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API Development in France
API Development for businesses in France - designing and building the interfaces that let your systems, partners and apps exchange data reliably. Fixed quote in EUR, a clickable prototype before the build, and the source code in your ownership.
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API Development in France: the short answer
- What it is
- API Development for businesses in France - designing and building the interfaces that let your systems, partners and apps exchange data reliably.
- What it costs
- We quote a fixed price in EUR after a discovery session, broken into phases so you are never committing to the whole build on day one.
- Local specifics
- TVA at the right rate on every invoice, Factur-X e-invoicing through an approved platform ready for the September 2026 reform, Zoho People connected to your French payroll provider for the DSN, French documents where the Loi Toubon requires them, GDPR-aware data handling in Zoho’s EU data centre, and delivery on Paris time (CET/CEST).
- Delivered by
- Shyphan AI Solutions. Support on French working hours (CET/CEST). Call +44 7343 086577.
- Last reviewed
- October 24, 2026
Why French businesses build with Shyphan
- Fixed quote in EUR agreed before a line of code is written
- A clickable prototype before you commit to the build
- Source code, repositories and cloud accounts in your ownership
- Accessible, WCAG-tested interfaces rather than an accessibility audit after launch
- Delivery and support on French working hours, Monday to Friday
What API Development actually delivers
API Development means designing and building the interfaces that let your systems, partners and apps exchange data reliably.
For French teams that matters because teams are often split between a head office and regional sites, so processes that live in one person's head or one person's inbox are a genuine business risk. We build for French businesses exposing data to partners, marketplaces or their own mobile apps, and we say no when a packaged product would do the job better than a custom build.
We work in Node.js, Python FastAPI, .NET, PostgreSQL, Redis, API gateways on AWS and Azure, chosen because they are maintainable and widely supported, so you are never locked to us by an exotic technology choice.
Our certified Zoho team
API Development across France
We deliver API development for clients in Paris, Lyon, Marseille, Toulouse, Lille, Bordeaux, Nantes and Rennes. Projects run remotely on French working hours with on-site workshops in Paris, Lyon and Marseille where discovery or training justifies it.
France runs on trading, contracting, logistics, hospitality and professional services, and almost all of it on lean teams that cannot afford software nobody uses. Whatever the sector, the failure mode is the same: software built without the people who use it, and abandoned within a year. Discovery is where we prevent that.
Most clients look at these next: API Development in Paris, Ecommerce Development in France and Marketplace Platform Development in France.
The stack we build on
Chosen for maintainability and for the fact that you, or anyone you hire later, can work on it. Nothing exotic that only we can support.
Getting API Development right in France
Software for French businesses has to handle TVA, e-invoicing, the French language and GDPR from the first release. This is how we approach API Development.
TVA and e-invoicing by design
Anything that bills applies the right TVA rate, carries the mandatory invoice mentions and can produce Factur-X for exchange through an approved platform.
French and English
Interfaces, documents and notifications work in French and English, with French by default for users in France.
Hosting in the EU
Hosting in an EU cloud region, often in France, where your customers or sector expect it, documented with access and retention.
GDPR and the CNIL
Consent, cookie rules, access requests, breach records and impact assessments are designed in, not bolted on.
How a API development project runs
Five stages, a prototype before the build commitment, and a fixed price in EUR agreed up front.
Discovery and scope
Workshops with the people who will use it, a written scope and a fixed price in EUR before anything is built.
Prototype before build
A clickable prototype you review and change cheaply, so disagreements happen in Figma rather than in code.
Build in two-week increments
Working software you can see and use every fortnight, with priorities you can change between increments.
Testing and UAT
Automated tests on the paths that matter plus scripted UAT on your own scenarios before release.
Launch, handover and support
Deployment into your own cloud account, documentation, training and an optional support retainer on French working hours.
Industries we serve in France
From technology and finance to manufacturing, healthcare, retail and professional services.
Backed by a certified Zoho team
Our consultants are certified across Zoho CRM, Books, One, Creator, Analytics and People, and we stay active in the Zoho community, including Zoholics. You work with senior people who know the platform inside out.
From discovery to go-live and ongoing support, the same team stays with you, available on Paris time (CET/CEST) by call, email and screen-share.
Whether you are moving off spreadsheets or scaling an existing Zoho setup, our certified team does the heavy lifting and trains yours to own it with confidence, so your investment keeps paying off long after go-live.
Trusted by teams worldwide
What French clients typically get
Typical outcomes on our French projects. Every engagement is scoped to the business.
Built for French users
French and English, accessibility and GDPR designed in from the first screen.
Software you own
Full source code, documentation and deployment scripts handed over, so you are never dependent on us to make a change.
Support on French hours
Sprint demos, releases and support overlapping CET business hours, with a fixed, phased quote in EUR.
Related pages you may want next
API Development France: questions answered
Can API Development produce French e-invoices?
Can API Development be hosted in France or the EU?
What makes an API worth paying for?
Can you build an API over a legacy system?
Do you provide a partner sandbox?
How much does API development cost in France?
What happens after launch?
Which hours do you work?
Do you sign an NDA before we share our data?
Can you build in French as well as English?
More on API Development in France
Related development services in France
Ready to scope your API development project?
Book a free discovery call. We will tell you whether this should be custom at all, and if it should, what it will realistically take.
- Fixed quote in EUR
- Prototype before build commitment
- Source code in your ownership
- Support on French working hours
