Payment Gateways & Third-Party API Integrations
Seamless integration of online payments (Stripe, PayPal, M-Pesa Daraja), automated invoicing, webhook handlers, and third-party REST API pipelines.
Engineered for High Reliability & Zero Bloat
Integrate frictionless local and international payments into your software. I build production-grade M-Pesa Daraja STK Push, C2B Paybill, B2C disbursements, Stripe, and PayPal integrations with cryptographic signature verification and idempotent webhook handlers.
Who This Service Is Built For
- • Businesses wanting automated mobile money collections without manual bank reconciliation.
- • Platforms needing instant payment callbacks and automated order fulfillment.
- • Applications requiring automated mass payouts (B2C disbursements) to Kenyan numbers.
- • Cross-border services wanting simultaneous KES and USD payment gateways.
Full Deliverables & Architectural Specifications
Recent Systems Built & Scaled
M-Pesa Daraja Automated Settlement Pipeline
Implemented automated Daraja STK Push and C2B validation hooks with zero dropped callbacks over 50,000 transactions.
Frequently Asked Questions
Other Specialized Services
Bespoke, high-performance web systems engineered for business operations, high concurrency, and zero tech debt.
High-converting online stores with instant M-Pesa Daraja and card payments, real-time inventory, and zero monthly platform cuts.
Launch your software product in 4–6 weeks with multi-tenancy, recurring subscriptions, team permissions, and production-grade security.
Sleek, high-converting product landing pages and corporate authority websites designed to turn cold visitors into paying clients or qualified leads.
Industrial-strength RESTful and webhook APIs, asynchronous background queue pipelines, and system integrations that handle high request volume reliably.
Rock-solid relational database design, query optimization, slow-query remediation, and zero-downtime data migrations for scaling systems.
Dedicated monthly engineering support, 24/7 uptime monitoring, critical security patching, performance profiling, and continuous feature iterations.
Let's discuss your payment gateways & apis project requirements.
Receive a fixed-price architectural blueprint and milestone timeline within 24 hours. No sales reps—work directly with Cyrus Mwendwa.