Freedom251 › Embedded Payments Platforms
Stax Connect
What Stax Connect is
Stax Connect provides embedded payments for vertical SaaS platforms serving fields such as healthcare, education, professional services, field services and nonprofits. 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 tools include a REST API, JavaScript and Python SDKs, mobile SDKs for iOS and Android, and webhooks for payment and dispute events. Payment operations include reporting for enrollment, transactions, disputes and deposits, along with split funding and same-day or next-day deposits. Platforms can use compliant surcharging, custom fees and other pricing options to monetize payments. Stax lists PCI compliance at scale, in-house AML/KYC checks, daily monitoring and controls for suspicious activity. Support includes pre-launch implementation and sales and marketing help, with optional post-launch Tier 1 support. Pricing is available on request, rather than listed as a fixed amount. Some in-person payment capabilities require a card-present integration, and Level 2 processing applies only to eligible transactions.
Who it suits
Stax Connect suits vertical SaaS teams embedding payments in products for sectors including healthcare, education, field services and nonprofits. It is geared toward platforms needing developer tools, payment operations and merchant enrollment options.
What it does well
- Supports online and in-person payments and recurring commerce.
- Provides REST API, SDKs and event webhooks.
- Offers split funding and same-day or next-day deposits.
- Includes reporting for transactions, disputes and deposits.
- Pre-launch implementation help is available.
What to know first
- Pricing is available on request.
- Some in-person capabilities require a card-present integration.
- Level 2 processing is limited to eligible transactions.
Limits
Some in-person payment capabilities require a card-present integration. Level 2 processing is available only on eligible transactions.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Stax Connect | Contact sales for embedded-payments pricing · Pricing is not publicly listed · Custom partner pricing | On request |
As staxpayments.com lists them, read 15 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the Stax Connect website.
- Contact sales for pricing.
- Choose hosted or custom merchant enrollment paths.
- Use the REST API, SDKs, or hosted components to build the payment experience.
- Plan a card-present integration if you need the in-person capabilities that require one.
Verdict
Stax Connect offers payment acceptance, operational reporting and developer tools for SaaS platforms. Pricing requires a sales inquiry, and some capabilities depend on eligibility or integration setup.
Questions
How much does Stax Connect cost?
Pricing is available on request; contact sales.
Which platforms does Stax Connect support?
Its listed platforms are Android, API, iOS, and web.
Which payment methods can it accept?
It supports cards, Apple Pay, Google Pay, ACH, PayPal, and Venmo, along with online and in-person payments and recurring commerce.
What developer tools are available?
The platform offers a REST API, JavaScript and Python SDKs, iOS and Android mobile SDKs, and webhooks for payment and dispute events.
Does it support split payments or flexible payouts?
It supports split funding, and its listed payout capabilities are flexible.
What support does Stax offer?
Stax offers pre-launch implementation help, sales and marketing support before and after launch, and optional post-launch Tier 1 support.
Facts from Stax Connect's own pages
- API endpoints
- Stax publishes separate API endpoints and developer documentation for its US, EU and Australia installations. · support.stax.io, 15 Oct 2026
- Company
- Stax says it was founded in Orlando, Florida, in 2014. · staxpayments.com, 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, 15 Oct 2026
- Company founding and headquarters
- Stax Payments identifies itself as founded in 2014 and headquartered in Orlando, Florida. · linkedin.com, 15 Oct 2026
- Company legal name
- Crunchbase lists the legal name as Stax Payments, Inc., formerly known as Fattmerchant. · crunchbase.com, 15 Oct 2026
- Company size
- LinkedIn lists Stax Payments in the 201–500 employee size range. · linkedin.com, 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, 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, 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, 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, 15 Oct 2026
- Founded
- 2014 · staxpayments.com, 28 Sept 2026
- Fraud controls
- Stax says it monitors accounts for unauthorized charges and performs KYC and CIP checks through financial partners. · docs.staxpayments.com, 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, 2 Oct 2026
- Headquarters
- Orlando, Florida, United States · staxpayments.com, 28 Sept 2026
- Hybrid API effort
- Stax estimates about four days for a dedicated developer to implement hybrid enrollment. · docs.staxpayments.com, 15 Oct 2026
- Implementation timeline
- Stax states its average implementation timeline is 45 days. · docs.staxpayments.com, 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, 15 Oct 2026
- Licence
- The reviewed materials describe a hosted commercial service and do not state an open-source licence. · staxpayments.com, 15 Oct 2026
- Limit: administration
- A reviewer says administrators cannot configure portal access for different locations without contacting Stax. · getapp.com, 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, 15 Oct 2026
- Limit: deposits
- A Trustpilot reviewer reported a missed deposit, more than $8,000 in losses and difficulty obtaining help. · trustpilot.com, 15 Oct 2026
- Limit: fee complaints
- NerdWallet reports user complaints about surprise price increases and statements containing several pages of miscellaneous fees. · nerdwallet.com, 15 Oct 2026
- Limit: sales transparency
- A reviewer says an initial comparison quote omitted the monthly charge until a revised quote was requested. · getapp.com, 15 Oct 2026
- Limit: small-business economics
- NerdWallet says the $99-or-more monthly fee is generally uneconomic for businesses processing under $10,000 per month. · nerdwallet.com, 15 Oct 2026
Where Stax Connect stands on Freedom251
- Embedded Payments Platforms#15 of 28