API Integration

API and systems integration for your company

When your systems talk to each other, rework disappears. We connect ERPs, e-commerce, payment gateways, marketplaces and tools so information flows automatically.

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Every isolated system is an island of data. When your e-commerce doesn't talk to the ERP, when finance doesn't receive orders automatically, when the team types the same data in three places — that's wasted time and guaranteed error. API integration solves this by connecting systems so they exchange data on their own.

Index Group integrates platforms and develops custom APIs. Whether consuming a third-party API or building your own, we bridge your operation's systems.

Integration between ERP, e-commerce and finance
Marketplace connections (Mercado Livre, Amazon, etc.)
Payment gateways and electronic invoicing
Custom REST APIs for your system
Automatic stock and order synchronization
Webhooks, queues and reliable async processing

Automatic sync

Stock, orders and records updated in real time across systems.

Payment gateways

Integration with Stripe, Mercado Pago, PagSeguro, Asaas and more.

Marketplaces

Connection with Mercado Livre, Amazon, Magalu and major marketplaces.

Invoicing

Automatic electronic invoice issuance integrated into your sales flow.

Custom APIs

Development of your own REST APIs to expose or consume data.

Security

Authentication, tokens, encryption and best practices in every integration.

What API integration means in practice

An API is how two systems exchange information automatically. In practice, integrating APIs means having your e-commerce notify the ERP of a sale, the ERP deduct stock, the gateway confirm payment and the system issue the invoice — all without anyone typing manually.

It's the difference between an operation that scales and one that jams as it grows.

We integrate with what you already use

You don't need to switch systems to gain integration. In most cases we connect the tools your company already uses. And when a system has no ready API, we build the necessary integration layer.

The result is an operation where information flows on its own, with no rework and no typing errors.

FAQ

Frequently asked questions

What's needed to integrate two systems?

Generally, systems need to offer an API or integration point. We review each one's documentation and build the bridge. When there's no ready API, we create the necessary layer.

Do you integrate with any marketplace or gateway?

We work with the market leaders (Mercado Livre, Amazon, Mercado Pago, Stripe, PagSeguro and others) and can integrate any platform that offers an API.

Is the integration reliable? What if the API goes down?

Yes. We implement queues, reprocessing and error handling so that even if a service is temporarily unavailable, no information is lost.

Do you build your own APIs?

Yes. We develop custom REST APIs to securely expose your system's data to partners, apps or other systems.

Ready to bring your project to life?

Request a no-obligation proposal. We reply within 2 business hours.

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