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Reson8 Documentation

Getting Started

Welcome to the Reson8 API documentation. We provide speech-to-text infrastructure with real-time audio streaming and domain-specific model customization, in ten languages: Dutch, English, French, Frisian, German, Italian, Polish, Portuguese, Spanish, and Swedish.

Follow these steps to get from zero to your first transcript:

  1. Create an account

    Sign up at console.reson8.dev. From the console you can manage API clients and billing. New accounts start on a free plan with usage limits.

  2. Choose an endpoint

    Choosing an Endpoint helps you pick the right endpoint for your use case. You can try each one in the console playground before writing any code.

  3. Generate an API key

    In the console, create a client and generate an API key for it. See Authentication for how to use the key in your requests.

  4. Make your first request

    Call your endpoint of choice. For example, transcribing a file with the prerecorded endpoint:

    Terminal window
    curl -X POST "https://api.reson8.dev/v1/speech-to-text/prerecorded" \
      -H "Authorization: ApiKey <your_api_key>" \
      -H "Content-Type: application/octet-stream" \
      --data-binary @recording.wav

    The response contains the transcript:

    {
      "text": "the patient presented with chest pain and shortness of breath"
    }

  5. Go further

    Add speaker diarization, bias transcription toward your domain with custom models, recover structured tokens like order codes with patterns, or build a voice agent with the LiveKit integration.

Use the search bar at the top to find anything quickly. If you get stuck, we’re happy to help.

About Reson8

Section titled “About Reson8”

Reson8 is the speech-to-text provider built for complex terminology across European languages (including English). Where generic models mishear medication names, order numbers, or addresses, Reson8 adapts to your domain-specific terminology in real time or from a single text upload, no fine-tuning or audio samples needed. Teams use it for voice agents, medical scribes, meeting notetakers, contact center analysis, subtitling and captioning, legal transcription, and more.

Reson8 is highly suitable for regulated industries, as it owns and operates its own GPU stack in the Netherlands, with zero subprocessors, zero audio retention, and no training on customer data. Fully ISO 27001 certified and GDPR compliant.