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Integration & APIs

System Integration & APIs.

Connect your systems, automate data flows, and build robust APIs that let your tech stack work together seamlessly — eliminating manual processes and data silos.

Your CRM doesn't talk to your billing system. Your billing system doesn't talk to your analytics. Your analytics don't talk to your product. And someone on your team is spending 20 hours a week copy-pasting data between spreadsheets to hold it all together. We fix that. We design and build integration architectures that connect your existing tools, automate data flows between systems, and create the unified data layer your business needs to operate efficiently. From simple two-system syncs to complex enterprise middleware serving dozens of connected applications, we build integrations that are reliable, maintainable, and built to handle the edge cases that break most automated workflows. Our approach is API-first. We build clean, well-documented REST and GraphQL APIs that serve as the backbone of your integration architecture. Whether you need to connect Salesforce to your custom platform, build a payment processing pipeline, or create a real-time data sync between your mobile app and your ERP, we build the plumbing that makes it work — and the monitoring that tells you when it doesn't.
Capabilities

What's Included.

01

API Design & Development

RESTful and GraphQL APIs with comprehensive documentation, versioning, rate limiting, authentication, and SDKs — built to be consumed by internal teams and external partners.

02

CRM & Sales Tool Integration

Bi-directional sync between your product and Salesforce, HubSpot, Pipedrive, or custom CRM systems with real-time webhooks and conflict resolution.

03

Payment & Financial System Integration

Stripe, PayPal, bank APIs, accounting software (Xero, QuickBooks), and custom billing pipelines with PCI compliance and automated reconciliation.

04

Data Pipeline & ETL

Automated data extraction, transformation, and loading pipelines that keep your data warehouse, analytics, and reporting systems in sync across all data sources.

05

Middleware & Message Queues

Event-driven architectures using message queues and pub/sub patterns that decouple your systems, handle peak loads gracefully, and ensure no data is lost.

06

Legacy System Modernization

API wrappers, adapter patterns, and gradual migration strategies that let you modernize legacy systems without risky big-bang replacements.

Tech Stack

Tools & Technologies We Use.

Node.jsPythonGraphQLRESTAWS API GatewayRabbitMQApache KafkaRedisPostgreSQLDockerTerraformZapier
Our Process

From Idea to Production.

01

Discovery

We audit your current setup, map requirements, and identify the fastest path to measurable impact.

02

Design

Architecture blueprints, UX flows, and technical specs — reviewed with your team before a line of code is written.

03

Build

Two-week sprint cycles with working demos. You test real software every step of the way, not slide decks.

04

Launch

Production deployment, monitoring setup, team handoff, and a 30-day stability guarantee with priority support.

FAQ

Common Questions.

If it has an API, we can integrate it. We've built integrations with hundreds of platforms including Salesforce, HubSpot, Stripe, Shopify, SAP, Oracle, Workday, Slack, Twilio, AWS services, Google Cloud services, and dozens of industry-specific tools. For systems without modern APIs, we build custom connectors using web scraping, database connections, file-based integrations, or SFTP pipelines. We also build custom APIs for your own systems to enable future integrations.

Related Case Studies.

Industries

Industries We Serve with Integration & APIs.

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Ready to get started with Integration & APIs?

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3Spots LeftMarch 2026