API integration services that hold up in production.

We connect payment systems, CRMs, internal tools, and third-party platforms - with monitoring, security, and proper error handling built in from the start.

Key priorities
ReliabilityPlanned for
MonitoringBuilt in
SecurityIncluded
Third-party systems don't always behave. We build integrations that handle that - with retries, validation, and monitoring included.
What we do

Integrations that don't fall apart under pressure.

Most integration problems come from weak setup, no visibility, and missing safeguards. We cover the details that keep connected systems stable and easy to support.

API structure and data flow

We connect systems with a clear data structure so updates are easier to manage and less likely to cause problems when things change on either end.

Authentication and access

Secure logins, tokens, permissions, and access rules - handled properly so neither usability nor security gets sacrificed.

Webhooks and event handling

Webhook integrations built to handle retries, duplicate events, and the edge cases that only show up in production.

Payment integrations

Stripe and similar payment systems integrated for subscriptions, checkout flows, invoices, and payment-related automation.

Security from the start

Validation, access control, safe credential handling, and protection against common risks - included by default, not added on request.

Monitoring and issue handling

Logs, alerts, and visibility into what's happening so problems get found and fixed before they turn into operational incidents.

Deliverables

What you receive

Integration plan covering systems, endpoints, data flow, and access rules
Webhook setup including verification, retries, and logging
Clear error handling and user-safe messaging
Security setup for validation, credentials, and permissions
Monitoring basics for logs, events, and issue visibility
Documentation showing what is connected and how to manage it
Use cases

Built for real business operations

External systems fail, change, and respond unexpectedly. We build integrations that handle that - so your business keeps running when they do.

Stripe payments, subscriptions, and webhook automation
Booking and ordering systems connected to external tools
CRM integrations for contacts, deals, and customer updates
Internal tools that combine data from multiple APIs
Safer migrations away from legacy systems
Our process

Clear delivery. Clean handover.

We keep integration work transparent from the start - defined data flow, monitoring, security checks, and documentation your team can actually use.

1) Review and requirements
Review the systems involved and their constraints
Map the data flow and likely edge cases
Identify key risks and define the best approach
2) Build the integration
Set up authentication and data handling
Implement webhooks, retries, and logging
Test using realistic scenarios and payloads
3) Test and launch
Review security, validation, and permissions
Check monitoring and how issues are surfaced
Support launch and provide clear handover notes

Need to connect your systems
without the usual headaches?

Tell us what you're trying to connect and where things are breaking down. We'll come back with a clear picture of what needs fixing and how we'd approach it.

CoreLedger Studio - est. 2025

FAQ

Yes. We handle subscriptions, webhook verification, retries, and event handling so payment-related processes are more reliable and easier to support.

Often, yes. We usually begin by reviewing how the system behaves, identifying the weak points, and adding protective layers such as validation, retries, and monitoring.

We add monitoring, logs, and clearer handling around important events so issues are easier to spot and investigate before they create bigger operational problems.

No. Third-party systems can fail and networks can be unpredictable. What we do provide is a setup that handles issues more safely and makes them easier to detect.

That depends on the project. In some cases it can live inside the main app, while in others it makes more sense to separate it into backend or serverless functions for better reliability.