HALOWERK kettenwerk

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "docs": "https://kette.halowerk.com/llms.txt",
  "name": "honeypot_check",
  "error": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "asset": "USDC",
        "version": "2",
        "eip712Domain": {
          "name": "USD Coin",
          "chainId": 8453,
          "version": "2",
          "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        },
        "network_name": "Base Mainnet",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "pricing": "https://kette.halowerk.com/pricing",
  "summary": "Simulates a transfer of an ERC-20 token against the live chain state with an overridden balance and reports, step by step, whether it goes through or reverts - without ever sending a transaction.",
  "resource": {
    "url": "https://kette.halowerk.com/token/honeypot",
    "iconUrl": "https://kette.halowerk.com/favicon.svg",
    "mimeType": "application/json",
    "description": "Runs each step separately as a simulation (eth_call with state override) against the current chain state and reports each result on its own, so a token that can be received but not moved on is visible as exactly that. Nothing is ever executed: no transaction is broadcast, no key is held, no approval is given. Limits, and they are decisive: can_buy and can_sell through a DEX router are NOT simulated - that needs a funded account and a router path this service cannot back, so both stay null. What ",
    "serviceName": "HALOWERK kettenwerk"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "chain": "eip155:8453",
            "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        }
      },
      "schema": {
        "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": [
                  "chain",
                  "token"
                ],
                "properties": {
                  "chain": {
                    "type": "string",
                    "description": "Chain identifier, for example ethereum, base, arbitrum, optimism, polygon or bsc."
                  },
                  "token": {
                    "type": "string",
                    "description": "ERC-20 contract address, 0x followed by 40 hex characters."
                  },
                  "holder": {
                    "type": "string",
                    "description": "Optional: an address that actually holds the token. Its balance is used as the source for the transfer simulation, which makes the result far more meaningful."
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "price_usdc": "0.010",
  "description": "Runs each step separately as a simulation (eth_call with state override) against the current chain state and reports each result on its own, so a token that can be received but not moved on is visible as exactly that. Nothing is ever executed: no transaction is broadcast, no key is held, no approval is given. Limits, and they are decisive: can_buy and can_sell through a DEX router are NOT simulated - that needs a funded account and a router path this service cannot back, so both stay null. What IS tested is the transfer itself, which is where most traps sit. Balances are overridden at the account level, not inside the token contract storage, so a token that reads balances from its own mapping may report zero and the step then ends as \"unklar\" rather than as a pass. A negative result is no proof of fraud and a positive one is no clearance: the contract can change its behaviour after this check, and an owner with a tax switch can flip it at any time. That sentence belongs to every answer. Where the simulation does not carry, the verdict is \"unklar\" and the fields stay null.",
  "inputSchema": {
    "type": "object",
    "required": [
      "chain",
      "token"
    ],
    "properties": {
      "chain": {
        "type": "string",
        "description": "Chain identifier, for example ethereum, base, arbitrum, optimism, polygon or bsc."
      },
      "token": {
        "type": "string",
        "description": "ERC-20 contract address, 0x followed by 40 hex characters."
      },
      "holder": {
        "type": "string",
        "description": "Optional: an address that actually holds the token. Its balance is used as the source for the transfer simulation, which makes the result far more meaningful."
      }
    },
    "additionalProperties": false
  },
  "price_model": "per_call",
  "x402Version": 2,
  "instructions": "Sign the accepted terms with an x402 client and repeat the request with the payment header.",
  "outputSchema": {
    "type": "object"
  },
  "payment_header": "PAYMENT-SIGNATURE",
  "capability_request": {
    "url": "https://bedarf.halowerk.com/capabilities/request",
    "cost": "free",
    "method": "POST",
    "description": "Missing a capability, or does the scope not fit? Report the need here - no payment required. Similar reports are bundled; the response returns an id you can check back on.",
    "body_example": {
      "max_price": 0.01,
      "description": "what exactly is needed",
      "requested_capability": "short label"
    }
  }
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "asset": "USDC",
      "version": "2",
      "eip712Domain": {
        "name": "USD Coin",
        "chainId": 8453,
        "version": "2",
        "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
      },
      "network_name": "Base Mainnet",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "chain": "eip155:8453",
          "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      }
    },
    "schema": {
      "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": [
                "chain",
                "token"
              ],
              "properties": {
                "chain": {
                  "type": "string",
                  "description": "Chain identifier, for example ethereum, base, arbitrum, optimism, polygon or bsc."
                },
                "token": {
                  "type": "string",
                  "description": "ERC-20 contract address, 0x followed by 40 hex characters."
                },
                "holder": {
                  "type": "string",
                  "description": "Optional: an address that actually holds the token. Its balance is used as the source for the transfer simulation, which makes the result far more meaningful."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-08-11 09:09Z

Last indexed by Roundhouse

2026-09-10 09:00Z

Last enriched (probe, favicon, geo)

2026-09-24 12:15Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402