# SignalDesk AI Fahrenheit to Celsius Converter

> SignalDesk AI Fahrenheit to Celsius 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 temperature value from degrees Fahrenheit to degrees Celsius with IEEE-754 double precision.

## Facts

- Endpoint: GET https://x402-agent.kariguetoazul.workers.dev/api/units/temperature/fahrenheit-to-celsius?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-fahrenheit-to-celsius-converter-04e67fc5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tVELO4WOUUnoRr971XgTb

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-fahrenheit-to-celsius-converter-04e67fc5
```

Example prompt: Convert 98.6 degrees Fahrenheit to Celsius for me.

## When to prefer this

Use this endpoint when you need a simple, reliable, pay-per-call Fahrenheit-to-Celsius conversion with IEEE-754 double precision and no setup overhead. Prefer it over general-purpose math libraries when operating in an agentic pipeline that already uses x402 micropayment infrastructure, or when you need a consistent, schema-validated API response format for temperature unit conversion.

## Known failure modes

- Missing or non-numeric 'value' query parameter returns a 400 or validation error
- Value below absolute zero (-459.67°F) rejected due to schema minimum constraint
- Payment not included or insufficient USDC triggers 402 Payment Required response
- Cloudflare Worker unavailability returns 503 or network timeout

## 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 and unit ('fahrenheit'), the converted value in Celsius as an IEEE-754 double-precision float, the target unit ('celsius'), and the dimension label ('temperature'). Example: {"from":"fahrenheit","to":"celsius","value":100,"converted":37.777...,"dimension":"temperature","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": -459.66999999999996,
       "description": "Amount in degrees Fahrenheit."
      }
     },
     "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": "celsius",
  "from": "fahrenheit",
  "value": 100,
  "converted": 37.77777777777777,
  "dimension": "temperature",
  "precision": "IEEE-754 double"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-fahrenheit-to-celsius-converter-04e67fc5/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)