Python API Integration Bot

I need a reliable Python-based bot whose single purpose is to integrate several external APIs and keep the data flowing between them without manual intervention. The core of the job is to build clean, well-structured code that can:

• Authenticate against each service (OAuth2, token, or key as required)
• Schedule and trigger calls at configurable intervals
• Parse and combine the responses into a single, usable JSON payload
• Log every request/response and gracefully handle time-outs, rate limits, and other common errors

If asynchronous techniques (aiohttp, asyncio) or task queues (Celery, RQ) would improve performance, feel free to include them. Well-written docstrings, a short README, and concise setup instructions are part of the final hand-off so I can extend the bot internally later.

I’m open on exact tooling, as long as the end result is a self-contained script or small package I can drop onto a Linux server and run with a single command. Please include a brief outline of your proposed approach and any past projects where you wired multiple APIs together successfully.