SaaS Integration Services

Connect Stripe, Brevo, Twilio, and other SaaS tools to your applications. Production-ready integrations built for reliability and scale.

Seamless SaaS Integrations

We integrate the SaaS tools your startup needs to operate: payments, email, communications, and analytics. Production-grade implementations with proper error handling, webhook management, and security.

Common Integrations (But We're Not Limited to These)

We can integrate with any third-party service that has an API or webhooks. Here are platforms we've worked with or commonly integrate.

💳 Payments

  • Stripe - Payment processing, subscriptions, billing portals, Connect for marketplaces
  • PayPal - Payment processing, PayPal Commerce Platform, invoicing
What we build: Checkout flows, subscription management, webhook handlers, payment reconciliation, dispute handling

📧 Email & Marketing

  • Brevo (Sendinblue) - Transactional emails, marketing campaigns, contact management
  • Iterable - Cross-channel marketing automation, journey orchestration
  • MailChimp - Email marketing, audience management, campaign automation
What we build: Template management, segmentation logic, event-triggered campaigns, deliverability monitoring, unsubscribe handling

💬 Communications

  • Twilio - SMS messaging, phone verification, programmable voice
  • Zoom - Meeting creation, recording management, webhook integrations
  • Slack - Notifications, bot commands, workflow automation
What we build: SMS campaigns, two-factor authentication, meeting schedulers, notification systems, interactive Slack bots

📊 Analytics & Advertising

  • Google Analytics - Event tracking, conversion monitoring, custom dimensions
  • Meta Ads - Campaign management, conversion tracking, audience sync
  • Google Ads - Campaign API integration, conversion tracking, automated bidding
What we build: Server-side tracking, conversion API integration, audience syncing, attribution reporting, GDPR-compliant tracking

How We Build Integrations

Third-party APIs fail, rate limits hit, and webhooks arrive out of order. We build integrations that handle the real world.

01

Reliable Webhook Handling

Webhooks can arrive out of order, duplicate, or fail silently. We implement idempotency, signature verification, retry logic, and proper queuing.

Azure Service Bus, deduplication, event ordering
02

Error Recovery

APIs fail - rate limits, timeouts, service outages. We implement exponential backoff, circuit breakers, and graceful degradation so your users never see errors.

Polly retry policies, fallback strategies, health checks
03

Security Best Practices

API keys in Azure Key Vault, webhook signature verification, secure credential storage, and audit logging for compliance.

OAuth flows, Azure Key Vault, encryption at rest
04

Comprehensive Testing

Integration tests with real API sandbox environments, webhook replay scenarios, rate limit handling, and failure mode testing.

Integration test suites, mock servers, chaos testing
05

Observable & Debuggable

When integrations break, you need to know why. Structured logging, distributed tracing, and monitoring dashboards for every API call.

Application Insights, Seq logging, custom metrics
06

Cost Optimization

API calls cost money. We implement caching, batch processing, and smart retry strategies to minimize unnecessary API usage.

Redis caching, request batching, usage monitoring

Our Integration Process

Fixed-price projects with clear deliverables. No hourly billing surprises.

01

Discovery & Scoping

We review your requirements, map the integration points, identify edge cases, and provide a fixed-price quote.

1-2 days · Written specification · Fixed quote
02

Implementation

Production-grade integration with comprehensive error handling, testing, and documentation. Regular progress updates.

2-4 weeks typical · Staged deployment · Code review
03

Testing & Launch

Sandbox testing, webhook validation, load testing, and production deployment with monitoring.

Integration tests · Monitoring setup · Handover docs

Transparent Pricing

Fixed-price projects with clear deliverables. No hourly billing surprises.

Simple Integration

£1,500 - £3,000

Single API integration with webhooks and basic error handling.

  • 1-2 API endpoints
  • Webhook signature verification
  • Basic retry logic
  • Testing and deployment
  • Documentation
Timeline: 1-2 weeks

Complex System

£5,000 - £20,000+

Multi-platform integration with custom business logic and data transformation.

  • Multiple service integrations
  • Data transformation pipelines
  • Custom reconciliation logic
  • Enterprise-grade monitoring
  • Performance optimization
Timeline: 2-6 weeks

All projects start with discovery: We review your requirements, map integration points, and provide a fixed quote within 1-2 days. No obligation.

Work With Any API

The platforms listed above are examples we've worked with or commonly integrate. If a service has an API, webhooks, or even CSV exports, we can integrate it. Regional payment processors, niche SaaS tools, legacy systems with APIs - we've built integrations for all kinds. Not sure if your integration is possible? Tell us what you need connected and we'll give you an honest feasibility assessment within 24 hours.

Let's Talk About Your Integration Needs

Tell us which platforms you need to integrate - we'll provide honest feasibility and cost estimates. No sales pitch, we respond within 24 hours.

🎯 No obligation or sales pressure 👨‍💻 10+ years startup development experience

No obligation · 10+ years experience