Build powerful voice-driven features without compromising on privacy, sustainability or European data sovereignty. The GreenPT Speech-to-Text API gives you blazing-fast, multilingual and highly accurate transcription, fully EU-hosted, fully green and designed for developers who want full control over their data.
GreenPT Speech-to-Text API for developers
For any developer building voice-powered products in Europe
If your product depends on speech recognition, and you need accuracy, speed and guaranteed EU sovereignty, GreenPT is for you.
Turn audio into insight
Speed matters. Accuracy matters. But so does the impact behind the technology you ship. With GreenPT, you get all three.
- 100% renewable energy infrastructure
Every transcription runs on renewable power, reducing the CO₂ impact of your product without sacrificing performance. - EU-based hosting for true data sovereignty
Your audio stays inside European borders. No transfers, no loopholes, no offshore processing. - Multilingual transcription that just works
From Dutch and English to Spanish, French and Italian — perfect for global products built in Europe. - Batch or real-time? You choose.
Whether you’re transcribing prerecorded audio or powering live captions, performance stays consistently fast.
Ready for fast, accurate and truly sustainable Speech-to-Text?
Start with GreenPT today and build voice features that are fast, powerful and future-proof.
EU Hosted Sustainable Privacy
Privacy Infrastructure
We believe in complete transparency about our data practices. You have full control over your data and can exercise all your privacy rights at any time.
Advanced Encryption
All data is encrypted in transit and at rest using industry-standard AES-256 encryption. Your conversations are protected from the moment they leave your device.
Security Certifications
Our infrastructure maintains ISO 27001 and SOC2 Type II certifications, ensuring the highest standards of information security and data protection.
Privacy Monitoring
Continuous monitoring and audit trails ensure complete transparency in how your data is handled, with regular compliance reviews and security assessments.
Minimal Data Collection
We only collect the absolute minimum data necessary to provide our AI services.
Your Rights Respected
Full GDPR compliance means you can access, correct, delete, or port your data at any time. Your privacy rights are not just respected but actively protected.
Open Source Models
We use open-source AI models that can be audited and verified. No black box algorithms or hidden data processing.
All about our Speech-to-Text API
Is the Speech-to-Text API fully hosted in the EU?
Yes. All models run on GreenPT’s own EU infrastructure. Your audio and transcripts never leave European borders, making the API fully sovereign and GDPR-compliant.
Do you store or retain any of my audio?
No. Audio is processed, transcribed, and immediately discarded. We do not retain data, and we never use customer data to train models.
Is the API compatible with OpenAI or Deepgram endpoints?
Yes. The API structure is intentionally familiar so you can migrate from OpenAI, Deepgram or similar STT providers with minimal changes to your code.
Does the GreenPT API support multiple speakers?
Yes. Speaker diarization lets you automatically detect who is speaking. Ideal for meetings, calls, interviews and podcasts.
What makes GreenPT more sustainable than other Speech-To-Text providers?
GreenPT runs entirely on renewable energy, with ultra-efficient hardware and fully green hosting. This significantly reduces the carbon footprint of every transcription.