# AgentTools Length Unit Converter

> AgentTools Length Unit Converter is a paid API for AI agents from agenttools-hub.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Converts a numeric value between any two length or distance units across metric and imperial systems, including nautical miles.

## Facts

- Endpoint: GET https://agenttools-hub.vercel.app/api/v1/converters/length-converter?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttools-length-unit-converter-0cc52f41
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hw6WNzNsMpi29zmf_A8dh

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 agenttools-length-unit-converter-0cc52f41
```

Example prompt: Convert 26.2 miles to kilometers for me.

## When to prefer this

Use this endpoint when an agent needs a fast, reliable, single-call conversion between any two length or distance units across metric and imperial systems, including less common units like micrometers, nanometers, and nautical miles. Prefer this over general-purpose computation tools when precision and support for the full range of length units is needed.

## Known failure modes

- Missing required query parameter (value, from, or to) returns an error
- Unsupported unit code returns a validation error — only km, m, cm, mm, um, nm, mi, yd, ft, in, nmi are accepted
- Non-numeric value input causes a parsing error
- Payment failure or missing x402 payment header results in a 402 response

## How this service works

Convert between metric and imperial length units: kilometers, meters, centimeters, millimeters, micrometers, nanometers, miles, yards, feet, inches and nautical miles. Use this when an agent needs to metric and imperial distance units, instantly.

## Output

Returns the converted numeric value in the requested target unit, given the source value and unit pair.

## 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",
      "from",
      "to"
     ],
     "properties": {
      "to": {
       "enum": [
        "km",
        "m",
        "cm",
        "mm",
        "um",
        "nm",
        "mi",
        "yd",
        "ft",
        "in",
        "nmi"
       ],
       "type": "string",
       "description": "To"
      },
      "from": {
       "enum": [
        "km",
        "m",
        "cm",
        "mm",
        "um",
        "nm",
        "mi",
        "yd",
        "ft",
        "in",
        "nmi"
       ],
       "type": "string",
       "description": "From"
      },
      "value": {
       "type": "number",
       "description": "Value"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agenttools-length-unit-converter-0cc52f41/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agenttools-hub.vercel.app](https://www.zero.xyz/host/agenttools-hub.vercel.app/llms.txt)