AI API Router Directory

Speechmatics is a speech-to-text API (real-time WebSocket and async batch) with NLP insights (summaries, intents, sentiment). Self-serve Free and Pro plans: new sign-ups get a $100 credit grant (1 credit = $1) with no card required; Pro adds pay-as-you-go billing with volume discounts above 500 hours/month; Enterprise is contract-based with on-prem/on-device deployment. Rates start around $0.129/hr (2026 pricing page snippet); legacy free tier was 8 hours/month.

Official docs: new sign-ups receive a $100 credit grant at no cost (1 credit = $1 USD), usable on Free at no charge and drawn down first on Pro — direct 1:1 credit value. (Pre-Accounts before 2026-08-01 receive an additional one-time $25 transition credit.)