Api Endpoint

modell.halowerk.com

Two checks in one. First the arguments are validated against the tool input schema and every violation is reported with its path and a sentence saying what to change. Second, values that satisfy the schema but look wrong are flagged: an unset required field filled with a placeholder like "string" or "TODO", a number at a suspicious order of magnitude, an address that fails its checksum shape, a destructive flag set to true, an empty string where content was expected.

Open interactive test console

Offering

Provider: modell.halowerk.com
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Development
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://modell.halowerk.com/v1/tool-arg-validate
MIME type: Not provided
First seen: 2026-10-16T01:58:26.121Z
Last seen: 2026-11-01T15:24:33.269Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
  }
]

Observed health

Status: Healthy
Latest latency: 316 ms
Average latency: 446 ms
HTTP status: 204
Last checked: 2026-11-03T05:43:06.783Z
Reachability: 100% over 5 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "arguments": {
          "description": "The arguments about to be sent.",
          "type": "object"
        },
        "expected_magnitude": {
          "additionalProperties": {
            "type": "number"
          },
          "description": "Optional per-field order-of-magnitude hint, e.g. {\"amount\": 100}. A value more than 100x off is flagged.",
          "type": "object"
        },
        "irreversible": {
          "default": false,
          "description": "Mark the call as irreversible. Raises every warning one level.",
          "type": "boolean"
        },
        "schema": {
          "description": "The tool input schema.",
          "type": "object"
        },
        "tool_name": {
          "description": "Name of the tool, carried into the report.",
          "maxLength": 128,
          "type": "string"
        }
      },
      "required": [
        "arguments",
        "schema"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "arguments": {
              "description": "The arguments about to be sent.",
              "type": "object"
            },
            "expected_magnitude": {
              "additionalProperties": {
                "type": "number"
              },
              "description": "Optional per-field order-of-magnitude hint, e.g. {\"amount\": 100}. A value more than 100x off is flagged.",
              "type": "object"
            },
            "irreversible": {
              "default": false,
              "description": "Mark the call as irreversible. Raises every warning one level.",
              "type": "boolean"
            },
            "schema": {
              "description": "The tool input schema.",
              "type": "object"
            },
            "tool_name": {
              "description": "Name of the tool, carried into the report.",
              "maxLength": 128,
              "type": "string"
            }
          },
          "required": [
            "arguments",
            "schema"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}