Plaid is a US financial data platform. Its APIs let developers connect applications to users' bank accounts, including through the Plaid Link flow. The offering covers account verification, identity checks, balances, transaction data, transfers and income verification. Plaid describes itself as a data platform and delivers the service as a cloud API that developers integrate into their own applications.
Plaid Inc. is incorporated in the United States. Its privacy policy states that data is stored in AWS regions located in the United States. For personal data from the EEA and the United Kingdom, Plaid relies on transfer mechanisms such as adequacy decisions and standard contractual clauses, and it has subsidiaries in Amsterdam and London. For a European organisation this means customer data is processed in the United States and is subject to US law, including the CLOUD Act. Plaid's services are proprietary, not open source.