LainDS
services

// apis · integrations · peru

API & Integrations Development in Peru

Get your systems talking to each other and to third parties — no manual work, in real time.

The value often isn’t in a brand-new system, but in connecting the ones you already have. We build APIs and integrations so data flows between your operation and the systems it depends on: ERP (such as SAP), payment gateways, RENIEC, SUNAT, or any third-party service.

It’s one of our specialties — and one of the pieces that makes the biggest difference, because those connections specific to your business don’t exist in any catalog.

// what we do

What the service includes.

  • Integration with your systems

    ERP (SAP Business One), CRM, billing, logistics — we connect your operation end to end.

  • Government entities

    Identity validation with RENIEC, electronic invoicing with SUNAT and the services your operation needs.

  • Well-designed APIs of your own

    REST, GraphQL and real-time (WebSockets). APIs that your own systems and third parties can consume securely.

  • Real-time and volume

    Designed to validate and sync at scale and in real time, with authentication and traceability.

stack:
  • REST
  • GraphQL
  • WebSockets
  • Node.js / NestJS
  • Java / Spring
  • SAP B1
  • RENIEC

// how we work

From the first meeting to production.

  1. 01

    Define the contract

    Before any code: which data travels, in which direction, how often, and who wins when the two sides disagree. Most integrations that fail do so because nobody answered that last question.

  2. 02

    Get the access

    Credentials, agreements and test environments. With entities like RENIEC or SUNAT this is an administrative process whose timeline is not up to anyone on the team, so we start it on day one and build in parallel.

  3. 03

    Design for failure

    Every integration goes down at some point. We design with idempotency, backoff retries and a queue, so a network drop does not duplicate an invoice or lose a payment.

  4. 04

    Build and test against the real thing

    Sandbox first, then a controlled test against the real environment. It is one extra day of work that avoids discovering in production that the behaviour was not the documented one.

  5. 05

    Monitoring and reconciliation

    Alerts when something stops answering, and a periodic cross-check between what your system says and what the other one says. Without that cross-check, an integration can sit broken for weeks unnoticed.

When an integration is not the answer

If the system on the other side exposes no API and allows no export, there is no integration possible however good the proposal looks: what there is, is screen scraping, which breaks on its own and we do not recommend it. If what you need is to bring data over once for a migration, an exported file is far cheaper than building a permanent pipeline. And if there is nobody on the other side who can answer a technical question, the project will stall there no matter how much we do on ours.

  • Senior engineering

    Whoever designs your system writes it. No juniors learning at your expense.

  • The code is 100% yours

    We hand over the repository and the documentation. No lock-in.

  • Honesty

    We tell you where it’s not worth spending — even if that’s hiring us.

// real cases

Systems we’ve already built.

Want to go deeper? How to integrate identity validation with RENIEC.

// frequently asked questions

What people usually ask us.

How long does an integration take?

The technical part of a standard integration usually runs 3 to 8 weeks. What stretches the timeline is almost always the rest: getting credentials, signing an agreement, or waiting on a third party’s test environment. That is why the paperwork starts before the code.

What happens if the third party changes its API?

It happens, and you plan for it. We isolate integrations behind a layer of our own, so a provider change is absorbed in one place instead of spreading across your system. Monitoring warns you before your users do.

Can you integrate a legacy system with no API?

Often yes, if it exposes a database, files or some exchange mechanism. We assess it before promising anything: if the only route would be simulating a user on a screen, we tell you no.

How do you prevent duplicated operations?

With idempotency: every operation carries a unique identifier, and repeating it returns the first result instead of running again. It is what stops a retry from charging twice or issuing two documents.

Do you integrate with SAP, RENIEC or SUNAT?

Yes. We’ve integrated production systems with SAP Business One (for automated invoicing), with RENIEC (for real-time identity validation) and with government services. Each integration is designed around your operation.

REST or GraphQL?

Whichever best serves your case. We work with REST, GraphQL and real-time communication (WebSockets), and we recommend the approach based on how you need to consume the data.

Can you validate in real time and at scale?

Yes. We design integrations to operate in real time and at volume, with authentication and a record of every operation — as we did validating receipts against RENIEC in the UNJFSC case.

Let’s talk about your project.

You talk with the engineer who’d design your system, not a salesperson. No strings attached.