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Langflow VPSYour AI agents, on your own server

  • Langflow deployed for you with One Click Apps
  • HTTPS on a generated address or your own domain
  • Daily backups and updates from the console
  • Hosted in France, 24/7 support
Get startedTalk to an expert
Deployed for you
Langflow and PostgreSQL ready
Visual editor
Agents and RAG by drag and drop
Automatic HTTPS
Let's Encrypt certificate included
24/7 support
From real people

Pick your Langflow VPS

Langflow is deployed with One Click Apps on every plan on this page. Pick a range, then the size that suits you.

Operating system
  • Ubuntu26.04 · 24.04 · 22.04
  • Debian13 · 12 · 11
Pick one when you order

VPS delivered in 10 seconds

  • HP-4
    Processor2 vCPUAMD EPYC 9554
    Memory4 GBDDR5
    Storage40 GB NVMeor 80 GB SSD
    Network1 Gbps
    €6.39excl. VAT/month
    €7.99Save 19€/year
    Choose
  • HP-8
    Processor4 vCPUAMD EPYC 9554
    Memory8 GBDDR5
    Storage80 GB NVMeor 160 GB SSD
    Network1 Gbps
    €12.79excl. VAT/month
    €15.99Save 38€/year
    Choose
  • HP-16Most popular
    Processor8 vCPUAMD EPYC 9554
    Memory16 GBDDR5
    Storage160 GB NVMeor 320 GB SSD
    Network1 Gbps
    €25.59excl. VAT/month
    €31.99Save 77€/year
    Choose
  • HP-32
    Processor16 vCPUAMD EPYC 9554
    Memory32 GBDDR5
    Storage320 GB NVMeor 640 GB SSD
    Network1 Gbps
    €51.19excl. VAT/month
    €63.99Save 154€/year
    Choose
  • HP-64
    Processor32 vCPUAMD EPYC 9554
    Memory64 GBDDR5
    Storage640 GB NVMeor 1280 GB SSD
    Network1 Gbps
    €102.39excl. VAT/month
    €127.99Save 307€/year
    Choose

Every plan has everything you need, and more

  • Langflow deployed
  • Unlimited traffic
  • DDoS protection
  • First snapshot included
  • 24/7 French-speaking support

Why Langflow on an OnetSolutions VPS

Recent hardware, a fast network and protected data, under every Langflow server.

AMD EPYC processors and NVMe storage

The Performance range runs on AMD EPYC 7443, the High performance range on AMD EPYC 9554 with DDR5 memory, on NVMe storage for Langflow's database.

Up to 1 Gbps

1 Gbit/s on the Performance and High performance ranges, and unlimited traffic on every plan.

OnetSolutions API

Automate deployments, manage your servers and connect your AI assistants to your infrastructure. See the documentation

Backups and snapshots

Langflow's volumes are backed up every day on the instance, with 7-day retention. Daily backups available as an option from €0.99 excl. VAT/month for a copy off the server.

Online in three steps

Nothing to install: you order, Langflow arrives on your server, over HTTPS.

  1. 01

    Pick your VPS

    Select a plan: Langflow is already ticked in the order.

  2. 02

    Langflow deploys itself

    One Click Apps installs its platform, then Langflow and its PostgreSQL database, with no SSH or Docker to configure.

  3. 03

    Build your flows

    Open the HTTPS address shown in the console, sign in and assemble your first agent.

All of Langflow, on your server

Langflow is an open-source Python framework for building AI agents and RAG applications from a visual editor.

  • Visual editor

    Drag components onto the canvas, connect them into a flow and test the result in the Playground, without building your whole application.

  • Agents and tools

    The Agent component follows your instructions and calls the tools you connect to it to complete a task.

  • RAG and vector stores

    Split your documents, compute their embeddings and store them in a vector store to retrieve the relevant passages.

  • One flow, one API

    Every flow answers on /api/v1/run, with Python, JavaScript and curl snippets generated by Langflow.

  • MCP server and client

    Each project exposes its flows as MCP tools, and the MCP Tools component uses tools from other servers.

  • Python when you need it

    Write your own components in Python for anything the catalogue does not cover.

Call a flow

A snippet like the ones Langflow generates, with your API key

curl -X POST \
  "https://langflow.your-domain.com/api/v1/run/$FLOW_ID" \
  -H "Content-Type: application/json" \
  -H "x-api-key: $LANGFLOW_API_KEY" \
  -d '{"input_value": "Hello", "input_type": "chat", "output_type": "chat"}'

A project's MCP server

/api/v1/mcp/project/<PROJECT_ID>/streamable

Model providers

  • OpenAI
  • Anthropic
  • Mistral
  • Azure OpenAI
  • Ollama

Vector stores

  • Chroma
  • Astra DB
  • Qdrant
  • Milvus
  • Weaviate
  • MongoDB
  • Redis

Examples named by Langflow, not an exhaustive list. Langflow ships no model and needs no GPU: your flows call the providers you configure, with your own keys. Ollama connects to a server you host elsewhere.

What you can build with Langflow

One server, as many flows as its memory allows: each one becomes an API, an MCP tool or a chat.

  • RAG on your documents

    Index your internal documents in a vector store and query them in natural language, starting from the Vector Store RAG template.

