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POST/api/v1/feature-flags

Set a feature flag

Creates or updates a feature flag. Mass-assignment-safe (ADR-0017).

Authentication

Send Authorization: Bearer YOUR_API_KEY on every request. Generate API keys at /dashboard/api-keys.

Request body required

Example

{
  "key": "string",
  "description": "string",
  "enabled": false,
  "org_ids": [
    "00000000-0000-0000-0000-000000000000"
  ],
  "rollout_percentage": 0,
  "metadata": {}
}
Schema
{
  "application/json": {
    "schema": {
      "type": "object",
      "properties": {
        "key": {
          "type": "string",
          "minLength": 1,
          "maxLength": 255
        },
        "description": {
          "type": "string",
          "maxLength": 2000
        },
        "enabled": {
          "type": "boolean"
        },
        "org_ids": {
          "maxItems": 1000,
          "type": "array",
          "items": {
            "type": "string",
            "format": "uuid",
            "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
          }
        },
        "rollout_percentage": {
          "nullable": true,
          "type": "integer",
          "minimum": 0,
          "maximum": 100
        },
        "metadata": {
          "type": "object",
          "additionalProperties": {}
        }
      },
      "required": [
        "key"
      ],
      "additionalProperties": false
    }
  }
}

Response

200 example

{
  "success": true
}

All status codes

200Flag set.
400(no description)
401(no description)
403Forbidden — insufficient role for this operation.
429(no description)

Code samples

cURL

curl -X POST \
  https://evalguard.ai/api/v1/feature-flags \
  -H "Authorization: Bearer $EVALGUARD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "key": "string", "description": "string", "enabled": false, "org_ids": [ "00000000-0000-0000-0000-000000000000" ], "rollout_percentage": 0, "metadata": {} }'

TypeScript

import { EvalGuard } from "@evalguard/sdk";

const client = new EvalGuard({ apiKey: process.env.EVALGUARD_API_KEY });

const response = await client.request({
  method: "POST",
  path: "/api/v1/feature-flags",
  body: {
    "key": "string",
    "description": "string",
    "enabled": false,
    "org_ids": [
      "00000000-0000-0000-0000-000000000000"
    ],
    "rollout_percentage": 0,
    "metadata": {}
  },
});
console.log(response);

Python

from evalguard import EvalGuard
import os

client = EvalGuard(api_key=os.environ["EVALGUARD_API_KEY"])

response = client.request(
    method="POST",
    path="/api/v1/feature-flags",
    body={
    "key": "string",
    "description": "string",
    "enabled": False,
    "org_ids": [
        "00000000-0000-0000-0000-000000000000"
    ],
    "rollout_percentage": 0,
    "metadata": {}
},
)
print(response)

Go

package main

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

func main() {
	body := strings.NewReader(`{"key":"string","description":"string","enabled":false,"org_ids":["00000000-0000-0000-0000-000000000000"],"rollout_percentage":0,"metadata":{}}`)
	req, _ := http.NewRequestWithContext(context.Background(), "POST", "https://evalguard.ai/api/v1/feature-flags", body)
	req.Header.Set("Authorization", "Bearer "+os.Getenv("EVALGUARD_API_KEY"))
	req.Header.Set("Content-Type", "application/json")
	resp, err := http.DefaultClient.Do(req)
	if err != nil { panic(err) }
	defer resp.Body.Close()
	fmt.Println(resp.Status)
}

Errors

400401403429

Other Admin endpoints