Compliance & Financial Services API

Your Brand,
Our Infrastructure

Expand your platform and create new revenue streams with payment processing, expense management, and compliance solutions, with Crowded’s API.

Your customers interact with your brand throughout their financial journey.

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Platforms leveraging Crowded's API

Ways to Leverage the Crowded API

Who Works with Us:

Modern API Architecture

Industry-Standard Implementation

Our RESTful API follows best practices with clear endpoints, comprehensive versioning, and developer documentation. JSON data exchange, robust security with API keys, and TLS encryption ensure your integrations are both powerful and secure.

Also, integrate our tools via iframe into your platform, fully white-labeled.

Enterprise Grade Security Compliance Crowded

Crowded API in Action

In Payments Processed
$ 0 M
Users
0 K
Enterprise Clients
0 +
Uptime SLA with Financial
Guarantees
0 %
We Handle Regulatory Crowded
Leave the support to us Crowded
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Ready to expand your platform capabilities?
Kyle Ungerman
Head of Partnerships Crowded

Let’s chat!

Kyle Ungerman,
Head of Partnerships

Your questions,
answered.

Have other questions ? View more FAQ

How long does integration typically take?

Most partners complete their integration within 4-8 weeks, depending on complexity and scope. We provide dedicated solutions engineering support throughout the entire process.

At least one backend engineer familiar with RESTful APIs can handle the core integration. For full-featured implementations including embedded UI components, you may want frontend support as well. We provide comprehensive developer documentation, Postman collections, and dedicated support to streamline the process.

Yes! Our documentation is available upon request. To access the docs, fill out this request form.

Our pricing model aligns with your business objectives and can be structured as revenue share, per-transaction fees, monthly platform fees, or hybrid models. We work with you to design a pricing structure that makes sense for your customer base and growth trajectory.
We maintain 99.9% uptime with distributed infrastructure and comprehensive disaster recovery protocols. In the rare event of an outage, all issued cards remain valid and functional, funds remain secure, and our team works to restore service immediately. An agreement can include SLA guarantees and compensation provisions.
We provide mobile-ready APIs that integrate seamlessly into your existing mobile applications. End-users can manage cards, view transactions, report fraud, and access all account features through your branded interface.
Crowded handles banking regulation compliance, PCI-DSS requirements, AML/KYC workflows, transaction monitoring, and regulatory reporting. Customers remain responsible for their platform’s terms of service and ensuring appropriate use of the financial services features.
Yes. Physical cards can be fully customized with your branding, including logos, colors, and design elements.
End-users can self-solve most needs (freeze cards, report fraud, view transactions). Also, route tickets to Crowded’s dedicated support team to solve tickets.
You receive real-time transaction data via webhooks and API endpoints. We provide exports for account and transaction data upon request. For advanced analytics needs, we can build custom data portals and dashboards tailored to your specific requirements.
Our API connects directly to IRS databases to verify 501(c)(3) status in real-time. Provide the organization’s EIN, and we return the current tax-exempt status, organization details, and verification timestamp. This eliminates manual verification processes and ensures compliance for donor-advised fund payments.
Absolutely. Many partners begin with bank accounts for their customers, and then move into card issuance, spend management, and Form 990 filings as they scale. Our API architecture makes it easy to add capabilities incrementally, and we provide the same dedicated support for expansion as we do for initial integration.
We manage comprehensive fraud monitoring, detection, and prevention systems powered by Visa Fraud Protection. Transaction monitoring runs 24/7 with AI-powered anomaly detection.
After successful sandbox testing, we conduct a comprehensive launch readiness review of the technical integration. Production keys are provided upon definitive agreement signature and first payment. We provide hands-on launch support and ongoing monitoring during your initial production period.