Speechmatics exposes a flexible REST and WebSocket API that supports both real-time (streaming) and batch transcription workflows, including a micro-batching pattern for bridging the two paradigms. Its architecture allows deployment across cloud, on-premises, and on-device environments — enabling edge inference on hardware as constrained as a laptop, as demonstrated in the Adobe Premiere integration. The platform offers native integrations with popular agent frameworks (e.g., LiveKit), a Medical Model that cuts errors on clinical terminology by up to 50%, and speaker-diarization for multi-speaker conversations. Response format is structured JSON, and the API supports rich configuration including language selection, speaker labels, and custom vocabulary.