Python / BSC Chain Script

Description: Looking for an experienced Python developer familiar with BSC (BNB Smart Chain) blockchain data and APIs. What I need: A Python script that does the following: Takes a list of 9 BSC token contract addresses as input Pulls token transfer history for each contract using a blockchain data API (BSCScan, Moralis, Covalent, or similar — flexible on which API) Extracts all unique wallet addresses that interacted with each token Cross-references the wallets across all 9 tokens to find addresses that appear in multiple tokens Ranks results by how many tokens each wallet appears in Exports the full results to a clean CSV file with columns: wallet address, token count, tokens appeared in Bonus if possible: A second function where I input any new BSC contract address and it checks how many of the flagged wallets are currently holding or have interacted with that token What I have ready: All 9 contract addresses A BSCScan API key Python 3.14 installed on Mac Requirements: Clean readable Python code Must actually run successfully and return real data CSV output that opens cleanly in Excel Brief instructions on how to run it Budget: $100-200 Timeline: Within 3 days Skills to select: Python, Web Scraping, Blockchain, API Integration, Data Extraction