swarmauri_tool_captchagenerator 0.9.3.dev4

Swarmauri Community Captcha Generator Tool

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Swarmauri Tool Captcha Generator

Tool that generates CAPTCHA images from text using the captcha library. Returns the rendered PNG as a base64-encoded string so it can be stored or embedded inline.

Features

• Accepts a single parameter (text) and produces an ImageCaptcha output.
• Returns a dictionary with image_b64 containing the PNG bytes encoded as base64.
• Can be wired into larger Swarmauri toolchains to produce human challenges dynamically.

Prerequisites

• Python 3.10 or newer.
• Pillow and captcha dependencies (installed automatically with this package).

Installation

# pip
pip install swarmauri_tool_captchagenerator

# poetry
poetry add swarmauri_tool_captchagenerator

# uv (pyproject-based projects)
uv add swarmauri_tool_captchagenerator

Quickstart

import base64
from pathlib import Path
from swarmauri_tool_captchagenerator import CaptchaGeneratorTool

captcha_tool = CaptchaGeneratorTool()
result = captcha_tool("Verify42")

image_b64 = result["image_b64"]
image_bytes = base64.b64decode(image_b64)
Path("captcha.png").write_bytes(image_bytes)

Displaying inline (e.g., in a HTML response):

html = f"<img src='data:image/png;base64,{image_b64}' alt='captcha' />"

Tips

• Customize CAPTCHA rendering (fonts, size) by subclassing and configuring ImageCaptcha (e.g., ImageCaptcha(width=280, height=90)).
• Store the generated solution (Verify42 in the example) securely server-side to validate client responses later.
• For high throughput, reuse the tool instance rather than instantiating per request to avoid repeated font loading overhead.

Want to help?

If you want to contribute to swarmauri-sdk, read up on our guidelines for contributing that will help you get started.