grokzilla.shop / try

{ try it }

"skills": 36, // 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 36 skills

"gas-price": { Gas Price $0.001 EIP-1559 base fee and priority fee percentiles (p25/p50/p90) for Base and/or Ethereum via eth_feeHistory. Cached 10s. Optional eth-transfer USD estimate on Base.
"endpoint": "https://grokzilla.shop/api/skills/gas-price",
"method": "POST", "content_type": "application/json",
"price_usd": 0.001, // 1000 atomic USDC (6 decimals)
"network": "eip155:8453", // Base mainnet
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", // USDC
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"docs": "/docs/gas-price",
"you_provide": { // JSON body fields
optional array of string Value for `chains`. Optional · array of string default ["base"] Example: ["base"]
optional string Value for `request_id`. Optional · string min length 1 · max length 64
},
"request_body": // live, from your inputs
{
  "chains": [
    "base"
  ]
}
"you_get": { // HTTP 200 application/json after payment
"output_schema":
{
  "type": "object",
  "properties": {
    "ok": {
      "type": "boolean"
    },
    "skill": {
      "type": "string"
    },
    "service": {
      "type": "string"
    },
    "version": {
      "type": "string"
    },
    "summary": {
      "type": "string"
    },
    "data": {
      "type": "object",
      "properties": {
        "results": {
          "type": "array",
          "items": {
            "type": "object"
          }
        },
        "as_of": {
          "type": "string"
        }
      }
    },
    "confidence": {
      "type": "number"
    },
    "sources": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string"
          },
          "url": {
            "type": "string"
          },
          "fetched_at": {
            "type": "string"
          }
        }
      }
    },
    "generated_at": {
      "type": "string"
    },
    "data_as_of": {
      "type": "string"
    },
    "charged": {
      "type": "boolean"
    },
    "warnings": {
      "type": "array"
    },
    "next": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "required": [
    "ok",
    "skill"
  ]
}
"example":
{
  "ok": true,
  "skill": "gas_price",
  "service": "gas_price",
  "version": "1.0.0",
  "summary": "base base=0.012 tip~0.001 gwei",
  "data": {
    "results": [
      {
        "chain": "base",
        "chain_id": 8453,
        "block": 22000000,
        "base_fee_gwei": 0.012,
        "priority_fee_gwei": {
          "p25": 0.0,
          "p50": 0.001,
          "p90": 0.01
        },
        "suggested_max_fee_gwei": 0.025,
        "eth_transfer_usd": 1e-06
      }
    ],
    "as_of": "2026-10-24T14:00:00Z"
  },
  "confidence": 0.95,
  "sources": [
    {
      "name": "base eth_feeHistory",
      "url": "chain:8453",
      "fetched_at": "2026-10-24T14:00:00Z"
    }
  ],
  "generated_at": "2026-10-24T14:00:00Z",
  "data_as_of": "2026-10-24T14:00:00Z",
  "charged": true,
  "warnings": [],
  "next": [
    "erc20_meta",
    "token_price"
  ]
}
},
"flow": [
  1. POST https://grokzilla.shop/api/skills/gas-price 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: "1000", payTo}]} (same JSON in the body)
  3. your x402 client checks amount ≤ $0.001 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/gas-price on this host and decodes the 402. Never pays.

        

        
      

      
}