How to Launch an MCP Server for Free: Registry, README and First Users
To launch an MCP server for free, publish the package or host the remote endpoint, add the server to the official MCP Registry with the mcp-publisher tool, and write a README that a developer can copy into their client in under two minutes. Describe each tool clearly, start read-only, and post it where people who build with agents read.
Who finds an MCP server, and where?
The people who install an MCP server are developers who already use an AI client and want it to reach a service. They arrive from three places: a search of a package registry, a list or registry of servers, and a link in a README or a post. None of them arrives from a consumer app store, so a pretty landing page matters less than a clear repository and a name that says what the server connects to.
The unusual feature of this product type is that the interface your user actually reads is the text of your tool descriptions. The assistant chooses a tool from its name and description, so vague descriptions mean the server is installed and then never called. Treat those strings as your product copy.
How do you list it in the official MCP Registry?
The MCP Registry has its own quickstart, read on 13 November 2026, and describes itself as in preview, so breaking changes or data resets are possible. It hosts metadata only, not the package itself. For a server written in TypeScript and published to npm, the steps it gives are these:
- Add an
mcpNameproperty to yourpackage.json. With GitHub-based sign-in, the value must start withio.github.<your-username>/. - Publish the package to npm first, because the registry verifies that the package matches its metadata.
- Install the
mcp-publishercommand-line tool and create aserver.jsonthat names the server, describes it and points to the repository and package. - Authenticate with
mcp-publisher login github, then publish.
A server that exists only at a public remote endpoint can skip the package: its server.json needs a remotes entry. The quickstart notes that the registry checks you control the namespace in the name, but not the remote URL. Packages that are not on npm use a different ownership check, described in the official MCP Registry quickstart. Re-read it before you publish; a preview changes.
What should the README let someone do in two minutes?
- A copy-and-paste configuration for the two or three clients your users have, with the one environment variable or key they need named.
- A list of tools with one line each, showing the exact inputs and a sample call and reply.
- A statement of scope. What the server can read and what it can change, in plain words, and a read-only mode if there is one.
- A version and a changelog, because people pin versions and want to know what changed.
The Claude Code MCP guide shows how one client loads servers, which helps you write a configuration example that works. If you want ideas for servers other people would use, read the MCP server ideas list or the board’s developer tool ideas.
What makes a developer hesitate to install it?
An MCP server runs with the user’s credentials and feeds its output into a model that may follow instructions hidden in that output. Careful users know this. They look for the smallest set of tools, read-only defaults, no secrets written to logs and a clear note on what is sent where.
| Signal | How to show it |
|---|---|
| Narrow scope | Ship the read tools first; add write tools later behind a flag |
| Readable source | Keep the repository public and the tool code short |
| Safe handling of returned text | Say how you treat content from third parties that the server fetches |
| Maintenance | Dated releases, an issues page that gets answered |
Where else should you post it, and when?
Publish the package and the registry entry before you announce anything, so every link works. Then put a launch page on the free board, which needs no queue and gives you a followed link to the repository. After that, share the server in communities where people discuss the client it targets and on a technical board such as Show HN, whose guidelines ask for something others can try now.
The MCP server places and the Product Hunt alternatives for MCP servers list more. Because this field moves fast, check how recently each list was updated before you spend an evening on a submission.
How do you read the first week of usage?
Package downloads and repository stars flatter you: they count curiosity. The better signals are issues opened by people who got stuck during setup, questions about a missing tool, and the same person coming back with a second request. Answer every issue within a day for the first fortnight. Each question about installation is a line your README should already have contained, so add it.
Frequently asked questions
Is the MCP Registry free to use?
Its quickstart describes publishing with its own command-line tool and a GitHub or other sign-in, and we found no fee mentioned there, but it also calls the registry a preview. Read the registry’s current terms and quickstart before you publish, because a preview can change its rules or reset its data.
Do I need npm to publish an MCP server?
Not always. The registry’s quickstart uses npm as its worked example and says other package types, such as PyPI and container images, verify ownership differently. A server available only at a public remote endpoint can be listed with a remotes entry and no package. Pick the route that matches how you ship.
How do I make an MCP server trustworthy?
Keep the scope small, start with read tools, publish the source, describe each tool precisely and say how the server handles text it fetches from outside. Users run it with their own credentials, so the visible limits you set are the main reason they will install it.
What should an MCP server’s page say?
Name the service it connects to, list the tools with example calls, show a paste-ready client configuration and state what it can read and change. Add a version and a changelog. Developers decide from those four things whether to try it, so put them above any marketing copy.
Written by Post your build ideas with AI assistance and edited for this site. Where a page names another product, the facts came from that product’s own pages on the date shown above; terms change, so check them before you rely on them. About the publisher.