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Marqeta documentation

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Core API Quick Start

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Latest release notes

Fraud feedback via two-way SMS

Marqeta now enables cardholders to provide feedback via two-way SMS for transactions that have been flagged as potentially fraudulent by Marqeta’s Real-Time Decisioning (RTD) platform.

March 2026
API rate limiting

Marqeta is implementing API rate limits on Core API requests to the Marqeta platform, in accordance with industry standards.

March 2026
New self-service credential API

Marqeta has added a self-service credential API to the Core API authentication functionality, allowing you to create and manage the admin access tokens that authenticate users of a given application.

February 2026
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