One API. Every Speech-to-Text Model.
Speechall is a unified speech-to-text API for developers. Compare transcription models from OpenAI, Deepgram, AssemblyAI and more, then switch models through one integration and credit balance.
Compare model prices, languages and features · Explore streaming transcription
Supported Providers
Developer Experience First
Switch STT Models Instantly
Different accents and environments impact accuracy. Test them all with one API.
No Vendor Lock-In
Switch providers just by changing the model name.
OpenAI-Compatible API
Use the OpenAI-compatible transcription endpoint with a supported Speechall model ID.
Unified Billing & Simple Pricing
One invoice, transparent cost.
Integration
Drop-in compatibility with your existing stack.
Send Audio
Stream or upload files via REST or WebSocket.
Normalize
We standardize the response format across all providers.
Switch
Change model param to swap providers instantly.
curl -X POST "https://api.speechall.com/v1/transcribe?model=deepgram.nova-3" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H 'content-type: audio/*' \
--data-binary "@/path/to/audio.wav"Unified Billing
Buy prepaid credits in one account and use them across supported transcription models. Each request deducts usage from your balance.
- ✓Review model usage rates and credit purchase fees before you pay
- ✓Centralized usage dashboard
- ✓Single API key management
Provider Cost
Passthrough pricing from OpenAI, Gemini, etc.
5% Credit Purchase Fee
Minimum fee €0.80. Your billing quote shows the current fee, exchange rate and credits before checkout.
Built for Scalable Workflows
Media Content Analysis & Monitoring
Accurately transcribe and analyze audio/video content for media monitoring, brand sentiment tracking, and content discovery. Ideal for media analysts and marketing teams.
Interview & Meeting Transcription
Compare transcription models for interviews and meetings. Check speaker labels, timestamps, and provider data-handling terms for your workflow.
Voice-Powered Enterprise Applications
Add dictation and voice commands to your application. Compare models on the accents, languages, and audio conditions your users encounter.
Customer Experience Enhancement
Analyze transcribed customer support calls to understand sentiment, identify common issues, and improve agent training for call centers and CX teams.
Trusted by Builders
Dictop
Professional dictation app using our API to deliver accurate transcriptions across multiple STT engines.
Visit websiteDopdock
Automation app with voice-based commands and dictation with complex workflows.
Visit websiteBuilding something cool?
Submit your appReady to build?
Create an account, review your credits, and test transcription with your own audio.
From model comparison to your first transcript
- Create a Speechall account and create an API key in the console.
- Review your credit balance and purchase quote. Usage draws down prepaid credits; checkout shows purchase fees and conversion.
- Test models with your own audio in the playground, then follow the API quickstart.