Software Development

API Development & Integration Services Connecting Enterprise Systems FAQs

What is the difference between REST and GraphQL?

REST uses fixed endpoints returning predetermined data. GraphQL uses a single endpoint where clients specify exactly what fields they need. REST is better for public APIs; GraphQL is optimal for complex frontends.

How much does API development cost?

Costs range from $6,000 for a simple REST API to $45,000 for a full platform with OAuth, webhooks, and load testing. Enterprise integrations typically cost $5k-$18k per system.

What is OpenAPI and why does it matter?

OpenAPI is the industry standard for describing REST APIs. It enables automatic doc generation, client SDKs, and contract testing. We use a spec-first design process.

How do you handle API versioning?

We use URL-based versioning (/api/v1/) with a 12-month deprecation timeline and clear migration guides to ensure partner stability.

What authentication method should my API use?

API keys for trusted server-to-server; OAuth 2.0 for enterprise and machine-to-machine; JWT for stateless internal auth; and mTLS for high-security services.

Can you integrate with Salesforce or SAP?

Yes. We have production experience with Salesforce, SAP (OData/BTP), HubSpot, Stripe, and Microsoft 365, including bidirectional sync and error handling.