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Documentation Index

Fetch the complete documentation index at: https://visionagents.ai/llms.txt

Use this file to discover all available pages before exploring further.

AWS Polly provides cloud-based TTS with natural-sounding voices across multiple languages. Supports both standard and neural engines.
Vision Agents requires a Stream account for real-time transport. Most providers offer free tiers to get started.

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Installation

uv add "vision-agents[aws]"

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Quick Start

from vision_agents.core import Agent, User
from vision_agents.plugins import aws, gemini, deepgram, getstream

agent = Agent(
    edge=getstream.Edge(),
    agent_user=User(name="Assistant", id="agent"),
    instructions="You are a helpful assistant.",
    llm=gemini.LLM("gemini-3-flash-preview"),
    stt=deepgram.STT(),
    tts=aws.TTS(),
)
AWS credentials are resolved via the standard AWS SDK chain (environment variables, AWS profiles, or IAM roles).

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Parameters

NameTypeDefaultDescription
voice_idstr"Joanna"Voice ID
enginestrNoneEngine ("standard" or "neural")
region_namestrNoneAWS region
language_codestrNoneLanguage (e.g., "en-US", "es-ES")

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Neural Engine

For more natural-sounding voices: 
tts = aws.TTS(engine="neural", voice_id="Joanna")

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SSML Support

tts = aws.TTS(text_type="ssml")
tts.send('<speak>Hello <break time="500ms"/> world!</speak>')

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Next Steps

Build a Voice Agent

Get started with voice

Build a Video Agent

Add video processing