[Free Extension] TCBGeminiBot - Create a Chatbot with Gemini API (Free Key Support) 🚀

[TheCodingBus]

Hello everybody! Today, I am excited to introduce my new extension called TCBGeminiBot
This extension allows you to create a chatbot using the Gemini API with a free API key.
Simply input your API key and start sending questions to receive AI-generated responses instantly.

Current Version: 1.0
File Size: 430KB
File: TCBGeminiBot.aix (429.2 KB)
Created On: 2025-03-16

TCBGeminiBot Extension Documentation

Overview

The TCBGeminiBot extension allows you to integrate the Gemini API into your MIT App Inventor projects. With this extension, you can create chatbots, AI-powered apps, and more by sending questions to the Gemini API and receiving responses.

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Features

1. Set API Key: Securely set your Gemini API key.
2. Send Questions: Send questions to the Gemini API and receive responses.
3. Event-Driven Responses: Use the GotResponse event to handle API responses.
4. Retrieve Last Response: Fetch the last response from the API at any time.

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Installation

1. Download the .aix file for the TCBGeminiBot extension.
2. Open your MIT App Inventor project.
3. Go to the Extensions section and click Import Extension.
4. Upload the .aix file.
5. The TCBGeminiBot component will appear in the Non-visible components section.

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Properties

The TCBGeminiBot extension has no visible properties. It is a non-visible component.

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Methods

1. SetAPIKey

• Description: Sets the API key required to authenticate requests to the Gemini API.
• Parameters:
  • key (String): Your Gemini API key.
• Usage:

blocks
TCBGeminiBot1.SetAPIKey("your_api_key_here")

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2. SendQuestion

• Description: Sends a question to the Gemini API and triggers the GotResponse event with the API's response.
• Parameters:
  • question (String): The question or prompt to send to the API.
• Usage:

blocks

TCBGeminiBot1.SendQuestion("What is the capital of France?")

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3. GetLastResponse

• Description: Returns the last response received from the Gemini API.
• Returns:
  • response (String): The last response from the API.
• Usage:

blocks
TCBGeminiBot1.GetLastResponse()

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Events

1. GotResponse

• Description: Triggered when a response is received from the Gemini API.
• Parameters:
  • response (String): The response from the API.
• Usage:

blocks
when TCBGeminiBot1.GotResponse do set Label1.Text to response end when

Guide to Create a API Key and Create Simple ChatBot App -: How to Create ChatBot App - The Coding Bus

Create a Chatbot App with Gemini AI in MIT App Inventor

[Black_Knight]

Good work
but you can add some advanced features of the API like streaming , contentious context chat and ....
See this example extension :

[PAID] Gemini Extension to interact with the Gemini-pro model from Google

[Gemini] The Gemini extension for AI2 allows you to interact with the Google Gemini-Pro, Gemini-Pro-Vision, and Gemini 2.0 Flash Thinking models, including models that Bard is based on, to generate text and control a stream of text generation. Features of the Gemini Extension for AI2: Text Generation with Gemini API: Leverage the power of Google Gemini API for advanced text generation within your AI2 applications. Includes support for various Gemini models, including Gemini-Pro, G…

[techxsarthak]

Or like json filtering, fast inference
Example extension

[Freemium] GroqText: DeepSeek, Llama, Gemma, Mixtral and Qwen in your app with a single extension (with free tokens daily)

[ezgif-6-95a00689cb] [GroqText] Introduction Integrate a large number of AI Models in your app through the groq api Includes a generous free plan with daily rate limit (without credit card) Includes 2b, 8b and 70b parameter models Features of Groq Inference Lightning fast AI Models Supports 10+ Open Source AI Models- Gemma, LLama and Mixtral Best Free Plan that gives 500k tokens* daily for free to use in production AI Models Supported (Google, Meta and Mixtral) gemma2-9b-it llama3-8b-819…

[TheCodingBus]

Thanks.
sure i'll do that.

[TheCodingBus]

ya sure @techxsarthak

[techxsarthak]

Which software do you use for your screenshots

[TheCodingBus]

it's Guidde

[PanPanPan]

Hello there, currently I am facing a runtime error
invoke: no method named `SendQuestion' in class java.lang.Boolean
Note: You will not see another error reported for 5 seconds.

My code is here, would you help me figure it out? Thanks!

[TheCodingBus]

make sure
try this app after building the apk file,
first use the static questions instead of passing the result directly to the extension

and still having issue then please share the aia file i'll fix it.

[Sabina_Rout]

TCB i HAVE DOUBT IN CONTACT HACKING NUMBER THAT HOW ALL NUMBERS CAN BE GOT INSTEAD OF ONLY 10 PHONE NO.S

[elmachi130]

The dialogue with the Geminibot is in English. How can I replace it with Spanish?

El autobús de codificación

[Jalal]

Hello everyone,

I am requesting help regarding the TCBGeminiBot.aix extension for using Google Gemini in MIT App Inventor.

I have built a simple chatbot app using this extension, but it has never worked even once. From the very first request, it always returns:

Error 429 – Too Many Requests

I am confident that this issue is not related to request limits, and below is a detailed description of what I have tested.

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What I have confirmed

• The Gemini API key is valid

• The key was created in Google AI Studio (aistudio.google.com), not in Google Cloud Console

• The key works correctly in Google AI Studio Playground (simple prompts return responses normally)

• The API key is:

  • Unrestricted
  • Newly created
  • Used with zero prior requests

• The error occurs immediately on the first request, every time

• Waiting time after key creation (30+ minutes) did not change the result

Thank you in advance to anyone who can share his thoughts or insights.

[sidrobo]

Google recently introduced mandatory billing account setups, which may be causing errors. To resolve this, please configure your billing in AI Studio, where you can also monitor your rate limits.