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Samples and bindings for the Google Assistant API

Project description

This repository contains a Python sample for the Google Assistant API.

See Getting Started with the Raspberry Pi 3 for instructions on how to run the sample on supported hardware.


  • Python (3.x prefered)

  • Google API Console Project w/ Google Assistant API enabled.

  • OAuth client ID credentials with application type Other.

  • Use a new virtualenv (recommended):

    # python3 (recommended)
    sudo apt-get update
    sudo apt-get install python3-dev python3-venv
    python3 -m venv env
    env/bin/python -m pip install --upgrade pip setuptools
    source env/bin/activate
    # python2
    sudo apt-get update
    sudo apt-get install python-dev python-virtualenv
    virtualenv env --no-site-packages
    env/bin/python -m pip install --upgrade pip setuptools
    source env/bin/activate


  • Install the sample dependencies:

    sudo apt-get install portaudio19-dev libffi-dev libssl-dev
  • Install the latest Google Assistant SDK and samples package from PyPI:

    python -m pip install --upgrade google-assistant-sdk[samples]
    • Or if working from this repository’s sources, run:

      python -m pip install --upgrade -e ".[samples]"
  • Authorize access to the Google Assistant API:

    python -m googlesamples.assistant.auth_helpers --client-secrets client_secret_XXXX.json
    Please go to this URL: ...
    Enter the authorization code:
  • Verify audio setup:

    # Record a 5 sec sample and play it back
    python -m googlesamples.assistant.audio_helpers

Run the Sample

  • Record a voice query and the program should play back the Google Assistant’s answer:

    python -m googlesamples.assistant
  • Record and send pre-recorded audio to the Assistant:

    python -m googlesamples.assistant -i in.wav
  • Save Assistant response to a file:

    python -m googlesamples.assistant -o out.wav


  • Verify ALSA setup:

    # Play a test sound
    speaker-test -t wav
    # Record and play back some audio using ALSA command-line tools
    arecord --format=S16_LE --duration=5 --rate=16k --file-type=raw out.raw
    aplay --format=S16_LE --rate=16k --file-type=raw out.raw
  • Run the sample with verbose logging enabled:

    python -m googlesamples.assistant --verbose

For Maintainers

See for more documentation on the development, maintainance and release of the Python package itself.


Contributions to this repository are always welcome and highly encouraged.

See for more information on how to get started.


Copyright (C) 2017 Google Inc.

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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