# SignalDesk AI Foot to Nanometer Converter

> SignalDesk AI Foot to Nanometer 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 2026-10-12).

Converts a length value from international feet to nanometers using IEEE-754 double precision arithmetic

## Facts

- Endpoint: GET https://x402-agent.kariguetoazul.workers.dev/api/units/length/foot-to-nanometer?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-foot-to-nanometer-converter-043d9104
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OpUYJgpPdbtTzwHP0vP6k

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-nanometer-converter-043d9104
```

Example prompt: Convert 123.45 feet to nanometers for me.

## When to prefer this

Use this endpoint when you need a reliable, paid, programmatic conversion from international feet to nanometers with IEEE-754 double precision output, particularly in automated agent workflows where reproducibility and exact numeric precision matter. Prefer this over manual calculation when integrating into a pipeline that already handles x402 micropayments.

## Known failure modes

- Missing required 'value' query parameter returns an error
- Negative input values are rejected (minimum is 0)
- Values exceeding 1e+100 are out of range and will be rejected
- Payment failure (402) if x402 USDC micropayment is not included
- Non-numeric input will fail schema validation

## 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

Returns a JSON object containing the original value in feet, the converted value in nanometers, the source and target unit labels ('foot' and 'nanometer'), the dimension type ('length'), and the precision specification ('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": "nanometer",
  "from": "foot",
  "value": 123.45,
  "converted": 37627560000,
  "dimension": "length",
  "precision": "IEEE-754 double"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-foot-to-nanometer-converter-043d9104/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)