Custom REST APIs
Endpoints for your own apps, frontends or partners, with clear authentication.
API DEVELOPMENT & INTEGRATIONS
Connect Your Systems With Reliable API Integrations
When your website, CRM, payments and internal tools do not talk to each other, someone ends up copying data between them. We build the APIs and integrations that remove that step.
Overview
APIs that hold up in production
Integration work looks simple until something goes wrong. A third-party service times out, a rate limit is hit, a webhook fires twice, or a field arrives empty that has never been empty before. The difference between an integration that works and one that quietly loses data is how those cases are handled.
We build REST APIs and third-party connections with that reality in mind: sensible authentication, validation, retries where appropriate, and logging so you can see what happened rather than guess. When something fails, it fails visibly.
We also build APIs for your own products — clean endpoints your mobile app, frontend or partners can rely on, documented well enough that another developer can use them without asking you questions.
What we build
Connections and endpoints
Third-Party APIs
Connections to payment providers, messaging platforms, CRMs and business tools.
Webhooks
Receiving and processing events from other platforms reliably.
Payment Integrations
Checkout, subscriptions and payment provider connections.
CRM Integrations
Keeping customer and lead data consistent across the tools you use.
Data Synchronization
Moving records between systems so both stay accurate without re-entry.
What's included
What integration work covers
- Requirements reviewUnderstanding what data needs to move, in which direction, and how often.
- AuthenticationAPI keys, tokens and access control set up properly.
- Endpoint developmentClear, consistent endpoints with predictable responses.
- Data mappingMatching fields between systems that name things differently.
- Error handlingSensible behaviour when a service is slow, down or returns something unexpected.
- Logging & monitoringVisibility into what ran, what succeeded and what needs attention.
- DocumentationWritten reference so your team or another developer can work with it.
- TestingVerifying real payloads and failure cases, not just the ideal request.
Approach
How integration projects run
- 01
Discovery
We review both systems and confirm what is actually possible with their APIs.
- 02
Mapping
Fields, direction of sync and rules for conflicts agreed in writing.
- 03
Development
Endpoints and connections built against a test environment.
- 04
Testing
Real data, edge cases and failure scenarios checked before go-live.
- 05
Deployment & Monitoring
Released with logging in place, then watched during early runs.
Capabilities
What we work with
- REST APIsDesign, development and consumption of REST services.
- AuthenticationAPI keys, OAuth flows and token-based access.
- WebhooksReceiving and processing events from other platforms.
- PaymentsPayment gateway and subscription billing integrations.
- Business toolsCRM, e-commerce and operational system connections.
- BackendPHP / Laravel services and scheduled jobs.
Why LimeTechSolution
Why this work benefits from care
We plan for failure
Third-party services go down and send unexpected data. Integrations we build handle that visibly rather than losing records quietly.
Documented, not mysterious
You get written documentation of what connects to what, so the integration is not a black box only we understand.
Honest about limits
If a platform's API cannot do what you need, we will tell you early instead of billing you to find out.
FAQ
API and integration questions
Can you connect to any platform?
Only if it offers an API or a supported export method. We check that first — if a platform is closed, we will tell you before any work starts.
What happens if the other service goes down?
We build in sensible handling: retries where safe, clear logging, and alerts so a failure gets noticed rather than silently dropping data.
Can you build an API for our own product?
Yes. We design and document REST APIs for mobile apps, frontends and partner access.
Do you handle two-way syncing?
We can, though it needs clear rules about which system wins when both change the same record. We agree that before building.
Will we get documentation?
Yes. Endpoint reference and a written description of how the integration behaves are part of the delivery.
Can you fix an integration someone else built?
Often. We would review it and tell you whether it is better to repair or replace.
Systems Not Talking to Each Other?
Tell us which platforms are involved and what data needs to move. We will confirm what is possible and how we would approach it.
Discuss Your Project