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You can host a small remote MCP server for free on Cloudflare Workers, use Vercel Hobby for a personal, non-commercial project, or run a local stdio server on a computer you already own. These choices solve different problems. A public HTTP endpoint, a local assistant tool and a persistent application are not the same hosting requirement.
CreateOS is another deployment option when you want a managed application environment. Check its current credits and runtime charges before assuming that a particular MCP workload will remain free.
Hosting options checked: October 22, 2026. The comparison below uses provider documentation, not assumed latency or migration benchmarks. A hosting allowance does not include whatever external model, database or API your tools call.
What an MCP server needs from its host
An MCP server exposes tools, resources or prompts to an MCP client. Tool discovery happens through protocol messages such as tools/list; calling a tool uses tools/call. The MCP architecture documentation describes this exchange.
First choose the transport. The MCP transport specification defines stdio for a client-launched local process and Streamable HTTP for a remote endpoint. An HTTP response can carry JSON or a request-scoped event stream. A locally launched stdio tool does not need a public URL.
Then identify what the tool does between requests. A read-only API wrapper might need no durable local state. A tool that stores user credentials, tracks jobs or records approvals needs a data store and an explicit lifecycle. MCP does not require every server to keep a process running indefinitely.
For the broader deployment decision, see our guide to MCP server hosting.
Free MCP server hosting options compared
| Option | What can be free | State and persistence | Main constraint | Best starting point |
|---|---|---|---|---|
| Cloudflare Workers | A remote endpoint within the Workers Free allowance | KV, D1 and Durable Objects have their own limits and billing rules | Workers runtime compatibility and CPU allowance | Small remote tools and API integrations |
| Vercel Hobby | A personal, non-commercial deployment within Hobby limits | Use a database or supported storage service for durable data | Hobby eligibility, function limits and storage allowances | A personal project already built for Vercel |
| A computer you already own | A local stdio process with no additional hosting subscription | Local files or your existing database | Your computer must be available; local stdio is not a public service | Development and tools used by your own assistant |
| CreateOS | Depends on the current account allowance and selected resources | Choose the application and data services your workload needs | Verify current compute, storage and credit terms | A managed deployment rather than maintaining your own host |
Cloudflare Workers: a documented remote MCP path
Cloudflare publishes a remote MCP server guide. This makes it a concrete option for an HTTP MCP service rather than a generic hosting suggestion.
The Workers pricing documentation lists 100,000 requests per day and 10 milliseconds of CPU time per invocation on the Free plan. CPU time measures execution, not time spent waiting for a network response. A tool that calls an external service is therefore a different workload from one doing expensive computation locally.
Storage is a separate choice. The same pricing documentation lists free allowances for KV, D1 and SQLite-backed Durable Objects. Check the service you actually use; it is incorrect to describe Workers as having no persistence. Keep your own usage estimate, including retries and background work, before treating the whole application as free.
Vercel Hobby: check the intended use first
Vercel Hobby is restricted to personal, non-commercial use. It is a reasonable candidate for an eligible personal MCP experiment, not a free production plan for a business.
Check function duration, streaming behavior and the limits of any connected data service against your actual server. Do not choose a host from an unsourced cold-start estimate. Test a complete tool call, a slow upstream response and the failure path using the client that will connect to it.
Your own computer: free development, different availability
If your assistant launches a local stdio process, you can develop and use the server without buying a cloud host. Its files and credentials stay in the environment you configure.
That does not make the computer an always-available remote service. Turning it off ends availability, and exposing it through a tunnel adds networking and authentication work. A rented VM is also a valid deployment choice, but its monthly bill is not a free hosting tier.
For durable shared data, compare MCP hosting with persistent storage rather than relying on a writable temporary filesystem.
Deploy your MCP server with CreateOS
CreateOS: The unified execution layer for AI. The CreateOS platform brings application building and deployment into a connected workflow. For an MCP service, the useful question is whether its runtime, network endpoint and data requirements fit the deployment you configure.
Start with the language your application uses. These CreateOS pages describe MCP-assisted application deployment; they are not a replacement for implementing the MCP server protocol:
- Deploy Python APIs through MCP.
- Deploy Express APIs through MCP.
- Deploy Go applications through MCP.
- Explore CreateOS MCP deployment workflows.
A practical deployment checklist:
- Confirm the transport. A remote client needs a reachable HTTP MCP endpoint. A stdio-only command needs an HTTP transport or a different deployment design before a remote client can use it.
- Configure the application. Set the start command, listening port and required environment variables. Keep provider credentials out of committed source and browser code.
- Choose durable storage. Decide where user authorizations, job records and application data live. Test that required data survives a restart or redeploy.
- Connect a real client. Verify tool listing, one successful call, an upstream failure and cancellation. A healthy homepage alone does not prove MCP compatibility.
- Check the account allowance. Review current resource charges and credits, then set the usage controls available to your account. Do not equate a starting allowance with unlimited operation.
There is no universal deployment-time or zero-downtime promise here. The work depends on the server, its dependencies, client support and how you move existing users.
Keep a free endpoint from becoming an unexpected bill
Count the work behind a tool call, not just the inbound HTTP request. One call can invoke a model, read a database, fetch several URLs and retry a failed service. Those downstream services can charge independently of hosting.
Measure a small representative workload: normal requests, concurrent requests, large responses and an upstream outage. Record which limits stop work and which permit paid usage. Avoid claims such as "no bandwidth cap" or "no cold starts" unless the provider documents them for the exact service and plan.
Protect the endpoint as well as the bill. For HTTP servers that support authorization, follow the MCP authorization specification. Scope each integration's permissions to the operations the tool needs. A public URL is not permission to expose a database or execute arbitrary commands.
Common questions
Where can I host an MCP server for free?
Cloudflare Workers provides a documented remote MCP deployment path with a Free plan. Vercel Hobby is an option for eligible personal, non-commercial projects. A local stdio server can run on a computer you already own. For any managed platform, including CreateOS, check the current account allowance and the resources your workload consumes.
Does every MCP server need persistent compute?
No. It depends on the transport and application. A local stdio server runs as a client-launched process. A remote HTTP server can keep durable application state in a data service. A job that must continue beyond a request needs a suitable execution and recovery design, but this is not a universal requirement of MCP.
Can Cloudflare Workers store MCP application data?
Yes. Its storage services include KV, D1 and Durable Objects, with service-specific allowances and charges. Select storage by consistency, access pattern and lifecycle requirements, then check the current limits. Do not assume either that all storage is free or that Workers cannot persist state.
Can I use Vercel Hobby for a commercial MCP service?
Vercel documents Hobby as personal and non-commercial. A commercial deployment needs an appropriate plan and a check of the runtime, function and storage limits it will use.
How do clients discover my MCP tools?
The client uses the MCP protocol to list and call tools. Implement and test tools/list and tools/call for the transport you expose. Follow the client's connection and authorization requirements rather than assuming a hosted file will register tools automatically.
Next step
Choose the transport and data requirements first, then test the smallest complete deployment. If you want a managed application workflow, explore the CreateOS platform and the Go MCP-assisted deployment guide. Keep the current plan terms beside your workload estimate before calling the result free.
