Create an environment variable

POST/v1/environment-variablesCreate an environment variable

⚠️ Experimental endpoint: this API is in active development and may change at any time without notice. ⚠️

Creates a new environment variable in a project's production or preview environment, or a preview branch override when branchId is supplied. Returns 409 if a variable with the same key already exists in that scope — use PATCH to replace its value. Values are stored encrypted and are not returned by subsequent reads.

Request body

application/json

object

branchIdstring

pattern ^(br_)?([cC][^\s-]{8,}|[a-z0-9]+)$

classstringrequired

one of "production", "preview"

keystringrequired

maxLength 256 · minLength 1 · pattern ^[A-Z_][A-Z0-9_]*$

projectIdstringrequired

pattern ^(proj_)?([cC][^\s-]{8,}|[a-z0-9]+)$

valuestringrequired

minLength 1

Example request

{
  "branchId": "string",
  "class": "preview",
  "key": "string",
  "projectId": "string",
  "value": "string"
}

Responses

object

dataobjectrequired

Show child attributes

branchIdnull | stringrequired

classstringrequired

one of "production", "preview"

createdAtstring · date-timerequired

idstringrequired

isManagedBySystembooleanrequired

keystringrequired

projectIdstringrequired

typestringrequired

const "environment-variable"

updatedAtstring · date-timerequired

urlstring · urirequired

valueKidstringrequired

Example response

{
  "data": {
    "branchId": "string",
    "class": "preview",
    "createdAt": "2026-06-09T00:00:00Z",
    "id": "string",
    "isManagedBySystem": true,
    "key": "string",
    "projectId": "string",
    "type": "environment-variable",
    "updatedAt": "2026-06-09T00:00:00Z",
    "url": "https://example.com",
    "valueKid": "string"
  }
}

object

errorobjectrequired

Show child attributes

codestringrequired

hintstring

messagestringrequired

Example response

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

object

errorobjectrequired

Show child attributes

codestringrequired

hintstring

messagestringrequired

Example response

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

object

errorobjectrequired

Show child attributes

codestringrequired

hintstring

messagestringrequired

Example response

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

object

errorobjectrequired

Show child attributes

codestringrequired

hintstring

messagestringrequired

Example response

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

object

errorobjectrequired

Show child attributes

codestringrequired

hintstring

messagestringrequired

Example response

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

Examples

curl -X POST 'https://api.prisma.io/v1/environment-variables' \
  -H 'Content-Type: application/json' \
  -d '{"branchId":"string","class":"preview","key":"string","projectId":"string","value":"string"}'

const response = await fetch('https://api.prisma.io/v1/environment-variables', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"branchId":"string","class":"preview","key":"string","projectId":"string","value":"string"}),
});
const data = await response.json();

const response = await fetch('https://api.prisma.io/v1/environment-variables', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: "{\"branchId\":\"string\",\"class\":\"preview\",\"key\":\"string\",\"projectId\":\"string\",\"value\":\"string\"}" });
console.log(await response.json());

import requests

response = requests.request(
    "POST",
    "https://api.prisma.io/v1/environment-variables",
    headers={"Content-Type": "application/json"},
    data='{"branchId":"string","class":"preview","key":"string","projectId":"string","value":"string"}',
)
print(response.json())

package main

import (
	"context"
	"net/http"
	"strings"
)

func main() {
	ctx := context.Background()
	body := strings.NewReader(`{"branchId":"string","class":"preview","key":"string","projectId":"string","value":"string"}`)
	req, err := http.NewRequestWithContext(ctx, "POST", "https://api.prisma.io/v1/environment-variables", body)
	if err != nil {
		panic(err)
	}
	req.Header.Set("Content-Type", "application/json")
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
}

<?php
$request = curl_init("https://api.prisma.io/v1/environment-variables");
curl_setopt($request, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($request, CURLOPT_POSTFIELDS, "{\"branchId\":\"string\",\"class\":\"preview\",\"key\":\"string\",\"projectId\":\"string\",\"value\":\"string\"}");
curl_setopt($request, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
$response = curl_exec($request);
curl_close($request);

var request = HttpRequest.newBuilder(URI.create("https://api.prisma.io/v1/environment-variables"))
    .method("POST", HttpRequest.BodyPublishers.noBody())
    .header("Content-Type", "application/json")
    .method("POST", HttpRequest.BodyPublishers.ofString("{\"branchId\":\"string\",\"class\":\"preview\",\"key\":\"string\",\"projectId\":\"string\",\"value\":\"string\"}"))
    .build();
var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());

require 'net/http'

uri = URI("https://api.prisma.io/v1/environment-variables")
request = Net::HTTPGenericRequest.new("POST", true, true, uri)
request['Content-Type'] = 'application/json'
request.body = "{\"branchId\":\"string\",\"class\":\"preview\",\"key\":\"string\",\"projectId\":\"string\",\"value\":\"string\"}"
response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }

using var client = new HttpClient();
using var request = new HttpRequestMessage(HttpMethod.Post, "https://api.prisma.io/v1/environment-variables");
request.Content = new StringContent("{\"branchId\":\"string\",\"class\":\"preview\",\"key\":\"string\",\"projectId\":\"string\",\"value\":\"string\"}", Encoding.UTF8, "application/json");
using var response = await client.SendAsync(request);

{
  "data": {
    "branchId": "string",
    "class": "preview",
    "createdAt": "2026-06-09T00:00:00Z",
    "id": "string",
    "isManagedBySystem": true,
    "key": "string",
    "projectId": "string",
    "type": "environment-variable",
    "updatedAt": "2026-06-09T00:00:00Z",
    "url": "https://example.com",
    "valueKid": "string"
  }
}

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

{
  "error": {
    "code": "string",
    "hint": "string",
    "message": "string"
  }
}

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