---
title: "Get HMAC development key"
method: GET
path: "/api/{projectId}/devkeys/hmac"
tags: ["Projects"]
---

# Get HMAC development key

`GET /api/{projectId}/devkeys/hmac`

## Request

- Base URL: `https://studio.edgeimpulse.com/v1`
- URL: `https://studio.edgeimpulse.com/v1/api/{projectId}/devkeys/hmac`
- Auth: one of:
  - API key in header `x-api-key`
  - API key in cookie `jwt`
  - API key in header `x-jwt-token`
  - OAuth 2
    - Authorization code: `/v1/oauth/authorize`
    - Client credentials
    - Implicit: `/v1/oauth/authorize`
    - Password
    - Token URL: `/v1/oauth/token`
- TypeScript: <https://skmtc.dev/edgeimpulse/apis/edge-impulse-api/docs/api/:projectId/devkeys/hmac/get.ts> (a function with typed inputs; its response is checked against the schema)

Retrieve the HMAC development key for a project.
This key is specifically marked to be used during development.
This key can be `undefined` if no development keys are set.

## Path parameters

- `projectId` integer, required

## Response `200`

OK

- GetHmacDevkeyResponse
  - `success` boolean, required: Whether the operation succeeded
  - `error` string: Optional error description (set if 'success' was false)
  - `hmacKey` string: HMAC Key

---

[API](https://skmtc.dev/edgeimpulse/apis/edge-impulse-api.md) - [All operations](https://skmtc.dev/edgeimpulse/apis/edge-impulse-api/llms.txt) - [OpenAPI document](https://skmtc.dev/edgeimpulse/apis/edge-impulse-api/revisions/e2a976d38427?raw)