The sovereign
developer cloud.
A fortress for modern web, web3 and agent workloads. Developer-first, EU-sovereign, flat-rate, built greenfield for the next decade, not the last one.
Web, web3 and agents, without compromise
The clouds you know make at least one of these awkward. Citadea is built for all three.
Modern web apps
Git-push full-stack hosting on ephemeral micro-VMs, with sovereign object storage and a predictable bill.
Learn moreWeb3 nodes & RPC
First-class multi-chain node and RPC hosting with archive data, transparent pricing and EU residency.
Learn moreAutonomous agents
Native MCP, isolated SandBox execution, sovereign vector memory and flat-rate inference for agent fleets.
Learn moreEvidence, not slogans
Pre-launch targets for the figures engineers actually evaluate, cold start, latency, energy and chain coverage.
A cloud that respects and protects you
Verifiable sovereignty
EU jurisdiction, no US parent, no Cloud Act exposure. Your data, keys and agents stay in France and the EU, with a documented SecNumCloud path.
Developer-first
One CLI, git-push deploys, sane defaults and no lock-in. The platform treats developers as the customer, not an afterthought.
Predictable pricing
Flat-rate slices instead of token shock. Predictable egress. A bill your CFO can forecast, no surprise inference invoices.
Zero-legacy & agent-native
Firecracker micro-VMs, eBPF networking, native MCP. A greenfield 2026 stack built for web, web3 and autonomous agents, no OpenStack debt.
Everything you need, behind one CLI
Nine building blocks across compute, AI, agents, web3 and sovereign storage.
App Platform
Git-push full-stack hosting, sovereign by default
Neural
Dedicated LPUs for flat-rate inference
Nodes & RPC
Sovereign multi-chain nodes and RPC endpoints
Core-VM
Firecracker micro-VMs in under 50 ms
Agent Hosting
Flat-rate hosting for autonomous agent fleets
Object Storage
S3-compatible, encrypted, replicated in the EU
Greenfield, zero-legacy, agent-native
Firecracker micro-VMs, eBPF networking and a native MCP edge, no OpenStack debt underneath.
Sovereign edge
- Anycast termination
- Native MCP gateway
- DDoS protection
Control plane (Toulouse)
- Firecracker scheduler
- eBPF / Cilium network
- Customer sovereign keys
Workloads
- Core-VM & App Platform
- Neural LPUs & SandBox
- Nodes, Memory & Storage
France-first, EU-wide
Sovereign points of presence across France today, with an EU-wide roadmap.
France
Europe
Honest comparisons, not marketing
We benchmark against the best in each category, and tell you when to choose them instead.
Answers for engineers and buyers
What is Citadea?
Citadea is the sovereign developer cloud, a fortress for modern web, web3 and agent workloads, operated by Yggdrasil Digital SASU from Toulouse, France.
Are you exposed to the US Cloud Act?
No. Citadea is a 100% European company with no US parent, so it falls outside the reach of the US CLOUD Act, unlike US hyperscalers and their EU subsidiaries.
How does pricing work?
Predictable monthly flat rates, not per-token roulette. Use the token-shock calculator on /pricing to compare against hyperscaler inference.
What is "token shock"?
The unpredictable invoice you get when per-token AI pricing meets a multi-agent reasoning loop. Citadea Neural and Agent Hosting use flat rates to remove it.
Can I deploy a web app from git?
Yes, App Platform builds and deploys full-stack apps from a repository, with preview deployments and automatic HTTPS.
Which chains do Nodes & RPC support?
Major EVM and non-EVM chains, with archive data, WebSocket and trace/debug. Dedicated or shared endpoints, EU-hosted.
What is the support SLA?
15-minute tier-1 engineer response for Enterprise, 24/7/365, a systems engineer, not a script.
Is there a CLI?
Yes, one CLI drives everything. Install and quickstart commands are on /docs; public beta is coming soon.
Build on a cloud that respects you
Join the waitlist or talk to an engineer about your web, web3 or agent workloads.