# SignalDesk AI – Foot to Mile Converter

> SignalDesk AI – Foot to Mile Converter is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).

Converts a numeric value in international feet to miles using IEEE-754 double precision arithmetic

## Facts

- Endpoint: GET https://x402-agent.kariguetoazul.workers.dev/api/units/length/foot-to-mile?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-foot-to-mile-converter-1da42a4f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__fklxFGsT9Wf8ge1N5ETo

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 signaldesk-ai-foot-to-mile-converter-1da42a4f
```

Example prompt: How many miles is 26400 feet? Use the foot-to-mile converter and give me the exact decimal result.

## When to prefer this

Use this endpoint when you need a quick, precise, paid-per-call foot-to-mile conversion with a structured JSON response including unit metadata. Prefer this over manual calculation when you need a reliable double-precision result with labeled from/to fields. It is a simple read-only computation with no side effects and predictable latency, making it safe to call in any workflow.

## Known failure modes

- Missing required 'value' query parameter returns an error
- Negative value rejected (minimum is 0 per schema)
- Value exceeding 1e+100 rejected by schema validation
- Non-numeric input causes validation failure
- Payment of 0.001 USDC required per call; unpaid requests return HTTP 402

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

A JSON object containing the original value in feet, the converted value in miles as an IEEE-754 double-precision float, the source unit ('foot'), the target unit ('mile'), and the measurement dimension ('length'). Example: {from:'foot', to:'mile', value:123.45, converted:0.02338068..., dimension:'length', precision:'IEEE-754 double'}.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "value"
     ],
     "properties": {
      "value": {
       "type": "number",
       "maximum": 1e+100,
       "minimum": 0,
       "description": "Amount in international feet."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "mile",
  "from": "foot",
  "value": 123.45,
  "converted": 0.02338068181818182,
  "dimension": "length",
  "precision": "IEEE-754 double"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-foot-to-mile-converter-1da42a4f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)