# Saylor Innovations Speed Converter

> Saylor Innovations Speed Converter is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Converts a speed value between mph, km/h, m/s, knots, and ft/s, returning the result plus all equivalent values in every other unit

## Facts

- Endpoint: GET https://saylorinnovations.com/api/convert/speed?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-speed-converter-993ffbfc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5dWONvKskme3KvL2WxcQO

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 saylor-innovations-speed-converter-993ffbfc
```

Example prompt: Convert 75 mph to km/h and show me the equivalent values in knots and m/s as well.

## When to prefer this

Choose this endpoint when you need to convert speed values between standard units (mph, km/h, m/s, knots, ft/s) and want all equivalent values returned in a single call without building your own conversion logic. Ideal for aviation, meteorology, transportation, and sports contexts where multiple unit systems are in play simultaneously.

## Known failure modes

- Missing required query parameters (value, from, or to) returns an error
- Unsupported unit strings cause a bad-request or unrecognized-unit error
- Non-numeric value parameter causes a parsing or validation error
- Identical from and to units returns the same value (not an error, but trivial)

## How this service works

Speed converter - convert between mph, km/h, m/s, knots and ft/s with all equivalents

## Output

A JSON object containing the numeric result of the conversion, the original value and units, the target unit, a formula string describing the conversion, a category label, and an 'equivalents' map with the speed expressed in every other supported unit (mph, km/h, m/s, knots, ft/s).

## 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": {
       "type": "string",
       "description": "Unit to convert to"
      },
      "from": {
       "type": "string",
       "description": "Unit to convert from"
      },
      "value": {
       "type": "string",
       "description": "Number to convert"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "result",
      "from",
      "to"
     ],
     "properties": {
      "to": {
       "type": "string",
       "description": "End of the range"
      },
      "from": {
       "type": "string",
       "description": "Start of the range"
      },
      "units": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "Units of measure"
      },
      "value": {
       "type": "number",
       "description": "Value of the requested item"
      },
      "result": {
       "type": "number",
       "description": "Result of the operation"
      },
      "formula": {
       "type": "string",
       "description": "Formula used for the calculation"
      },
      "category": {
       "type": "string",
       "description": "Category"
      },
      "checked_at": {
       "type": [
        "string",
        "null"
       ],
       "description": "Time the check was run (UTC)"
      },
      "equivalents": {
       "type": "object",
       "description": "Equivalent values in other units"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-speed-converter-993ffbfc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)