MCP server

Compiler Explorer

io.github.compiler-explorer/compiler-explorer

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Compile code with thousands of compilers, inspect the assembly, and share godbolt.org links

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

7

Token cost

About 2,287 tokens per request

Sets up in

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

Last checked

25 Oct 2026, 20:29 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-explorer https://godbolt.org/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.compiler-explorer]
url = "https://godbolt.org/mcp"

Gemini CLI

{"mcpServers":{"compiler-explorer":{"httpUrl":"https://godbolt.org/mcp"}}}

Cursor

{"mcpServers":{"compiler-explorer":{"url":"https://godbolt.org/mcp"}}}

VS Code

{"servers":{"compiler-explorer":{"type":"http","url":"https://godbolt.org/mcp"}}}

Antigravity

agy mcp add compiler-explorer https://godbolt.org/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-explorer","server_url":"https://godbolt.org/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"compiler-explorer","server_url":"https://godbolt.org/mcp"}

Tools

• compile ~700 tokens
  Compile source code and return assembly output, stdout, and stderr
• generate_short_url ~259 tokens
  Create a Compiler Explorer short URL for sharing code with compiler settings
• get_shortlink_info ~173 tokens
  Retrieve source and compiler config from a CE short URL. Compiler entries are returned in the `compile` tool's shape ({compiler, options, libraries:[{id, version}]}). Multi-pane shortlinks (executors, conformance views, CMake trees, per-compiler filters/tools) are flattened — only the basic compile
• list_compilers ~640 tokens
  List available compilers, optionally filtered by language
• list_languages ~49 tokens
  List supported languages. Each entry has `defaultCompiler` and `compilerCount`.
• list_libraries ~255 tokens
  List available libraries for a given programming language
• lookup_asm_instruction ~211 tokens
  Look up documentation for an assembly instruction

Browse

• GitHub tools
• GitHub and code hosting

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