> ## Documentation Index
> Fetch the complete documentation index at: https://assemblyai.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# How do we securely use your service?

Our service is reached over TLS by connecting to our API hostnames, such as `api.assemblyai.com` for REST, `streaming.assemblyai.com` for streaming, and `llm-gateway.assemblyai.com` for LLM Gateway (with `*.eu.assemblyai.com` equivalents for the EU region). All connections use HTTPS or WSS (WebSocket over TLS) so that traffic is encrypted in transit.

If your network requires allowlisting fixed IP addresses for inbound webhook deliveries or audio retrieval requests, see [What IP Address Should I Whitelist for AssemblyAI?](/faq/what-ip-address-should-i-whitelist-for-assemblyai).

Outputs are text payloads, so conducting file scanning on responses at the corporate firewall can be useful in maintaining a strong security posture while using our services.