Everything is a plugin
Fully Managed DeepSeek Harness Hosting
Run DeepSeek's open-source agent harness on a server we set up, secure and keep online. Every capability stays a plugin you can swap, and every run stays a session log you can replay.
- Set up and running, reachable on your own domain
- 24/7 expert support
- No lock-in, cancel anytime
Agent = Model + Harness
The model is the soul. The harness is the body.
A harness is what lets an agent understand its environment, use tools and keep working in real-world settings. DeepSeek built theirs so that no part of it is welded shut.
A kernel that mounts plugins
The Cordis kernel manages plugin mounting, unmounting and dependencies. The agent's capabilities live in the plugins, not in the core.
Every capability is a plugin
Models, tools, skills, sessions, sandboxes, storage, loops, scheduling and the UI are all plugins, wired together by Cordis services and events.
Composed in configuration
Select, swap or extend any capability in configuration, without changing the DeepSeek Harness source code or maintaining a fork.
Simple Pricing. Everything Included For Your Agent Harness.
xCloud provides a stable, fully managed hosting layer so your harness stays online, responsive and production-ready at all times.
$19.99/mo
Renews at $39.99/mo. Cancel anytime.
Deploy the harness- Deployed and running in ~5 minutes
- Free SSL, set up and renewed for you
- Security patches and updates managed
- One-click restore, 30+ server locations
- Memory
- 16 GB RAM
- Processor
- 6 vCPU cores
- Storage
- 200 GB NVMe SSD
- Bandwidth
- 30 TB
- Agents
- Unlimited
Every size is a dedicated, fully managed Cloud VPS — we provision it, patch it, monitor it and restore it. Cancel any time.
Why xCloud
Install It Yourself, or Have It Running Today
The harness is a joy to run locally and a chore to run properly. The chore is the part we take.
Scroll the table sideways to compare.
| Self-hosted by hand | Managed on xCloud |
|---|---|
| Provision the box, install Node, keep both patched | Server provisioned, patched and monitored for you |
| It serves on 127.0.0.1 only, so it is unreachable remotely | Reverse proxy configured, so your own domain answers |
| Issue and renew your own certificate | Free SSL, provisioned and renewed automatically |
| A crash stays down until you notice and SSH in | Supervised, so a crash restarts it |
| Sessions, skills and keys on a laptop that gets lost | On persistent disk, with backups you schedule |
| Hours before the first prompt runs | Deployed in minutes, from 30+ server regions |
Four Runtime Modes, and a Record of Every Run
Pick the mode that fits the job, then read back exactly what happened. Both halves are DeepSeek's design, not a layer we added.
Standard mode
Full coding agent with file editing, shell, file and web search, skills, planning, goals, subagents and workflows.
Code mode
Everything Standard has, with tools exposed through the Code Mode SDK so the model can combine multi-step operations in one TypeScript program.
Minimal mode
A two-tool coding agent with persistent bash and a file editor, for benchmarking a model in a minimal environment.
Creator mode
Built for authoring custom presets, with runtime inspection, in-memory plugin experiments and preset-authoring guidance.
Append-only session log
System prompts, reasoning, tool calls and results, subagent scheduling and every context injection are all recorded.
Trajectory view
Inspect what the model saw, by source, instead of guessing why it did what it did.
Resume, fork and replay
All of them operate on the same event stream, so a run can be picked up, branched or re-run.
Search across runs
The log is the interface. Find the run where it worked, and the one where it did not.
Everything You Need to Keep an Agent Harness Alive
The parts that make a harness durable rather than a demo, and all of them managed for you.
Reachable and encrypted
The harness serves on localhost by design. We put a proxy and a renewing certificate in front, so your domain answers over HTTPS.
Supervised and backed up
Restarted if it dies, brought back after a reboot, with sessions, skills and settings on disk you can back up on a schedule.
Patched and monitored
Security updates, firewall rules and server monitoring handled from the same dashboard as the rest of your infrastructure.
Bring Your Own Model. We Run The Server.
Connect the provider you already pay for. Anthropic (API key or Claude Code CLI token), OpenAI, OpenRouter, Moonshot AI (Kimi) and Gemini are supported today; Grok, xAI and Mistral are coming.
Deliver Fast Experiences Anywhere In The World
Launch applications closer to your users across multiple global regions for reliable performance and low latency worldwide.
Global Reach....
- 162,368 Sites
- 100% Uptime
- 31 Locations
Hear what people are saying about us
See why agencies, developers, startups, and growing businesses choose xCloud to power their projects.
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Rahil MaknojiaCame from runcloud. Tried xcloud and never came back.
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Blaine MooreFrequently Asked Questions
Feel free to contact us with any questions or concerns you may have.
What is DeepSeek Harness?
DeepSeek's open-source agent harness, published under the MIT licence. The model is the soul of an agent; the harness is what lets it understand its environment, use tools and keep working in real settings. It is built on the Cordis plugin system, so every capability including models, tools, skills, sessions, sandboxes, storage, loops, scheduling and the UI is a plugin you can swap.
Is DeepSeek Harness ready for production?
DeepSeek describes it as a developer preview and says its core plugins and APIs will continue to evolve. We host it as it is rather than claiming otherwise. Managed hosting removes the server, the proxy, the certificate and the restarts, so the only moving part left is the one you chose to take on.
Do I need Docker or technical skills?
Not to get it running. xCloud provisions the server, installs the harness, configures the proxy and SSL and supervises the process. You do need to know what you want the agent to do, and to review what it does when it has a shell.
Why can I not just run it on my laptop?
You can, and it is the right way to try it. The gap opens when you want it working with the lid shut. It is also worth knowing that the harness serves its Web UI on 127.0.0.1 and the CLI refuses to bind wider, so remote access needs a reverse proxy on the same machine rather than an open firewall port.
Do I need a DeepSeek API key?
Only to use DeepSeek's models. The harness is provider-neutral: its catalogue covers Anthropic, OpenAI, Bedrock, Vertex and Azure, and a custom provider accepts any OpenAI-compatible endpoint, including a model running on your own server. xCloud never marks up your LLM costs.
Is DeepSeek Harness a one-click app on xCloud?
Not today. It is installed and configured on a Cloud VPS as a managed service rather than picked from the One-Click Apps list. If a one-click entry ships later, existing servers do not need to move.
Can I install my own plugins?
Yes, and it is the point of the project. Plugins are ordinary packages installed into a profile, DeepSeek maintains a discoverability topic for community ones, and you have a shell on your own server.
Can I resize the server later?
Yes. Move up or down the six Cloud VPS sizes as the workload changes; the harness and its session history come with it.
Can I cancel anytime?
Yes. There are no contracts. Because the harness runs on a fully managed xCloud server, on cancellation you are charged for server usage up to that date plus up to a 10% Stripe fee on the used amount.
Stuck On Something? Every Route To A Human Is Here
Ready To Run a Harness You Can Actually Read?
Open source, MIT licensed, every capability a plugin, on a server we keep online for you.
