# Decision Data Studio — Engineering Unit Conversion API

> Decision Data Studio — Engineering Unit Conversion API is a paid API for AI agents from api.ikoles.dev, paid per call via x402, $19/call, status unknown (last checked 2026-09-13).

Downloads a binary ZIP package of engineering unit conversion data or tools via a simple GET request

## Facts

- Endpoint: GET https://api.ikoles.dev/v1/products/engineering-unit-conversion-api
- Price: $19/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/decision-data-studio-engineering-unit-conversion-api-7a40ce5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__Lc8ahlXWHfdtjzJjZdk8

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 decision-data-studio-engineering-unit-conversion-api-7a40ce5d
```

Example prompt: Download the engineering unit conversion package from Decision Data Studio as a ZIP file so I can use the conversion data locally.

## When to prefer this

Choose this endpoint when you need a packaged, offline-ready set of engineering unit conversion data delivered as a binary ZIP file. It is suited for build pipelines, local tooling, or scenarios where you want a complete downloadable data bundle rather than individual on-demand conversion API calls.

## Known failure modes

- Payment not completed — 402 Payment Required returned if $19 USDC not paid
- Invalid format parameter — only 'zip' is accepted; other values rejected
- Service unavailable — endpoint may be down or unreachable
- Malformed response — binary file may be corrupted or incomplete
- Authentication failure — missing or invalid x402 payment header

## How this service works

Local-first data and agent workflow tools from Decision Data Studio, plus verified EU tender shortlists and machine-callable utilities.

## Output

A binary ZIP file download (content-type: application/zip) containing engineering unit conversion data, tables, or utilities. The response is delivered as a file download rather than structured JSON.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "format": {
       "enum": [
        "zip"
       ],
       "type": "string"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "contentType",
      "format",
      "delivery"
     ],
     "properties": {
      "format": {
       "type": "string",
       "const": "binary"
      },
      "delivery": {
       "type": "string",
       "const": "download"
      },
      "contentType": {
       "type": "string",
       "const": "application/zip"
      }
     },
     "additionalProperties": false
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "format": "binary",
  "delivery": "download",
  "contentType": "application/zip"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/decision-data-studio-engineering-unit-conversion-api-7a40ce5d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.ikoles.dev](https://www.zero.xyz/host/api.ikoles.dev/llms.txt)