Plaid

Plaid is the infrastructure layer that thousands of fintech apps use to connect to users' bank accounts. Its APIs provide access to transaction data, account balances, identity verification, and income verification, powering apps like Venmo, Robinhood, and countless budgeting tools. Plaid's AI capabilities include intelligent transaction categorization, income detection, and risk assessment. The platform processes billions of transactions, using machine learning to normalize messy bank data into clean, structured information that developers can build on. While Plaid is primarily a developer platform rather than a consumer product, its AI-powered data processing is the foundation that makes most personal finance and fintech apps possible. Developers use it to build everything from budget trackers to lending platforms.