Engineering
Tutorials, SDK and framework integration guides, and architecture deep-dives for developers building on the Speechify API.
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Engineering Build a Slack bot that reads messages aloud with the Speechify API
Build a Slack bot that reads channel messages aloud with the Speechify API. Wire events, synthesize audio, and post the clip back to the channel.
Engineering Turn any webpage into an audiobook with the Speechify TTS API
Give the Speechify text-to-speech API a URL and the page comes back as narrated audio. Fetch, extract the article text, chunk on sentence boundaries, synthesize each chunk with POST /v1/audio/speech.
Engineering Voice Agent Tool Calls: What to Run Inline and What to Hand Off
A voice agent's tool call happens inside a turn the caller is waiting through, which makes it a latency decision before it is an architecture one. The rule: reads that return fast run inline, writes and slow lookups get a receipt and finish asynchronously.
Engineering Adding Text-to-Speech to a Web or Mobile App: The Practical Guide
What engineers actually use to add voice to web and mobile apps, and the four decisions that matter: the browser's built-in API versus a cloud one, streaming versus batch, where the key lives, and how to keep audio playing on iOS.
Engineering Multilingual voiceover with the Speechify API and simba-3.0
Generate the same script in English, German, Spanish, French, Italian, and Portuguese with the Speechify TTS API. Pick a simba-3.0 voice for each locale, call POST /v1/audio/speech per language, keep the key server-side.
Engineering Speech generation in the Vercel AI SDK with Speechify
The AI SDK ships generateSpeech() but no Speechify provider. So we wrote one: a dependency-free custom speech model that maps POST /v1/audio/speech onto the SDK's SpeechModelV4 interface, key held server-side in a Next.js route.
Engineering Building an AI Voice Cloning Web App with Next.js and Speechify
Clone a voice from a browser upload, synthesize speech with it, and keep your API key server-side. A working Next.js voice cloning app built on the Speechify API, no GPU required.
Engineering Streaming TTS directly to the browser with Web Audio API
Stream Speechify TTS as raw PCM, keep the API key server-side, and schedule each chunk into the browser's Web Audio API for low-latency playback.
Engineering Add a better voice to Deepgram's Voice Agent with Speechify
Point Deepgram Voice Agent at the open-source tts-shims OpenAI-compatible proxy to speak with a Speechify voice. The shim answers Deepgram's open_ai TTS request and keeps your Speechify key server-side.
Engineering Controlling Emotion and Timing in TTS with SSML
Use SSML emotion tags, pauses, prosody, emphasis, and pronunciation aliases to shape Speechify TTS output from one API request.
Engineering Building an automated audiobook pipeline with the Speechify TTS API
Turn long-form ePub or Markdown into a single narrated chapter MP3 with a runnable Python demo: chunk on sentence boundaries, synthesize each chunk, stitch with ffmpeg.
Engineering Switch to Speechify from inside speech-sdk
Speechify is now a direct provider in speech-sdk. Switch existing calls over with a factory function and an API key, no new client required.
Engineering Dynamic video narration using the Speechify Voice Cloning API
Clone a voice from a short sample and use it to narrate dynamic video content programmatically via the REST API.
Engineering Building real-time captions with Speechify TTS speech marks
Use the Speechify API's word-level timestamps to generate accurate WebVTT captions for your synthesized audio.
Engineering Streaming TTS in Python with Speechify
How to stream audio from the Speechify TTS API in Python using the SDK and native requests. Covers chunked streaming to disk and piping audio to a player without waiting for the full payload.
Engineering Using TTS in Node.js with Speechify
A practical guide to synthesizing speech in Node.js using the Speechify TTS API. Covers installation, a basic synthesis call, streaming audio to disk, and what to reach for next.