Dev Tools & GitMCP RegistrynpmB · 63

0n3 — the 0n runtime (0nmcp 5) MCP server

Name: 0n3 — the 0n runtime (0nmcp 5)
Author: 0nork

io.github.0nork · Updated today

Your apps as AI tools: one sign-in, one vault, 125 services and 1,851 endpoints, with receipts.

At a glance

0n3 — the 0n runtime (0nmcp 5) is an MCP server in the Dev Tools & Git category. It runs locally over stdio via `npx -y 0nmcp`, and needs Authorization and ON3_TOKEN. It scores B (63/100) on the MCP Skills Hub health score as of Oct 28, 2026.

Source

One-click install

VS Code VS Code Insiders Cursor

Opens your editor and pre-fills the config. Your editor will ask before adding it.

How to install 0n3 — the 0n runtime (0nmcp 5) in your AI client

Setup for Claude Code, Claude Desktop, Cursor, Codex, Windsurf, Cline and VS Code — copy-paste ready.

How to install 0n3 — the 0n runtime (0nmcp 5) in Claude CodeAnthropic's agentic CLI

Add the server

bash

claude mcp add 0nMCP -e 'ON3_TOKEN=<ON3_TOKEN>' -- npx -y 0nmcp

Fill in your credentials
Replace <ON3_TOKEN>, Bearer <YOUR_TOKEN> with your real values. Keep secrets out of any config file you commit.
3
Verify it's connected
bash
```
claude mcp list
```
Sharing it with your team?
Add `--scope project` to write it to .mcp.json in the repository root, which you can commit (with the secrets left as environment variables).
Use it in a session
Ask Claude to use the tools this server exposes. It discovers them automatically.

How to install 0n3 — the 0n runtime (0nmcp 5) in Claude DesktopDesktop app (MCP config)

Open your MCP config
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

Add this server

json

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": [
        "-y",
        "0nmcp"
      ],
      "env": {
        "ON3_TOKEN": "<ON3_TOKEN>"
      }
    }
  }
}

Fill in your credentials
Replace <ON3_TOKEN>, Bearer <YOUR_TOKEN> with your real values. Keep secrets out of any config file you commit.
Restart Claude Desktop
The tools appear under the 🔌 menu once the app reloads.

How to install 0n3 — the 0n runtime (0nmcp 5) in CursorAI-first code editor

Create / edit .cursor/mcp.json in your project

json

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": [
        "-y",
        "0nmcp"
      ],
      "env": {
        "ON3_TOKEN": "<ON3_TOKEN>"
      }
    }
  }
}

Fill in your credentials
Replace <ON3_TOKEN>, Bearer <YOUR_TOKEN> with your real values. Keep secrets out of any config file you commit.
Enable it
Cursor Settings → MCP → toggle the server on. Tools become available to the Composer/Agent.

How to install 0n3 — the 0n runtime (0nmcp 5) in Codex CLIOpenAI coding agent

Add to ~/.codex/config.toml

toml

[mcp_servers.0nMCP]
command = "npx"
args = ["-y", "0nmcp"]
env = { ON3_TOKEN = "<ON3_TOKEN>" }

Fill in your credentials
Replace <ON3_TOKEN>, Bearer <YOUR_TOKEN> with your real values. Keep secrets out of any config file you commit.
Run Codex
Codex loads MCP servers from config.toml on startup and exposes their tools to the agent.

How to install 0n3 — the 0n runtime (0nmcp 5) in WindsurfCodeium's agentic IDE

Edit ~/.codeium/windsurf/mcp_config.json

json

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": [
        "-y",
        "0nmcp"
      ],
      "env": {
        "ON3_TOKEN": "<ON3_TOKEN>"
      }
    }
  }
}

Fill in your credentials
Replace <ON3_TOKEN>, Bearer <YOUR_TOKEN> with your real values. Keep secrets out of any config file you commit.
Reload
Windsurf → Cascade → refresh MCP servers. Cascade can now call the tools.

How to install 0n3 — the 0n runtime (0nmcp 5) in ClineVS Code autonomous agent

Open Cline → MCP Servers → Configure
Adds to cline_mcp_settings.json.

Add the server

json

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": [
        "-y",
        "0nmcp"
      ],
      "env": {
        "ON3_TOKEN": "<ON3_TOKEN>"
      }
    }
  }
}

Fill in your credentials
Replace <ON3_TOKEN>, Bearer <YOUR_TOKEN> with your real values. Keep secrets out of any config file you commit.

How to install 0n3 — the 0n runtime (0nmcp 5) in VS CodeCopilot / MCP support

Create .vscode/mcp.json

json

{
  "servers": {
    "0nMCP": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "0nmcp"
      ],
      "env": {
        "ON3_TOKEN": "<ON3_TOKEN>"
      }
    }
  }
}

Fill in your credentials
Replace <ON3_TOKEN>, Bearer <YOUR_TOKEN> with your real values. Keep secrets out of any config file you commit.
Start it
VS Code shows a ▶ Start action above the server entry. Agent mode (Copilot Chat) can then use the tools.

What does 0n3 — the 0n runtime (0nmcp 5) need from you?

Bearer token — Bearer <your 0n token> — get one at https://0n3.app/tokens

ON3_TOKENoptionalsecretEnvironment variable
Your 0n token from https://0n3.app/tokens (optional for stdio; lists your hosted vault)
AuthorizationrequiredsecretHTTP header
Bearer <your 0n token> — get one at https://0n3.app/tokens

Pass secrets through your shell environment rather than committing them into a config file.

What tools does 0n3 — the 0n runtime (0nmcp 5) expose?

This server runs as a local package. We only query remote servers for their tool list — asking this one would mean executing it, so its tools are listed in the documentation below.

What the code can do

Read from the published package source — never executed. Parsed 80 of 102 source files.

This server can run other programs on your machine, read and write files and make network requests.

How it was published

No provenance attestation — there is nothing linking this published artifact to a specific source commit.
1 npm maintainer — a single point of compromise · last published by mcpfed.

Maintainer of this package and think something here is wrong? Tell us and we'll correct it.

Before you install

Signals gathered from the source repo and package registry — not a safety verdict.

What it can reach

Runs code on your machine — Executes as a local process with your user's permissions, including filesystem access.
Downloads at launch — The package is fetched from its registry each run unless you pin a version.

Client compatibility

Claude Code: NativeClaude Desktop: NativeCursor: NativeCodex CLI: NativeWindsurf: NativeCline: NativeVS Code: Native

Health score

B · 63

Maintenance, adoption, transparency and packaging — not a safety audit. How this is calculated

Maintenance30%not measurable
No commit history available.
Adoption20%not measurable
No usage data available.
Transparency20%25%
1/4: ✓ public source repo, ✗ declared license, ✗ documentation, ✗ discoverable tool list.
Provenance15%75%
Links to its own repository; package linkage unverified.
Packaging15%100%
Publishes a pinned version (5.0.6).

Alternatives to 0n3 — the 0n runtime (0nmcp 5)

Maintain 0n3 — the 0n runtime (0nmcp 5)? Add a badge to your README

Shows its health grade, and links readers to install steps for every client.

markdown

[![0n3 — the 0n runtime (0nmcp 5) on MCP Skills Hub](https://mcp-skills-hub.vercel.app/badge/io-github-0nork-0nmcp)](https://mcp-skills-hub.vercel.app/mcps/io-github-0nork-0nmcp)

Catalog data refreshed Oct 28, 2026. Something wrong? Report it.