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Developer Guides

API tutorials, integration patterns, code examples

Developer migrating from OpenAI Realtime API to private flat-rate streaming speech-to-text
Developer Guides 8 min read

Migrating Off OpenAI Realtime API: A Developer's Guide to Private, Flat-Rate Streaming STT

I've migrated 4 voice agents off OpenAI Realtime API. Here's the SDK swap, 400+ hr/month cost math, and which migration path to pick.

Sarah Mitchell
Speech-to-Text API Rate Limits: Concurrency, Quotas, and What Breaks at Scale
Developer Guides 5 min read

Speech-to-Text API Rate Limits: Concurrency, Quotas, and What Breaks at Scale

Rate limits kill speech-to-text pipelines before cost or accuracy ever matter. I've stress-tested six providers under load and mapped what breaks at scale.

Sarah Mitchell
Speech-to-Text for Mobile Apps: On-Device vs API Transcription Compared
Developer Guides 5 min read

Speech-to-Text for Mobile Apps: On-Device vs API Transcription Compared

I've shipped voice into six mobile apps. Here's when on-device Whisper beats a cloud API — and when fixed-rate private transcription wins on battery, privacy, and cost.

Sarah Mitchell
Batch transcription API pipeline with audio preprocessing and retry workflow
Developer Guides 5 min read

Batch Transcription API Best Practices: Preprocessing, Retries, and Cost Control

I've debugged batch STT pipelines that failed 40% of files. Here's the FFmpeg preprocessing, retry logic, and cost controls I use in production.

Sarah Mitchell
Developer terminal on laptop running curl to upload audio for speech-to-text transcription
Developer Guides 8 min read

Speech-to-Text API with cURL: Transcribe Audio from the Command Line

Transcribe audio with cURL and Privocio's speech-to-text API. Batch uploads, OpenAI-compatible routes, and SSE streaming from your terminal or CI pipeline.

Sarah Mitchell
JavaScript developer workspace with code editor and desktop microphone for speech-to-text API integration
Developer Guides 11 min read

JavaScript Speech-to-Text API: Transcribe Audio with fetch and the OpenAI Node SDK

Learn how to use a JavaScript speech-to-text API with fetch, FormData, the OpenAI Node SDK, SSE streaming, and Privocio's private STT infrastructure.

Sarah Mitchell
Python Speech-to-Text API tutorial with httpx code example and Privocio transcription workflow
Developer Guides 12 min read

Python Speech-to-Text API: Transcribe Audio Files with Privocio

Learn how to use a Python speech-to-text API to transcribe audio files with httpx, Bearer authentication, Whisper-compatible models, and Privocio's private STT infrastructure.

Sarah Mitchell
Go developer workspace with terminal and code editor for speech-to-text API integration
Developer Guides 9 min read

Go Speech-to-Text API: Transcribe Audio with the OpenAI Go SDK

Transcribe audio in Go using the OpenAI Go client with a Privocio base URL. Whisper-compatible batch transcription for backend services and AI agents.

Sarah Mitchell
Async Transcription with Webhooks: How to Process Audio at Scale Without Polling
Developer Guides 5 min read

Async Transcription with Webhooks: How to Process Audio at Scale Without Polling

I've shipped async transcription pipelines handling 800+ hours of audio daily. Here's the webhook architecture, retry logic, and idempotency that work at scale.

Sarah Mitchell

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