Your APIs, web services and servers, built to measure.
APIs, web services, IoT and blockchain: we build the foundations that connect your systems.
They trust us.
They trust
us.
Startups, mid-caps, large enterprises, public sector: Kosmos supports organisations of every size in building their web, mobile and AI applications.
We connect your systems to one another.
From bespoke APIs to real-time IoT streams, all the way to smart contracts: we architect, secure and operate the server layer that keeps your data flowing, at scale and over the long term.
APIs & integrations
Beyond the simple endpoint: we design robust, documented and observable APIs that connect your services, your partners and your applications without friction.
- REST & GraphQL — OpenAPI contracts
- Webhooks & real-time events
- Third-party integrations (payment, CRM, ERP, etc.)
- OAuth 2.0 / JWT authentication, versioning & rate limiting
IoT & connected devices
From sensor to dashboard: we collect, harden and put to work your fleet's telemetry in real time, even when the network is unreliable.
- MQTT & LoRaWAN protocols
- Edge processing & real-time ingestion
- Remote telemetry, monitoring & alerting
- OTA firmware updates
Blockchain & Web3
We move past the hype: audited smart contracts and tamper-proof ledgers, wherever traceability and trust truly add value.
- Audited smart contracts (Solidity / EVM)
- Tokenisation & ERC-20 / ERC-721 standards
- On-chain traceability & certification
The best technologies for your communications and transactions.
We master the best services and technologies to develop, maintain and scale your communication and transaction systems.
Entrust your project
to our experts.
Entrust your project to our
experts.
Entrust your project
to our experts.
Our experts build your project, delivering superior technical and functional quality within shorter timeframes.
Innovation Tax Credit
Naxan Group is CII-accredited: your company can claim a tax credit on the outsourced costs of developing a solution that is new and innovative in its reference market.
20%of outsourced development costs
Bpifrance Innovation expert
Kosmos works within the “Diag Axes d'Innovation” programme: we help SMEs and mid-caps identify their innovation paths and assess the feasibility of their projects, upstream.
50%of the diagnostic subsidised by Bpifrance
8 years of success,
by your side.
8 years of passion, boldness and innovation! Projects, challenges and successes. All thanks to you.
- Since
- 2018
- Years
- 08
They talk about us.
Explore the mentions and analyses that spotlight our work and our innovations across the business and tech press.
Let's discuss your project.
Describe your project. Our team replies within 24 hours with free technical scoping, along with a clear estimate of costs and timelines. No commitment.
- Reply within 24 hours from a project manager
or engineer.Reply within 24 hours from a project manager or engineer. - Technical scoping and quote, with no fees.
- No commitment, your data stays
confidential.No commitment, your data stays confidential.
Monday to Saturday · 9am to 6:30pm
hello@kosmos-digital.com
Paris · Lyon · Marseille · Nice · Geneva
Your company may qualify for a tax credit equal to 20% of the costs linked to developing its solution.
Free scoping & estimate in less than 24h
Describe your project and we'll get back to you with a costed estimate and a roadmap.