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Keep your ElevenLabs API key on your Node.js server, store it as a managed secret, and send it to ElevenLabs only from the backend in the xi-api-key header. Never place the long-lived key in browser or mobile code, a frontend bundle, or a public repository. For production, use a dedicated service account and limit its permissions, credit use, and network access to what the app needs.
Keep the key behind a server-side boundary
An ElevenLabs API key grants API access and is used to track quota. Treat it as a secret: anyone who obtains it may be able to make requests under its permissions. ElevenLabs explicitly warns: “Your API key is a secret. Do not share it with others or expose it in any client-side code (browsers, apps).” ElevenLabs API Authentication documentation
A browser or mobile app should call your own backend, and that backend should make the ElevenLabs request. Do not embed the key in JavaScript delivered to a browser, an app package, or a frontend environment variable that is bundled for clients. If a client-side workflow must call an endpoint directly, check whether ElevenLabs offers a single-use token for that endpoint instead of exposing the long-lived API key.
Choose a key suited to the environment
Use a dedicated service account key for backend production workloads. Keep production and non-production credentials separate so a development deployment does not share the production credential. User keys inherit an individual’s access and are better suited to personal development or scripts; workspace administrators manage service accounts for backend systems and automation. ElevenLabs API Keys documentation ElevenLabs users and workspaces guide
#1 Best Overall
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| Key type | Identity and administration | Typical fit | Expiry |
|---|---|---|---|
| User key | Tied to an individual; settings are managed by that user. | Personal development or scripts. | Expiry can be set; ElevenLabs documents selectable presets from 15 minutes to 30 days. |
| Service account key | Managed by workspace administrators. | Backend workloads and automation, including production. | Does not expire; protect it and rotate it operationally. |
These distinctions and expiry options are described in ElevenLabs’ API Keys documentation; check the dashboard for current controls and labels.
Store the key as a managed secret
Use your deployment platform’s managed secret mechanism to inject the value into the Node.js process at runtime. ElevenLabs’ quickstart recommends a managed secret and shows an environment variable as the application interface; a local .env file can be convenient for development, but do not commit a populated one. ElevenLabs quickstart
Rank #2
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import { ElevenLabsClient } from "@elevenlabs/elevenlabs-js";
const apiKey = process.env.ELEVENLABS_API_KEY;
if (!apiKey) throw new Error("ELEVENLABS_API_KEY is not configured");
const elevenlabs = new ElevenLabsClient({ apiKey });The example reads a runtime value and gives it to the official @elevenlabs/elevenlabs-js SDK. The secret belongs in managed storage; the variable name can be ordinary application configuration. Do not log the key, include it in error messages, or return it to a client.
Limit what the key can do
Configure the narrowest supported scopes for the API capabilities the application calls, and set a credit quota to bound the authorized usage if the credential is misused. For an app that exposes voice resources to end users, enforce each user’s resource permissions in your own backend; possessing a valid provider key is not a substitute for application-level authorization. ElevenLabs security guidance
Rank #3
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If production requests leave through stable public IP addresses, add those addresses to the key’s allowlist. Requests from other IPs are rejected with 403. ElevenLabs accepts public IP addresses for this setting, not private IP ranges, so confirm the actual public egress address used by the deployment. ElevenLabs API Keys documentation ElevenLabs API Authentication documentation
Rotate keys without interrupting the app
- Create a replacement key for the same service account with the required permissions and restrictions.
- Update the managed deployment secret and deploy or restart the Node.js app so it reads the replacement.
- Confirm the application is using the replacement successfully, then delete the old key.
Do not remove the working key before the replacement is active; that creates an avoidable outage. ElevenLabs documents that expired user keys stop authenticating and return 401. ElevenLabs API Authentication documentation
Rank #4
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- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Respond quickly if a key leaks
- Disable the exposed key as soon as possible.
- Issue a replacement with only the permissions the app needs, update the deployment secret, and confirm the service is working.
- Investigate where the key escaped, remove it from the exposed location where possible, and check for unexpected usage.
For a public GitHub commit, ElevenLabs says its integration with GitHub secret scanning may automatically disable a publicly committed key when third-party disabling is allowed. Do not assume this covers private repositories or other leak locations. ElevenLabs also documents a self-disable endpoint that requires api_key_name=self. ElevenLabs API Keys documentation ElevenLabs API Authentication documentation
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
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- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
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