Api Endpoint

Agent Utility Suite

Psychrometric calculator for HVAC engineering: from any two of dry bulb, wet bulb, dew point, RH, humidity ratio, enthalpy or grains, the full moist-air state (plus specific volume, density, vapor pressure) at any elevation, IP or SI. ASHRAE Fundamentals 2021 equations, cross-checked against PsychroLib. Shows every step with the numbers and ASHRAE references. $0.002 USDC per call.

Open interactive test console

Offering

Provider: x402-agent-api.onrender.com
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: General Utilities
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://x402-agent-api.onrender.com/api/v1/hvac-psychrometrics
MIME type: Not provided
First seen: 2026-10-16T01:50:38.788Z
Last seen: 2026-11-01T15:05:36.808Z
Tags: hvac, psychrometrics, engineering, mechanical-engineering, ashrae

Website

Payment pricing

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

Payment option 1: 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC"
  }
]

Observed health

Status: Healthy
Latest latency: 272 ms
Average latency: 566 ms
HTTP status: 204
Last checked: 2026-11-02T08:02:31.767Z
Reachability: 100% over 8 checks

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

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "dew_point": {
          "description": "Dew-point temperature, °F or °C.",
          "type": "number"
        },
        "dry_bulb": {
          "description": "Dry-bulb temperature, °F (IP) or °C (SI).",
          "type": "number"
        },
        "elevation": {
          "default": 0,
          "description": "Site elevation, ft (IP) or m (SI); sets the atmospheric pressure. Default 0 (sea level).",
          "maximum": 30000,
          "minimum": -1500,
          "type": "number"
        },
        "enthalpy": {
          "description": "Enthalpy: BTU per lb dry air (IP) or kJ/kg dry air (SI).",
          "type": "number"
        },
        "grains": {
          "description": "Moisture in grains per lb dry air (gr/lb), in either unit system (7,000 gr = 1 lb).",
          "minimum": 0,
          "type": "number"
        },
        "humidity_ratio": {
          "description": "Humidity ratio: lb water per lb dry air (IP, e.g. 0.0100) or g/kg (SI, e.g. 10.0).",
          "minimum": 0,
          "type": "number"
        },
        "relative_humidity": {
          "description": "Relative humidity, % (0-100).",
          "maximum": 100,
          "minimum": 0,
          "type": "number"
        },
        "units": {
          "default": "IP",
          "description": "\"IP\" (°F, CFM, in, BTU) or \"SI\" (°C, L/s, mm, kW). Default IP. Applies to inputs and results.",
          "enum": [
            "IP",
            "SI"
          ],
          "type": "string"
        },
        "via": {
          "description": "Optional: the tool whose next_calls suggested this call (filled in for you).",
          "maxLength": 64,
          "type": "string"
        },
        "wet_bulb": {
          "description": "Wet-bulb temperature, °F or °C.",
          "type": "number"
        }
      },
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}