Technology — API Integration

API Integration in Madrid

We build professional solutions with API Integration for businesses across Spain. Expert developers in Madrid, Barcelona, Valencia, Sevilla and more.

Benefits

Why choose API Integration

Discover the key advantages that make API Integration the right choice for your project and how it can drive your business forward.

  • 01/

    System connectivity

    Connect your website, CRM, ERP and third-party tools so data flows automatically.

  • 02/

    Full automation

    Eliminate manual data entry and automate processes between different platforms.

  • 03/

    Secure communication

    APIs with OAuth2 authentication, JWT, rate limiting and data encryption in transit.

  • 04/

    Complete documentation

    APIs documented with OpenAPI/Swagger to facilitate integration by third parties.

  • 05/

    Custom APIs

    Design and development of custom REST and GraphQL APIs to expose your data and services.

  • 06/

    Monitoring & logs

    Monitoring dashboard with logs, usage metrics and error alerts for integrations.

Use Cases

Real-world applications of API Integration

  1. 01/

    Payment gateway integration

    Connection with Stripe, PayPal, Redsys and other gateways for secure payment processing.

  2. 02/

    ERP/CRM synchronization

    Bidirectional integration with SAP, Salesforce, HubSpot or other enterprise management systems.

  3. 03/

    Shipping & logistics APIs

    Integration with SEUR, MRW, Correos and other carriers for automated tracking.

  4. 04/

    Third-party APIs

    Integration with Google Maps, social media, email services and any public or private API.

Tech Stack

Technologies we use with API Integration

  • 01/

    NestJS / Express

    Backend frameworks for robust REST API development.

  • 02/

    GraphQL

    API query language for flexible and efficient queries.

  • 03/

    Swagger / OpenAPI

    Interactive and auto-generated endpoint documentation.

  • 04/

    Postman

    API testing and documentation with shared collections.

  • 05/

    Redis

    Cache and rate limiting for high-performance APIs.

  • 06/

    Webhook / Event-driven

    Event-driven architecture for real-time integrations.

FAQ

Frequently asked questions about API Integration

What types of APIs do you integrate?

We integrate any type of API: REST, GraphQL, SOAP, WebSocket. We work with payment APIs (Stripe, PayPal), logistics (SEUR, MRW), CRM (Salesforce, HubSpot), social media and any service with a public API.

How much does an API integration cost?

A simple integration (payment gateway, email) starts from 1,000EUR. Complex integrations with bidirectional synchronization, webhooks and data transformation can reach 8,000EUR.

Do you develop APIs from scratch?

Yes, we design and develop complete REST and GraphQL APIs with authentication, validation, Swagger documentation and automated tests.

How do you manage API security?

We implement JWT/OAuth2 authentication, rate limiting, data validation, HTTPS encryption, configured CORS and audit logs for all APIs we develop or integrate.

Does it include API documentation?

Yes, all APIs we develop include interactive documentation with Swagger/OpenAPI, Postman collections and integration guide for developers.

Free call

Ready to start your API Integration project?

Contact us today and get a free, no-obligation quote. We specialize in delivering API Integration solutions that drive real business results.

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