    • Qdrant
    • Milvus
    • Astra DB

  • Customer support agent

    An agent that follows your instructions and checks your help pages before answering, with the model of your choice.

    • Anthropic
    • Mistral
    • Ollama

  • Agents exposed over MCP

    Every Langflow project is an MCP server: your flows become tools for Claude, Cursor or Windsurf.

    • MCP
    • Claude
    • Cursor

  • Automation over the API

    Call a flow from your scripts or your back end, with a Langflow API key.

    • Python
    • JavaScript
    • curl

  • Chat on your website

    Langflow's chat widget drops into your site's HTML and talks to your flow.

    • HTML
    • JavaScript

  • One project per team

    Organise your flows by project, each with its own MCP server and authentication settings.

Langflow builds your agents, our console runs the server

Langflow and your VPS are managed from the OnetSolutions console: the application, the server and billing in one place.

  • Langflow logs, environment variables and domains
  • Updates detected every night, applied from the console
  • Daily volume backups, 7-day retention
  • KVM console, snapshots, firewall and invoices
console.onetsolutions.net/compute/instances/langflow-prod
OnetSolutions
Agence Horizon
Compute/Instances/web-prod-01
web-prod-01Running
GP-8 · Intel Xeon 2,60 GHz
RestartConsole
CPU34%
RAM5,2 / 8 Go
Network128 Mb/s
System
Ubuntu 26.04 LTS
IP address
51.210.24.8
Uptime
34 j
Size
4 vCPU · 8 Go
CPU activity (24h)34%
-24 h-12 hnow

A team behind your server

Technicians who know your VPS, reachable at any hour.

4.5/5 on Trustpilot
Contact support

24/7 French-speaking support

Open a ticket from the console, day or night: a person answers you about your instance.

Help centre

One Click Apps guides, tutorials and the API reference to go further.

30-day money-back guarantee

Try Langflow on your VPS: if it does not suit you, you get your money back.

MCP · Beta

Manage your VPS with AI

Our MCP server connects Claude, Cursor or any Model Context Protocol client to your OnetSolutions account: ask about your servers and their status in natural language, without leaving your assistant.

  • Read-only: the assistant looks, it changes nothing
  • Signs in with your OnetSolutions account
Set up the MCP server
  • Claude
  • Cursor
  • Any MCP client

Langflow FAQ

What to know before you order, and right after.

What is Langflow?

Langflow is an open-source Python framework, published under the MIT licence by a third party, for building AI agents and RAG applications. Its components are assembled in a visual editor and tested in the Playground, and each flow can then be called over the API or as an MCP tool.

Does Langflow include an AI model?

No. Langflow orchestrates calls to the model providers you configure, such as OpenAI, Anthropic, Mistral or Azure OpenAI, with your own API keys and at their prices. For open models, connect an Ollama server: on a High performance plan, the optional NVIDIA L4 GPU (€0.70 excl. VAT per hour, billed by the minute) speeds it up.

How do I access Langflow after ordering?

Once the VPS is created, Langflow is deployed with One Click Apps. Open it from your instance's One Click Apps section: its HTTPS address and the credentials generated at deployment are in the Overview tab. For production, add your own domain in the Domains tab: the HTTPS certificate is issued automatically, and the DNS record is created for you if the zone is managed at OnetSolutions.

What configuration do I need?

Langflow's documentation asks for at least a dual-core CPU and 2 GB of RAM, and recommends at least 4 GB. One Click Apps requires 2 vCPU, 2 GB of RAM and 30 GB of disk, and reserves 1 GB of memory for the system and the platform. Every plan on this page has at least 2 vCPU and 4 GB of RAM; pick more memory if you run other applications alongside.

Can I call my flows from another application?

Yes. Every flow answers on Langflow's API (/api/v1/run/<flow id>) with a Langflow API key. Each project also exposes an MCP server that presents its flows as tools to clients such as Cursor, Claude or Windsurf.

Are my flows backed up?

Langflow's volumes are backed up every day at 3 am, with 7-day retention, and can be restored from the console. These backups are stored on the instance: to protect yourself against losing the server, add a snapshot or the VPS backup option. Daily backups available as an option from €0.99 excl. VAT/month.

How do I update Langflow?

Every night, the platform checks whether a new version has been published. If so, an "Update available" banner appears in the console and you start the update when you decide. Data volumes are kept; take a backup before a major version change.

Who looks after Langflow once it is deployed?

You do. Langflow runs on your own server, with root SSH access: its configuration, data, updates and security are yours to operate. Our support covers the instance itself: the server, its network, its storage and its availability.

Is Langflow paid?

Langflow is free and open source under the MIT licence, and One Click Apps is included with the VPS at no extra cost. You pay for the VPS at the prices shown on this page, and for the model providers you call directly to them.

Launch your Langflow VPS

Pick your plan: Langflow is deployed on your server, over HTTPS, ready for your first agent.

See the plansTalk to an expert
HP-4Langflow included
from€6.39excl. VAT/month

€7.99with the annual commitment

  • 2 vCPU AMD EPYC 9554
  • 4 GB DDR5
  • 40 GB NVMe
  • 1 Gbps
Order HP-4
Langflow VPS: AI agents from €6.39 excl. VAT/month, hosted in France - OnetSolutions