API integration that lets every system in your business work together
If your team still re-types data between the storefront, back office, accounting software and LINE OA, we connect those systems so data flows on its own: taking payments, notifying customers, booking couriers, issuing tax invoices and putting AI to work on daily tasks. Every integration is built to handle failures gracefully and logs everything, so you can always trace what happened.
- No more re-typing data between systems
- Tested in sandbox before going live
- Logging and alerts when an integration fails
- You own the source code and API docs
What we build
Custom API development
REST or GraphQL APIs that let your apps, website and partners share data, with OpenAPI docs, authentication and access control.
Payment gateways & PromptPay QR
PromptPay QR, cards and mobile banking, with automatic confirmation via webhooks, reconciliation and refunds.
LINE OA & LINE APIs
LINE Login, Messaging API and LIFF for order updates, appointment reminders and promotions, or a chatbot for common questions.
Logistics, accounting & e-Tax Invoice
Courier bookings and tracking numbers created automatically, sales pushed to your accounting software, and e-Tax Invoice / e-Receipt providers connected.
AI / LLM integration
AI that summarises documents, classifies messages or answers questions from your own manuals, with control over what data leaves your system and what it costs.
ERP & legacy system sync
Data synced with your ERP, older in-house software or databases with no API, through a connector layer that leaves the original system intact.
What you get
- Data flow and field mapping between systems
- API documentation in OpenAPI / Swagger
- Webhooks with retries and idempotency, so nothing is charged or recorded twice
- Secure storage of API keys and secrets, with least-privilege access
- Testing in each provider’s sandbox before production
- Rate-limit handling and queues for endpoints with limited capacity
- Logging of every transaction with alerts on failure
- Source code and provider accounts in your name
How it works
- 1
Map the systems and data
We review source and target systems and each provider’s API docs, and list what you need to prepare, such as a merchant account or LINE OA.
- 2
Design the data flow & spec
Which way data moves, real-time or batch, field mappings, and what happens when the other side is down or data is incomplete.
- 3
Build & test in sandbox
We build the integration and test the happy path and the failures: declined payments, duplicate webhooks, timeouts.
- 4
Go live & monitor
A staged rollout to production, with logs reviewed and alerts set so the team knows immediately when something breaks.
- 5
Hand over & maintain
Code and documentation handed over, plus updates when a provider changes its API version or terms.
What affects the price
Integration cost depends on how many systems are involved and how complex each connection is. We give you a free, itemised estimate after reviewing the APIs you want to connect.
Number of systems and connections
Adding one payment provider is very different from linking an online store, couriers, accounting and an ERP together.
Readiness of the other system
A well-documented API takes far less time than a legacy system that has to be reached through its database or file exports.
Direction and frequency
One-way or two-way sync, real-time or scheduled, and the daily volume of data.
Business rules
Reconciliation, refunds, per-branch billing or validation rules that must run before data is sent.
Third-party fees
Per-transaction payment fees, LINE OA messaging plans or AI usage are paid directly to each provider.
Technology
RESTGraphQLWebhookOAuth 2.0OpenAPINode.jsGoPythonLINE Messaging APIMessage QueueFrequently asked questions
Usually, yes. Options include building an API on top of the existing database or exchanging files on a schedule. We assess the system first and recommend the lowest-risk approach without replacing what your team relies on. If the old system is holding the business back, see ERP / POS / CRM systems.
Quite a lot: customer login with LINE, automatic order or appointment notifications, a rich menu linked to your member system, web pages inside LINE via LIFF, or a chatbot for common questions. Messaging costs follow the LINE OA plan you are on.
A merchant account with a supporting payment gateway or bank, which we can help you compare and apply for. We then have your system generate a QR for the exact amount and confirm payment automatically via webhook, so nobody has to check transfer slips by hand.
Yes. Good use cases include summarising documents, triaging customer messages and answering questions from company manuals. We send only the data that is needed, mask personal data where possible in line with PDPA, set spending limits and keep a human review step where results affect customers.
Most providers announce deprecations in advance. We keep integration code separate from your core system so it can be updated quickly, and alerts fire when a connection fails. To have us keep integrations up to date, see maintenance & continuous development.
Tell us your idea, and let’s build it together
Share a few details and our team will get back to you within 24 business hours with an approach and a free estimate.
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