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Thanks for reaching out, Sumiya. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.

out of multiple api key secret pair, what combination does livekit choose when it automatically ingests

LIVEKIT_URL

,

LIVEKIT_API_KEY

, and

LIVEKIT_API_SECRET

Hi there! Just to help clarify, LiveKit automatically injects the

LIVEKIT_URL

,

LIVEKIT_API_KEY

, and

LIVEKIT_API_SECRET

environment variables during deployment. These are specifically linked to your LiveKit Cloud project and can’t be changed or set manually as custom secrets. If you have multiple API key-secret pairs, LiveKit doesn’t pick between them on its own. Instead, it uses the particular pair tied to those injected environment variables. Here’s how it works: 1. If you provide values explicitly in your code (like through constructor parameters), LiveKit will use those. 2. If not, it falls back to the environment variables

LIVEKIT_URL

,

LIVEKIT_API_KEY

, and

LIVEKIT_API_SECRET

. If anything’s still unclear or if you’d like a hand with this, please don’t hesitate to reach out—I’m here to help! Sources: agents/src/worker.ts | livekit-api/livekit/api/livekit_api.py | Secrets management | LiveKit Docs | Secrets management | LiveKit Docs

is it recommended to hard code these variables explicitely in the code? If not, do I need to worry about matching the

LIVEKIT_API_KEY

, and

LIVEKIT_API_SECRET the agent is using vs the LIVEKIT_API_KEY, and LIVEKIT_API_SECRET that my client side functions are using

I wanted to share a helpful tip: it’s best to avoid hard coding your

LIVEKIT_API_KEY

and

LIVEKIT_API_SECRET

directly in your code. Instead, try storing these credentials as environment variables to keep them safe and out of your version control. For local development, using a

.env.local

file is a great approach—just be sure to add it to your

.gitignore

to prevent any accidental exposure. About matching credentials: • Agents and client-side functions should use matching API keys and secrets only if they’re connecting to the same LiveKit project. • Usually, client-side functions work with access tokens (which are generated from the API key and secret) rather than the raw keys themselves, while agents or backend services use the API key and secret directly. For LiveKit Cloud deployments, the

LIVEKIT_API_KEY

,

LIVEKIT_API_SECRET

, and

LIVEKIT_URL

are automatically set as environment variables, helping to keep authentication secure and consistent for agents. If you have any questions or need a hand with this, just let me know—I’m here to help! Sources: Secrets management | LiveKit Docs | agent-console/lib/livekit-utils.ts | livekit-agents/livekit/agents/jupyter.py

i have a server side function that’s generating the access token. That function uses

LIVEKIT_API_KEY

,

LIVEKIT_API_SECRET

, and

LIVEKIT_URL

When you're setting up your server-side function to generate access tokens using

LIVEKIT_API_KEY

,

LIVEKIT_API_SECRET

, and

LIVEKIT_URL

, here are some helpful best practices to keep in mind: • Store credentials securely: It’s a great idea to use environment variables for these values instead of hardcoding them directly in your code. This keeps your keys safe and your app more secure. • Validate environment variables: Double-check that your API key, secret, and URL are properly defined when your app runs to avoid any unexpected hiccups. • Set short token TTL: Keeping the token’s time-to-live short (like 5–15 minutes) helps reduce the chance of tokens being misused. • Ensure unique participant identities: Make sure each participant gets a unique identity to prevent any mix-ups. • Grant least privilege: Assign only the permissions necessary for each participant’s role—this keeps things secure and tidy. • Prevent caching: Turn off caching on your token endpoints so every request gets a fresh token. • Validate input parameters: Before generating tokens, it’s important to confirm that all required parameters (like room and identity) are present and valid. • Use HTTPS: Always serve your token generation endpoint over HTTPS and protect it from unauthorized access for added security. • Return token and server URL: Don’t forget to include the

LIVEKIT_URL

along with the token in your response—this helps the frontend connect smoothly. If any of these points are unclear or if you’d like a hand implementing them, just let me know—I’m here to help! Sources: examples/rpc/api.ts | Next.js quickstart | LiveKit Docs | client/web/src/app/api/token/route.ts | app/api/token/route.ts | web/app/api/connection-details/route.ts

my question is those api key & secrets used in the generate token function need to match with the api key secret pair the agent is running on to let them join the same room? How do I ensure that if the agent is automatically getting api key & secret during the deployment

Hi there! Just a quick note to help you out: the API key and secret you use in your token generation function need to match the ones the agent uses to join the same room. LiveKit checks access tokens by verifying the API key (as the issuer) and the API secret to securely sign and validate JWTs. If these don’t match, the token validation will unfortunately fail. To keep things smooth when your agent automatically gets its API key and secret during deployment, here are a few friendly tips: • Make sure to use the same environment variables (

LIVEKIT_API_KEY

,

LIVEKIT_API_SECRET

) for both your token generation service and the agent deployment. • Pass these credentials safely using environment variables or a secrets management system like Kubernetes secrets or AWS Secrets Manager. • Double-check that all parts of your setup (frontend, backend, and agent workers) are using the same credentials to connect with the LiveKit server. If you’d like me to walk you through this or if anything feels unclear, please don’t hesitate to reach out—I’m here to help! Sources: livekit-api/tests/test_access_token.py | livekit-plugins/livekit-plugins-bithuman/livekit/plugins/bithuman/avatar.py | rover/auth.py | spec/livekit/token_verifier_spec.rb

can I define the api key and secret before the agent deployment instead of automatically getting new api key and secret during deployment

Thanks for reaching out! I wanted to share that the API key and secret used by agents in LiveKit Cloud are automatically generated for you—they can’t be manually set before deployment. The credentials (

LIVEKIT_API_KEY

,

LIVEKIT_API_SECRET

, and

LIVEKIT_URL

) are securely created by LiveKit Cloud and seamlessly injected into the agent’s environment when it runs. This helps keep everything safe and running smoothly. If you try to set these values yourself, they won’t take effect. Please feel free to ask if you have any more questions or need a hand with anything else—I’m here to help! Sources: cmd/lk/agent.go | Secrets management | LiveKit Docs

if I have multiple key secret pairs, which one does the deployed agent use?

Could you please let me know if the multiple API key-secret pairs are all connected to the same LiveKit project? Understanding this will really help us figure out how the deployed agent chooses which pair to use. I'm here to help you through this!

they are all connected to the same livekit project

I don't have the answer you're looking for. You could also try asking your question: • in one of the other Slack channels or • to https://deepwiki.com/livekit/livekit_composite which is trained on all LiveKit source code If you find the answer, please post it here to help others!