FinFlow Core
Account and transaction screens had to stay fast and secure while many customers used them at the same time.
See the FinFlow Core project
Custom software
API development and integration
We build the connections between your software and the other systems it needs to talk to, from payment providers and CRMs to partner platforms. It suits businesses whose data is re-typed between tools, or that need to offer an API of their own.
API development & integration
In short
- Good for
- Businesses whose systems do not talk to each other
- You get
- APIs documented so any developer can use them. Secure access with proper authentication and rate limits. Webhooks that retry rather than lose an event. Connectors for older systems that have no modern interface.
- You own the code
- You own the full code, designs and documents once the project is paid for.
Examples
What we can build for you
Real jobs api development & integration is used for. Yours does not have to match one exactly.
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Connecting an online store to accounting and shipping
Orders become invoices and shipping labels without anyone re-typing them.
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A public API for your own product
Customers and partners build on your data with documentation and keys.
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Syncing a CRM with marketing and support tools
One customer record, kept in step across the tools each team uses.
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Wrapping an old database in a modern API
Newer apps and websites read data that used to be locked in a legacy system.
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Payment and invoicing integrations
Payments confirmed, invoices raised and receipts sent automatically.
Is this right for you?
A good fit, and when it is not
Honest advice first. If something simpler will do the job, we say so.
A good fit if…
- Staff copy data between systems by hand.
- A partner or customer has asked for an API.
- An old system holds data that newer tools cannot reach.
Probably not a fit if…
- A ready-made connector such as Zapier or Make already does the job reliably. We will point you to it.
Cost
How much does it cost?
It depends on what you need. After a short call we send a quote that shows the price of each part, so you can drop anything you don't need.
Get a free quote
Time
How long does it take?
We agree the timeline in writing before we start. You see and approve something at every step.
How it works
From first call to live software in 4 simple steps
You see and approve something at every step.
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01
We understand your business
We learn how you work today and write down exactly what will be built and what it will cost.
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02
You see the design first
You click through a sample of your app on phone and computer before any code is written.
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03
We build and show progress
You see working parts of your software at regular check-ins.
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04
We launch and hand over
We put it live, set up tracking, and show your team how to use it.
Example project
Something we have built like this
One real project, what the problem was, and what we did.
Questions
Questions people ask about api development & integration
Straight answers, no sales talk.
Do you provide API documentation?
Yes. Interactive documentation (OpenAPI/Swagger) and example requests, so your team or partners can integrate without asking us.
How do you secure an API?
Authentication tokens (OAuth2 or JWT), rate limiting, input validation and logging, agreed with you before the build.
What if a webhook fails?
Events go through a queue that retries and alerts us, so a temporary outage on either side does not lose data.
Can you integrate with a system that has no API?
Often, yes: by reading its database or files and building a proper interface on top. We assess it first and tell you honestly.
For technical teams: tools we use
- Node.js
- Runs fast back-end services and APIs
- Express
- PHP PDO
- Laravel
- The framework we use to build most business software and websites
- Redis
- Swagger/OpenAPI
- Postman
Talk to an Engineer
Get a free quote for api development & integration
A few lines is enough. A senior engineer replies within one working day with a quote that shows the price of each part.