EVOTECH digital · custom software · Software Development

API Development and Integration Services

APIs are the connectors that let your systems talk to each other and let apps pull the data they need. We design and build REST and GraphQL APIs, and integrate the ones you already depend on.

5.0· 14 Google reviews

What an API does for your business

An API is a defined way for software to exchange data and trigger actions. It's what lets your website read from your database, your mobile app talk to your server, and your tools sync instead of forcing someone to copy data by hand. Good APIs turn separate systems into one connected operation.

  • Connect your app's front end to its data
  • Sync between separate tools and systems
  • Expose your data to partners securely
  • Power mobile and third-party apps
  • Replace manual copy-paste between systems
  • Enable automation across your stack

REST, GraphQL, and integrations

REST is the widely understood default and fits most needs. GraphQL lets clients request exactly the data they want in one call, which helps complex apps with many data types.

We pick based on your use case, and we're just as often integrating existing third-party APIs like payments, shipping, and CRMs as building new ones from scratch.

  • REST APIs for broad compatibility
  • GraphQL where flexible, precise queries matter
  • Third-party integrations: payments, CRM, shipping, and more
  • Webhooks for real-time events
  • Clear documentation for whoever consumes the API
  • Versioning so changes don't break existing clients

Built to be secure and reliable

An API is a door into your data, so how it's secured matters as much as what it does. We build in authentication, rate limiting, and validation, and we document everything so other developers can use it without guesswork.

  • Authentication and access control
  • Rate limiting and abuse protection
  • Input validation and clear error handling
  • Monitoring and logging
  • Documentation developers can actually follow
  • A design that can evolve without breaking users

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Frequently asked questions

REST or GraphQL, which do I need?

For most projects REST is the pragmatic choice. GraphQL shines when clients need to fetch varied, nested data efficiently. We recommend based on your app, not a preference.

Can you connect software we already use?

Usually. If a tool offers an API, we can integrate it so your systems share data automatically instead of relying on manual exports and re-entry.

Will other developers be able to use the API?

Yes. Clear documentation is part of the work, so whether it's your team, a partner, or a mobile app, they'll have what they need to build against it.

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