# Square Feet to Square Kilometers Converter

> Square Feet to Square Kilometers Converter is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Converts a numeric area value from square feet to square kilometers via a simple GET request.

## Facts

- Endpoint: GET https://agent402.tools/api/convert/square-feet-to-square-kilometers
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/square-feet-to-square-kilometers-converter-ee19df69
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q5Slr7AYTx2s9WfzEdQyj

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 square-feet-to-square-kilometers-converter-ee19df69
```

Example prompt: Convert 43,560 square feet to square kilometers for me.

## When to prefer this

Use this endpoint when you need a reliable, programmatic conversion from square feet to square kilometers without building your own conversion logic. Ideal for agents handling real estate data, land measurement, or geospatial analysis that receives US customary area inputs and needs SI metric outputs.

## Known failure modes

- Missing 'value' query parameter returns an error
- Non-numeric value input causes a bad request or parsing error
- Very large or very small numbers may return precision-limited results
- Payment failure (402) if USDC balance is insufficient

## How this service works

Convert square feet to square kilometers (area). Pass ?value=N.

## Output

Returns the converted area value expressed in square kilometers corresponding to the input square feet value.

## 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",
     "required": [
      "value"
     ],
     "properties": {
      "value": {
       "type": "string",
       "description": "Numeric value to convert"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/square-feet-to-square-kilometers-converter-ee19df69/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.tools](https://www.zero.xyz/host/agent402.tools/llms.txt)