# AgentTools Speed Unit Converter

> AgentTools Speed Unit Converter is a paid API for AI agents from agentstoolshub.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).

Converts a numeric speed value between km/h, mph, m/s, knots, and ft/s using exact unit definitions.

## Facts

- Endpoint: GET https://agentstoolshub.com/api/v1/converters/speed-converter?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttools-speed-unit-converter-d9b643b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nNILj9VOTYDOrLUzpIBIA

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-speed-unit-converter-d9b643b0
```

Example prompt: Convert 120 km/h to miles per hour for me.

## When to prefer this

Use this endpoint when an agent needs to accurately convert speed values between any combination of km/h, mph, m/s, knots, and ft/s. Prefer this over manual calculation to ensure exact unit definitions are used, especially for aviation (knots), maritime, or scientific (m/s) contexts.

## Known failure modes

- Missing required query params (value, from, to) returns an error
- Unsupported unit enum value returns a validation error
- Non-numeric value input causes a bad request error
- Same source and target unit returns the same value (edge case, not truly an error)

## How this service works

Convert speed units: kilometers per hour, miles per hour, meters per second, knots and feet per second with exact definitions. Use this when an agent needs to km/h, mph, m/s, knots and ft/s.

## Output

Returns the converted numeric speed value in the requested target unit (one of: kmh, mph, ms, kn, fts), computed using exact unit definitions.

## 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": [
        "kmh",
        "mph",
        "ms",
        "kn",
        "fts"
       ],
       "type": "string",
       "description": "To"
      },
      "from": {
       "enum": [
        "kmh",
        "mph",
        "ms",
        "kn",
        "fts"
       ],
       "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-speed-unit-converter-d9b643b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentstoolshub.com](https://www.zero.xyz/host/agentstoolshub.com/llms.txt)