Open MCP Apps

open-mcp-apps is an open engine built on MCP Apps (ui://, io.modelcontextprotocol/ui) - an extension to the core Model Context Protocol specification, and the first official one, live since 26 January 2026. It gives any MCP-Apps-capable host (Claude Desktop, claude. It runs locally over stdio via the published package.

People who work with mcp apps, sqlite and widgets and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-30 · ★ 32 · #48 OF 174 MAINTAINED DATABASE · VERIFIED 2026-09-30

MIT · JavaScript servers · how we verify → /methodology

01 · Install Open MCP Apps

before you install - you'll need

Set OMA_VIEWER before connecting. OMA_DYNAMIC_TOOLS is optional or environment-specific per the README.

Claude Code

claude mcp add 2nd1st-open-mcp-apps -- npx -y @2nd1st/open-mcp-apps

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "2nd1st-open-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@2nd1st/open-mcp-apps"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @2nd1st/open-mcp-apps - published under the repo owner's npm scope (@2nd1st)

registry namespace io.github.2nd1st is GitHub-verified and matches the repo owner

03 · What Open MCP Apps can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.7.2 · 2026-09-30

destructiveHint now answers for the user, not for the engine. data_update_item and · apply_data_writes are annotated destructiveHint: true. Both overwrite field values (and · null removes a field), and no tool lets the…

v0.7.1 · 2026-09-29

Every tool now carries annotations.title. Each tool already had a human-readable title; · it is now mirrored into annotations.title as well, at the one place every tool is registered, · so the two can never say…

v0.7.0 · 2026-09-05

Getting the contract straight before a directory carries it. Submitting to a host's app · directory turns tool metadata into a published, versioned contract, so this release spends the · last cheap window on the things…

04 · Who maintains Open MCP Apps

open-mcp-apps is maintained by 2nd1st. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/2nd1st/open-mcp-apps
website: https://openmcp.app/
category: database - ranked #48 of 174 actively-maintained database servers as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-09-30)
registry: io.github.2nd1st/open-mcp-apps (active, first published 2026-08-15 · 4 versions)
packages: npm:@2nd1st/open-mcp-apps

06 · Open MCP Apps FAQ

What is Open MCP Apps?

Is Open MCP Apps still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-30 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Open MCP Apps?

Run `npx -y @2nd1st/open-mcp-apps`. The README documents 2 environment variables (OMA_VIEWER, OMA_DYNAMIC_TOOLS) to set first. Set OMA_VIEWER before connecting. OMA_DYNAMIC_TOOLS is optional or environment-specific per the README. You can also paste the ready-made client config above.

Does Open MCP Apps run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Open MCP Apps

Alternatives to Open MCP Apps

Maintained database servers if Open MCP Apps isn't the fit.

Pairs well with

Servers that cover what Open MCP Apps doesn't - only shown when the pairing reason fits the companion.

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