Vetted & Ranked
Best Vetted Speech-to-Text API for Voice AI Companies in 2026
✓ Independently vetted by the WhatiseBrokering team · Last updated July 21, 2026
Every company below passed our vetting checklist — try before you buy or a real money-back guarantee, no fine-print returns, and a human you can reach. TrustScores reflect what we actually verified, not what companies claim.
🏆 Best Choice in 2026
✓ Speechmatics | AI Voice Agents
✓ VettedReal-time, speaker-aware speech recognition API built to power AI voice agents.
Why we like them
✓Free tier with up to 3,480 free minutes/month, no credit card required
✓Sub-second real-time transcription with speaker diarization across 56+ languages
✓Native integrations with LiveKit, Vapi, and Pipecat; usage-based pricing that scales
What we verified
—Money-back guarantee verified
✓Free trial available
✓Reachable customer service
✓No fine-print return conditions
✓No unrealistic claims detected
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