MCP server

OnlineCompiler.io Official

io.onlinecompiler/compiler

Checked 26 Oct 2026, 08:29 UTC · It answered and asked for a sign-in

Run Python, Java, C, C++, C#, Go, Rust and 39 more languages, each run in a fresh, offline sandbox.

Website

At a glance

Type

MCP server

Publisher

onlinecompiler.io (verified by the MCP Registry)

Status

Signs in with your account

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http compiler https://api.onlinecompiler.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.compiler]
url = "https://api.onlinecompiler.io/mcp"

Gemini CLI

{"mcpServers":{"compiler":{"httpUrl":"https://api.onlinecompiler.io/mcp"}}}

Cursor

{"mcpServers":{"compiler":{"url":"https://api.onlinecompiler.io/mcp"}}}

VS Code

{"servers":{"compiler":{"type":"http","url":"https://api.onlinecompiler.io/mcp"}}}

Antigravity

agy mcp add compiler https://api.onlinecompiler.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"compiler","server_url":"https://api.onlinecompiler.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"compiler","server_url":"https://api.onlinecompiler.io/mcp"}

Signs in with your account: your agent app opens a sign-in page the first time you use it.

Browse

• Rust tools
• Running code

Related MCP servers

• xmp4 — Semantic code knowledge for your stack
  OSS libs in your stack, really used: source, tests, callers. C#, Java, TS, Python, Rust, PHP+.
• SHIP
  Assign Linear, Jira or GitHub issues to an AI coding agent team that plans, builds, reviews, tests.
• Botoi
  49 developer tools via MCP: DNS, WHOIS, IP lookup, JWT, hashing, QR, and more.
• Vigía
  What breaks between versions, vulnerabilities, compatible versions, EOL dates: npm, PyPI, Rust, PHP.
• SmartTools
  70+ free calculators & converters as MCP tools; each result links to its source page.
• HefestoAI
  HefestoAI checks AI-generated code before you ship it.
• Senzing
  Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting
• searchcode
  Code intelligence for LLMs. Analyze, search, and retrieve code from any public git repository.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.onlinecompiler/compiler.svg)](https://aptlynx.net/servers/io.onlinecompiler/compiler)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents