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GET /v1/meta

Spec

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10 llamadas gratis al día — sin registro, sin clave API. Pasa por el gateway de oanor.

Encabezados personalizados (opcional)
api.oanor.com/vaporpressure-api

Funciona. Consigue una clave API y úsala en tu proyecto.

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Fragmentos de código

curl "https://api.oanor.com/vaporpressure-api/v1/meta" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/vaporpressure-api/v1/meta", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/vaporpressure-api/v1/meta");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/vaporpressure-api/v1/meta",
    headers={"x-oanor-key": "oanor_test_..."}
)

Respuesta de ejemplo

Una respuesta real de este endpoint, capturada en la última comprobación de estado.

{
    "data": {
        "notes": "Clausius–Clapeyron uses kelvin; Antoine defaults to water constants with °C and mmHg. R = 8.314462618 J/(mol·K).",
        "service": "vaporpressure-api",
        "constants": {
            "default_antoine_water": {
                "A": 8.07131,
                "B": 1730.63,
                "C": 233.426
            },
            "gas_constant_j_per_mol_k": 8.314462618
        },
        "endpoints": {
            "GET /v1/meta": "This document.",
            "GET /v1/antoine": "Antoine equation: temperature→pressure, or pressure→boiling temperature.",
            "GET /v1/enthalpy": "Molar enthalpy of vaporization from two (P,T) points.",
            "GET /v1/clausius-clapeyron": "Predict vapor pressure P2 at T2 from a reference (P1,T1) and ΔHvap."
        },
        "description": "Vapor pressure thermodynamics: Clausius–Clapeyron prediction, enthalpy of vaporization from two points, and the Antoine equation both ways."
    },
    "meta": {
        "timestamp": "2026-06-05T19:50:32.552Z",
        "request_id": "81f716ac-8ced-4f0f-a32d-538dde1ff449"
    },
    "status": "ok",
    "message": "Meta",
    "success": true
}