Sequoir | 518 followers on LinkedIn. Sequoir is a financial technology firm providing Bitcoin trading APIs to power banks, credit unions, and the Web 3.0. | Sequoir is a financial technology firm providing Bitcoin trading APIs to power banks, credit unions, fintech, and the Web 3.0. Sequoir is a fully regulated and FinCEN compliant digital asset exchange based in the United States providing integrated blockchain infrastructure with a white-label approach.