Api Endpoint

touchstone.locomot.io

Deterministic unit conversion reproducing NIST SP 811 exact factors (length, mass, volume, energy, power, pressure, force, area, speed, data, angle, frequency + affine temperature). Every answer signed. Free sample, no payment required: GET /play/unit

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Offering

Provider: touchstone.locomot.io
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: General Utilities
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://touchstone.locomot.io/unit
MIME type: application/json
First seen: 2026-10-16T01:50:53.972Z
Last seen: 2026-11-02T09:37:40.085Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0xa3091005a76b1480F1897a9D0C2e1c55B7767674"
  }
]

Observed health

Status: Healthy
Latest latency: 325 ms
Average latency: 524 ms
HTTP status: 402
Last checked: 2026-11-02T09:37:40.079Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "value": {
          "type": "number",
          "description": "quantity to convert"
        },
        "from": {
          "type": "string",
          "description": "source unit (name or alias, e.g. mile, kg, °C)"
        },
        "to": {
          "type": "string",
          "description": "target unit (same dimension)"
        }
      },
      "required": [
        "value",
        "from",
        "to"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "op": {
      "type": "string"
    },
    "value": {
      "type": "number"
    },
    "from": {
      "type": "string"
    },
    "to": {
      "type": "string"
    },
    "dimension": {
      "type": "string"
    },
    "result": {
      "type": "number"
    },
    "conversion_factor": {
      "type": "number"
    },
    "exact": {
      "type": "boolean"
    },
    "source": {
      "type": "string"
    },
    "conversion_factor_ratio": {
      "type": "string"
    }
  }
}