AssemblyAI

AssemblyAI is a text-to-speech plugin. It streams low-latency speech from one session for the whole call, in English, Spanish, German, Italian, Portuguese, and French, plus your own cloned voices.

Setup

Set your AssemblyAI API key in the worker environment. Generate a key from the AssemblyAI site:

export ASSEMBLYAI_API_KEY=<key>

Usage

Import the plugin and pass it to the pipeline’s tts slot.

from zeroruntime.plugins import AssemblyAITTS

tts = AssemblyAITTS()

# Pipeline(tts=tts, ...)

AssemblyAITTS ships in the Python SDK only. The Node JS SDK does not include this plugin yet.

AssemblyAITTS requires a zeroruntime release newer than 0.1.9.

Parameters

Constructor parameters for AssemblyAITTS.

Parameter	Type	Default	Description
`api_key`	`str`	`None`	AssemblyAI API key. Falls back to the `ASSEMBLYAI_API_KEY` environment variable when unset.
`model`	`str`	`"assemblyai-tts-1"`	TTS model.
`voice_id`	`str`	`"aai-jane"`	Voice slug or ID from the AssemblyAI catalog, or a cloned voice. Built-in voices such as the default start fastest, because they are always loaded.
`language`	`str \| None`	`None`	English name of the language to speak: “english”, “spanish”, “german”, “italian”, “portuguese” or “french”. Leave unset to speak the voice’s own language. AssemblyAI does not detect it from the text.
`region`	`str`	`"US"`	Data zone, “US” or “EU”. Use the one nearest the agent, and the same one as AssemblyAISTT. Ignored when base_url is set.
`base_url`	`str \| None`	`None`	Streaming host override, e.g. “wss://tts.eu.assemblyai.com”. Overrides region.

Import paths

SDK	Import	Constructor
Python	`from zeroruntime.plugins import AssemblyAITTS`	`AssemblyAITTS()`

Synthesized audio is streamed back to the caller after the LLM produces a response.

Inference

This provider also runs through the Inference Gateway on your Zero Runtime auth token, with no AssemblyAI API key. Import AssemblyAITTS from zeroruntime.inference instead of zeroruntime.plugins.

Get started

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Setup

Usage

Parameters

Import paths

Inference

​Setup

​Usage

​Parameters

​Import paths

​Inference

Setup

Usage

Parameters

Import paths

Inference