Mojave is now Paying.co — same team and expertise, now with a name that reflects our core mission. Learn more →

Payment engineering · since 2018

Payment engineering, on demand. Ship in as fast as 60 days. Certified, processing, done.

EMV Level 3 certifications, mPoC, Android payment apps, unattended commerce, and custom payment development — shipped for processors, ISVs, and acquirers across 5 regions.

What payments actually run on Live
EM
EMV L3 · MCP
All four brand test plans passed on the first submission. Certification letter issued by Fiserv.
EMV L3 Certification
verified Certified
Trusted by · Certified with · 20+ integrations
Visa· American Express· PAX· Ingenico· Verifone· Clover· Datacap· NMI· Stripe· Global Payments· Worldpay· Fiserv· TSYS· Elavon· Chase· Heartland· Honeywell· Samsung· Visa· American Express· PAX· Ingenico· Verifone· Clover· Datacap· NMI· Stripe· Global Payments· Worldpay· Fiserv· TSYS· Elavon· Chase· Heartland· Honeywell· Samsung·
Core Services

Built around three core disciplines.

Where we focus our team's depth — and what we ship every day for payment companies operating at scale.

The Paying.co Method

How we achieve results.

A focused, experienced team that integrates with yours — and delivers payment outcomes that move the needle.

A
Laser focus on payments & security

Our core competency is integrating and enabling payments — globally, not just in the US. Deep stack security knowledge moves hand-in-hand with everything we ship.

B
Experienced team that works alongside yours

We add our technical know-how to your projects while staying a value-added resource to your existing team and infrastructure — not a replacement for it.

C
Remove the guesswork

We know payments, devices, certifications, and modern emerging technologies. Why start from zero when you could be off to a running pace from day one?

D
Existing relationships that benefit you

Extensive relationships with all major acquirers across the US, Canada, Europe, and Latin America. A proven track record that clears bottlenecks before they form.

Specialized Programs

Productized expertise, delivered to a schedule.

Packaged engagements that turn our hardest-won capabilities into fixed-scope, fixed-outcome programs.

smartphone
NEW PROGRAM

MPoC Certification Program

PCI MPoC certified in 90 days — or we keep working until you are. Tap-to-phone made shippable for ISVs, acquirers, and OEMs launching SoftPOS in the fastest-growing acceptance category.

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FEATURED

Embedded Payments

Build payments into your SaaS without becoming a payments company. Built to your spec, often for less than building it yourself — certified, compliant, and shipped on your timeline.

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contactless
FEATURED

SoftPOS · Tap-to-Phone

$0 hardware cost. Turn any NFC-capable smartphone or tablet into a contactless terminal. Full MPoC-compliant build, certified end-to-end, ready for app store deployment.

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FEATURED

White Label Solutions

Skip the build, own the brand. Off-the-shelf platforms (Puny, HoneyBee Kiosk, Landed.net) plus custom white-label engagements — your name on the front, our engineering underneath.

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Platform Integrations

Locked into a platform's default processors? We build custom payment integrations for Oracle Simphony, ACCEO Logivision, and Odoo — choose your own acquirer, gateway, and terminal stack.

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PCI Compliance & Audit

P2PE, PCI DSS, and MPoC readiness — from gap assessment to remediation to attestation. Pre-audit validation with every major PCI-certified assessor. Built to pass.

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Android Payment Terminals

Custom payment applications for Android-based terminals. We build, certify, and ship native apps on PAX, Clover, Ingenico, and ID TECH hardware — engineered for the field, ready for production.

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AI for Payments

Payment-specific AI — fraud detection, dispute automation, reconciliation, and agentic checkout. Custom LLM pipelines built for payment workflows, not generic chatbots.

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Mobile App Development

Native iOS and Android apps for payments, ordering, and unattended commerce. MDM-ready, store-submission tested, and built by a team that ships production payment apps every quarter.

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Our Products

Built by payments engineers, so you can focus on what you do best.

Turnkey platforms and protocols that power unattended payments, secure links, and connected commerce.

AI Integrations

Built for the AI tools your team already uses.

Paying.co ships native MCP servers across Landed.net, Puny.io, Ask, and HoneyBee. Drop them into Claude, ChatGPT, or any MCP-compatible client and your team can publish sites, send payment requests, wrap credentials, and update kiosks — directly from the conversation.

"Send a pay by QR code link to sammy92002@yahoo.com for $100.00"

AP
Ask by Paying.co
Got it! You want me to generate a pay by QR code to sammy92002@yahoo.com for $100.00? Would you like to add a note with that?
Pay by QR code generated for $100

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Success Stories

Real projects. Real cutovers. Real fast.

Three recent engagements — what came in, what shipped, and how long it took. Every project ends with working software in production, not a postmortem.

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Midwest ISO

Custom Android Payment Application

An ISO out of the Midwest needed a custom payment application built on Android — from concept to a first live customer transaction. We scoped, built, and shipped end-to-end. They were taking real card payments in production faster than most shops finish discovery.

4 wk
Concept to first transaction
Android
Native payment app
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Unattended Retail Operator

Sunmi P3 · TSYS Sierra

A high-growth unattended operator needed L3 certification on Sunmi hardware against TSYS Sierra. They'd been quoted seven figures elsewhere and needed it shipped in months. We built the application, ran full FIME / ICC suites in-house, and shipped with time to spare for their rollout.

7 mo
Quote to certified
60%
Below other quote
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European Petroleum Operator

Ingenico iSelf · Outdoor Pay

A European fuel operator needed L3 certification on outdoor pay-at-pump hardware against a notoriously strict processor spec. They came to us after a third party stalled. We ran a full pre-cert pass, caught the issues their previous vendor missed, and hit the original deadline.

8 mo
With rescue work
100%
First-pass approval
Want results like these?

Tell us what you're building. We'll tell you what it takes to ship it.

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Ready to Get Started?

Talk to our team.

Tell us what you're building. We'll tell you what it takes to get it certified, integrated, and shipped — and you'll hear back from a payments engineer, not a sales rep.

schedule
Response within one business day Most projects start with a 30-minute scoping call
engineering
You'll talk to an experienced sales engineer The person you brief is the person who scopes your build
handshake
No-obligation feasibility review We'll help you scope it and determine the best path forward that matches your budget and timeline
language
We speak your language English, Spanish, and Polish — fluent across our team and project leads
groups
Partners power our growth Much of our success comes from strong partnerships — if you're exploring one, we'd love to talk
Got a payments question? We're online — usually reply within a few minutes.