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Select Transactions API

Enriched, real-time transaction records from partner merchants

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Create, manage and track card-linked offers

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Select Transactions API

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Select Transactions API Offers

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© 2025. Enigmatic Smile Ltd trading as Fidel. Fidel API uses a proprietary tokenization system and does not store any card numbers. All API requests use TLSv1.2 with end-to-end encryption. Fidel API receives transaction authorization messages typically within seconds of a successful authorization event.