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Yesinfosolutions
Legacy & integration

APIs, and the systems that don't have one, connected properly.

Integrating with well-documented APIs and building around systems that don't have one at all.

Some integrations are straightforward: a well-documented API and a clear authentication scheme. Others involve a system with no API, thin documentation, or behavior that only becomes clear by testing against it directly. We handle both, and we don't treat the absence of an API as a reason the integration can't happen.

What this involves

Capabilities.

Integration with REST, SOAP and GraphQL APIs
Authentication handling across OAuth, API keys and legacy schemes
Rate limit and quota management for third-party API constraints
API wrapper construction for systems with no usable API
Where it connects

Fits into what you already run.

Third-party SaaS platforms and services
Payment, banking and government APIs
Internal systems exposing or consuming APIs
Legacy systems requiring a custom integration approach
How we approach it

Four steps, not a leap.

01

Understand the API's real behavior

Documentation gets verified against how the API actually responds.

02

Design around its constraints

Rate limits and quirks shape the integration, not just the happy-path docs.

03

Build resilience in

Retries and fallbacks handle the inevitable API downtime or change.

04

Test against production-like conditions

Integration testing includes the failure modes, not just successful calls.

Let's talk

You bring the problem.We figure out the technology.

No sales pressure. We will first understand what you are trying to fix, then tell you honestly how we would approach it, including when the answer is simpler than you think.

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