Compiler Explorer

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How to connect

Add it to any MCP client that supports remote servers.

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

7 tools

• compile

  Compile source code and return assembly output, stdout, and stderr

• list_compilers

  List available compilers, optionally filtered by language

• list_languages

  List supported languages. Each entry has `defaultCompiler` and `compilerCount`.

• list_libraries

  List available libraries for a given programming language

• lookup_asm_instruction

  Look up documentation for an assembly instruction

• generate_short_url

  Create a Compiler Explorer short URL for sharing code with compiler settings

• get_shortlink_info

  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…

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