# AssemblyAI Homepage

AssemblyAI is Voice AI infrastructure for developers building products that transcribe, understand, and act on speech.

Canonical URL: https://www.assemblyai.com/

## Primary Message

AssemblyAI provides production-grade APIs for speech-to-text, real-time transcription, Voice Agent API, Speech Understanding, Guardrails, and LLM Gateway. The platform is designed for teams that need accurate speech recognition, scalable infrastructure, and developer-friendly APIs.

## Core Products

- Pre-recorded Speech-to-Text API for recorded audio and video transcription.
- Real-time Speech-to-Text API for live audio, voice agents, captions, and agent assist.
- Voice Agent API for speech-to-speech agents over a single WebSocket.
- Speech Understanding API for structured insights from transcripts.
- Guardrails for PII redaction, profanity filtering, and content moderation.
- LLM Gateway for applying frontier language models to voice workflows.

## Best Next Links

- https://www.assemblyai.com/products.md
- https://www.assemblyai.com/products/speech-to-text.md
- https://www.assemblyai.com/products/streaming-speech-to-text.md
- https://www.assemblyai.com/products/voice-agent-api.md
- https://www.assemblyai.com/pricing.md
- https://www.assemblyai.com/docs/llms.txt