---
title: "Constantes physiques fondamentales et leurs valeurs / Fundamental physical constants and their values"
method: GET
path: "/constantes_physiques"
tags: ["Données nucléaires"]
---

# Constantes physiques fondamentales et leurs valeurs / Fundamental physical constants and their values

`GET /constantes_physiques`

## Request

- Base URL: `https://api.asnr.fr` (the document declares no server; this is the origin it was published from)
- URL: `https://api.asnr.fr/constantes_physiques`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/asnr/apis/api-me-tiers-asnr/docs/constantes_physiques/get.ts> (a function with typed inputs; its response is checked against the schema)

## Response `200`

Successful Response

- ConstantesPhysiques[]
  - `quantity_en` string, required: Nom de la quantité physique en anglais
  - `quantity_fr` string, required: Nom de la quantité physique en français
  - `symbol` string, required: Symbole de la constante physique
  - `value` string, required: Valeur de la constante physique
  - `unit` string, required: Unité de la constante physique
  - `relative_uncertainty` string, required: Incertitude relative
  - `category` string, required: Catégorie de la constante
  - `source` string, required: Code de la source de données
  - `source_description` string, nullable, required: Description de la source de données
  - `lien_url` string, nullable, required: URL vers la source de données

## Other responses

- `404`: Not found

---

[API](https://skmtc.dev/asnr/apis/api-me-tiers-asnr.md) - [All operations](https://skmtc.dev/asnr/apis/api-me-tiers-asnr/llms.txt) - [OpenAPI document](https://skmtc.dev/asnr/apis/api-me-tiers-asnr/revisions/21928cc07b98?raw)