},
"request_body": // live, from your inputs
{
  "a": "hello",
  "b": "hallo"
}
"you_get": { // HTTP 200 application/json after payment
"output_schema":
{
  "type": "object",
  "properties": {
    "skill": {
      "type": "string"
    },
    "ok": {
      "type": "boolean"
    },
    "mode": {
      "type": "string"
    },
    "ops": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "op": {
            "type": "string"
          },
          "value": {
            "type": "string"
          }
        }
      }
    },
    "inserted": {
      "type": "integer"
    },
    "deleted": {
      "type": "integer"
    },
    "equal": {
      "type": "integer"
    }
  },
  "required": [
    "ok",
    "skill"
  ]
}
"example":
{
  "skill": "text_diff",
  "ok": true,
  "mode": "lines",
  "ops": [
    {
      "op": "del",
      "value": "hello"
    },
    {
      "op": "ins",
      "value": "hallo"
    }
  ],
  "inserted": 1,
  "deleted": 1,
  "equal": 0
}
},
"flow": [
  1. POST https://grokzilla.shop/api/skills/text-diff with the JSON body, no payment header
  2. ← 402 Payment Required + PAYMENT-REQUIRED header: base64 JSON {x402Version: 2, accepts: [{scheme: "exact", network: "eip155:8453", asset: USDC, amount: "6000", payTo}]} (same JSON in the body)
  3. your x402 client checks amount ≤ $0.006 and signs a USDC transfer authorization to payTo with your wallet
  4. retry the same POST with PAYMENT-SIGNATURE: <base64> (x402 v2) or X-PAYMENT (v1 clients)
  5. ← 200 OK with the result JSON + PAYMENT-RESPONSE header (base64 settlement receipt, tx hash on Base)
],
"copy": { // fills in from your inputs as you type
"agent_prompt"

        

        

          
"curl" // unpaid: shows the 402

          

        

        

          
"agentcash" // pays from your AgentCash wallet

          

        

        
},

      


      

        
"try": // POSTs unpaid to /api/skills/text-diff on this host and decodes the 402. Never pays.

        

        
      

      
}