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Devlumio

Service

API & System Integrations

Integrations fail quietly and at the worst time. We build them with retries, idempotency, and monitoring, so a third-party outage is an alert rather than a support queue.

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RESTGraphQLOAuth 2.0WebhooksOpenAPI

What you get

Included in this service

  • Payment, CRM, and ERP connections
  • Custom REST and GraphQL APIs with documentation
  • Bridges to legacy and on-premise systems
  • Webhook infrastructure with retry and replay
  • Rate-limit, retry, and idempotency handling

What it changes

  • Integrations that survive an outage

    Retries, dead-letter queues, and replay mean a provider going down does not lose your data.

  • APIs other teams can use

    Documented with OpenAPI, versioned, and shipped with a sandbox so partners can self-serve.

  • Visibility into every hand-off

    Request logs and dashboards that tell you exactly where a record stopped moving.

How we work

The same four steps, every project

You always know what is happening, what it costs, and what comes next.

  1. 01

    Discover

    We map your goals, users, and scope, then agree on a clear plan and budget.

  2. 02

    Design

    Wireframes become polished, clickable designs you approve before any code.

  3. 03

    Develop

    We build in short milestones with working previews you can test along the way.

  4. 04

    Launch

    We ship to production, hand over the keys, and support what comes next.

Also available

Other things we build

Ready to talk about your API and system integration project?

Send a short brief. We reply within one business day with questions, a plan, or both.