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Stax Connect
Orlando, Florida, United States
What it is
Stax Connect provides embedded payments for vertical SaaS platforms in fields including field services, professional services, healthcare, education, and nonprofit. It offers hosted components, SDKs, branded dashboards, and merchant enrollment paths ranging from hosted to custom. Platforms can accept online and in-person payments, recurring commerce, cards, Apple Pay, Google Pay, ACH, PayPal, and Venmo. Developer resources include a REST API, JavaScript and Python SDKs, iOS and Android mobile SDKs, and webhooks for payment and dispute events. Payment operations include reporting for enrollment, transactions, disputes, and deposits, as well as split funding and same-day or next-day deposits. Platforms can apply compliant surcharging, custom fees, and other pricing options. Stax lists PCI compliance at scale, in-house AML/KYC checks, daily monitoring, and suspicious-activity controls. It offers pre-launch implementation assistance and sales and marketing support before and after launch, with optional post-launch Tier 1 support. Pricing is available on request. Level 2 processing applies to eligible transactions, and some in-person payment capabilities require a card-present integration.
For and against
For
- Supports online, in-person, and recurring payments
- Offers REST API, SDKs, and event webhooks
- Includes split funding and deposit reporting
- Lists pre-launch implementation assistance
Against
- Pricing is available on request
- Some in-person capabilities require a card-present integration
- Level 2 processing is limited to eligible transactions
The verdict
Stax Connect combines payment acceptance, developer tools, and payment operations for SaaS platforms. Teams should confirm pricing and check whether their intended in-person setup requires card-present integration.
Who it suits
It suits vertical SaaS teams that want to embed payment acceptance and operations into their platforms. Developer tools and branded enrollment options may fit teams building a tailored payment experience.
Plans and prices
Stax Connect
Pricing is not publicly listed · Custom partner pricing
Read 15 Oct 2026 · staxpayments.com
On the record
- API endpoints
- Stax publishes separate API endpoints and developer documentation for its US, EU and Australia installations.support.stax.io · read 15 Oct 2026
- Company
- Stax says it was founded in Orlando, Florida, in 2014.staxpayments.com · read 2 Oct 2026
- Company development
- Stax says Stax Connect launched in 2020 and that it has more than 30,000 merchant customers and over 150 integrated software partners.staxpayments.com · read 15 Oct 2026
- Company founding and headquarters
- Stax Payments identifies itself as founded in 2014 and headquartered in Orlando, Florida.linkedin.com · read 15 Oct 2026
- Company legal name
- Crunchbase lists the legal name as Stax Payments, Inc., formerly known as Fattmerchant.crunchbase.com · read 15 Oct 2026
- Company size
- LinkedIn lists Stax Payments in the 201–500 employee size range.linkedin.com · read 15 Oct 2026
- Custom API effort
- Custom API enrollment may take about 2.5 weeks for one fully dedicated developer and requires document upload, electronic signatures and edit or re-sign flows.docs.staxpayments.com · read 15 Oct 2026
- Developer tools
- Developers can use a REST API, JavaScript and Python SDKs, mobile SDKs for iOS and Android, and webhooks for payment and dispute events.staxpayments.com · read 2 Oct 2026
- Encryption and tokenization
- Stax says card data is encrypted on processing devices, not retained after transactions and protected with tokenization.docs.staxpayments.com · read 15 Oct 2026
- Enrollment options
- Partners can choose white-label landing pages, white-glove enrollment, hybrid API enrollment or custom API enrollment.docs.staxpayments.com · read 15 Oct 2026
- Fraud controls
- Stax says it monitors accounts for unauthorized charges and performs KYC and CIP checks through financial partners.docs.staxpayments.com · read 15 Oct 2026
- Funding and eligibility
- Level 2 processing is available on eligible transactions, and some listed in-person payment capabilities require a card-present integration.staxpayments.com · read 2 Oct 2026
- Hybrid API effort
- Stax estimates about four days for a dedicated developer to implement hybrid enrollment.docs.staxpayments.com · read 15 Oct 2026
- Implementation timeline
- Stax states its average implementation timeline is 45 days.docs.staxpayments.com · read 15 Oct 2026
- Landing-page limitation
- White-label landing pages have limited customization, cannot use a partner domain or favicon and support only one pricing option per page.docs.staxpayments.com · read 15 Oct 2026
- Licence
- The reviewed materials describe a hosted commercial service and do not state an open-source licence.staxpayments.com · read 15 Oct 2026
- Limit: administration
- A reviewer says administrators cannot configure portal access for different locations without contacting Stax.getapp.com · read 15 Oct 2026
- Limit: billing and cancellation
- BBB reviewers allege continuing withdrawals after cancellation, unexpected fee increases and recurring performance or chargeback fees.bbb.org · read 15 Oct 2026
