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PopNx MCPMCP servers for people who use AI · explained in plain words
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OpenFree

by MkThingsHQversion 1.0.0i★ 0iRuns in the cloud
Registry nameio.github.MkThingsHQ/openfree

How to install

What it does

Search curated free and open source AI tools for indie makers on OpenFree.

  • Connects Runs in the cloud
  • Account or key No key needed
  • Category Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Passed 3/3 checks · What you ask goes through the maker’s server (openfree.tools)

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

  1. Open Claude’s Connectors page

    CustomizeConnectors

    CustomizeConnectors1+ Add2https://…3Add4

  2. Click “+ Add” → “Add custom connector” and fill in these 2 fields

    Copy each value into the field with the same name in Claude, then click Continue

    Name · Name

    Checking the commands · copy buttons appear once they pass

    Remote MCP server URL · Address

    Checking the commands · copy buttons appear once they pass

    Leave Authentication as Claude detected it, then click Add

  3. Turn it on in a chat

    +ConnectorsOpenFree

  4. Try it

    Use OpenFree and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using OpenFree or shows a OpenFree tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT, depending on your plan

Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only

  1. Open ChatGPT’s add-MCP page on the web

    Plugins+Add custom MCP server

    ChatGPTPlugins1+2https://…3Create4

  2. Fill in the name and address

    Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin

    Name · Name

    Checking the commands · copy buttons appear once they pass

    Connection · Address

    Checking the commands · copy buttons appear once they pass

  3. Pick OpenFree in a chat

    Start a new chat and pick OpenFree from your plugins before typing

  4. Try it

    Use OpenFree and tell me what you can do for me, then show me one thing

    ✓ If ChatGPT says it is using OpenFree or shows a OpenFree tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

  1. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  2. Paste this command and press Enter

    Checking the commands · copy buttons appear once they pass

  3. Type /mcp in Claude Code

    You should see OpenFree listed as connected

  4. Try it

    Use OpenFree and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using OpenFree or shows a OpenFree tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

  1. Click this button to open Cursor

    Checking the commands · copy buttons appear once they pass

  2. Open the AI chat in Cursor in Agent mode

  3. Try it

    Use OpenFree and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using OpenFree or shows a OpenFree tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

  1. Click this button to open VS Code

    Checking the commands · copy buttons appear once they pass

  2. Open the AI chat in VS Code in Agent mode

  3. Try it

    Use OpenFree and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using OpenFree or shows a OpenFree tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Address

Checking the commands · copy buttons appear once they pass

JSON settings are under “For developers” below

Stuck? Ask people who use OpenFree💬 Discussion →
For developers: Terminal commands and JSON settings

Over the web

Claude Code

Checking the commands · copy buttons appear once they pass

Cursor (~/.cursor/mcp.json)

Checking the commands · copy buttons appear once they pass

VS Code (mcp.json)

Checking the commands · copy buttons appear once they pass

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

Downloads per weeki
Not on npm/PyPI
Licencei
No licence stated
Connection
Runs in the cloud
Transport
streamable-http
Latest versioni
1.0.0
Published to registryi
Oct 28, 2026
Code last changedi
–
Maker
MkThingsHQ
Repo
–
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

Guide 85 checks before you install an MCPAbout 2 minutes each: check its page on our site and the permission request in your AI app before you say yes.4 min read

What it can do

Tool names and descriptions exactly as the server reported them on Nov 12, 2026. The maker wrote them, not us; we show them as plain text.

  • search_tools

    Search published free and open-source AI tools on OpenFree. Filter by category/tag slug; results are paginated, up to 25 per page.

  • get_tool

    Get a published OpenFree tool by its exact slug. Returns a not-found error for unpublished or unknown slugs.

  • list_categories

    List OpenFree categories with published tools, including category slugs and public usage counts.

  • list_tags

    List the 50 most-used OpenFree tags on published tools, with slugs and public usage counts. total is the number of public tags.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account MkThingsHQ, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 963 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 4 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

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User reviews

No reviews yet

Sign in with Google to write a review

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 6020 servers in this category
  • Published to the registry more recently than 70% of the other 6020 servers in this category
  • Basic checks equal to or better than 100% of the other 6020 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is OpenFree safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 16 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).

What can I use instead?

In the same category: Context7, Codebase Memory, Ruflo

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

by upstashWidely used↓ 1.2M/wk★ 64.7KUpdated yesterday

Computer or cloud
Install

Codebase Memory

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

by DeusDataWidely used↓ 16.8K/wk★ 48.6KUpdated 27 days ago

Runs on your computer
Install

Ruflo

Agent teams, swarms, memory and hooks for Claude Code and Codex, served over MCP.

by ruvnetWidely used↓ 74.3K/wk★ 81.6K Stars for the whole repoUpdated 2 days ago

Runs on your computer
Install

README from the maker

No README found in the repo