✓ AssemblyAI
APIs for real-time and pre-recorded speech-to-text, understanding, and voice agents.
Why we recommend them
AssemblyAI provides developer APIs for transcribing and understanding speech, including real-time and pre-recorded speech-to-text, a speech understanding API, and a voice agent API. It's built for developers and enterprises building voice features into products such as scribes, notetakers, call analytics, and conversational agents, with customers including Zoom and Siro.
✓Free sign-up tier plus usage-based pricing (per-minute API pricing detailed on pricing page)
✓Latest model, Universal-3.5 Pro, available for both real-time and pre-recorded audio
✓Offers self-hosted deployment option in addition to cloud API
What we actually verified
7.5/10 TrustScore—Money-back guarantee verified
✓Free trial available“…ch Benchmarks Security Voice AI infrastructure for builders Sign up free Contact sales Trusted by millions of developers, Assembl”
—Reachable customer service
✓No fine-print return conditions
✓No unrealistic claims detected
Vetted 2026-07-13 · How we vet →
Straight referral — we earn nothing from this link.
What real customers say
3.7/5 from 1 reviews on Trustpilot
Independent review excerpts via Trustpilot — refreshed automatically · last checked 2026-08-30. Ratings are shown as-is, good or bad.
Common questions about AssemblyAI
Is AssemblyAI legit and safe to buy from?
Yes — AssemblyAI passed the WhatiseBrokering.com vetting checklist (try before you buy, no fine-print returns, a real way to reach them, realistic claims only) before being listed. We remove companies that stop meeting the standard.
Can I try AssemblyAI before committing?
Yes — our vetting verified that AssemblyAI offers a free trial, so you can try before you pay. No fine-print traps were detected at the time of vetting.
How do I reach AssemblyAI if something goes wrong?
AssemblyAI publishes a real customer-service contact (phone or email) — that's a listing requirement. If you can't get a response, tell us at partnerships@whatisebrokering.com and we'll review their listing.
Why is AssemblyAI listed on WhatiseBrokering.com?
We discovered and vetted AssemblyAI ourselves. They don't pay us anything — they're listed purely because they meet the standard.
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