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Compiler Explorer

connects

godbolt.org

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

https://godbolt.org/mcpWebsiteNo authMCP 2025-11-25vgh-19707last checked 18 Oct 2026spoke MCP on 100% of 88 checks (30 days)initialize in 352 ms

Will my client connect?

Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.

✓Claude CodeConnects

The endpoint answers an anonymous handshake, so no credential is needed.

claude mcp add --transport http compiler-explorer https://godbolt.org/mcp

Claude Code docs · read on 2026-08-30

✓Claude (claude.ai & Desktop)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Connectors → Add custom connector, then paste https://godbolt.org/mcp.

Claude (claude.ai & Desktop) docs · read on 2026-08-30

✓ChatGPTConnects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://godbolt.org/mcp.

ChatGPT docs · read on 2026-08-30

✓CursorConnects

The endpoint answers an anonymous handshake, so no credential is needed.

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

Cursor docs · read on 2026-08-30

✓VS Code (Copilot)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

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

VS Code (Copilot) docs · read on 2026-08-30

How to authenticate

Checked against the endpoint by our probe on 18 Oct 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme	No auth
Protected-resource metadata	✕Not found Without it a client has to guess where the authorization server lives.
Anonymous access	Handshake succeeds; 7 tools listable

Tools

compilegenerate_short_urlget_shortlink_infolist_compilerslist_languageslist_librarieslookup_asm_instruction

Contract history

18 Oct 2026vgh-19707no contract changes

16 Oct 2026vgh-196181 compatible

15 Oct 2026vgh-19581no contract changes

13 Oct 2026vgh-19556no contract changes

6 Oct 2026vgh-19496no contract changes

1 Oct 2026vgh-19441no contract changes

1 Oct 2026vgh-19424no contract changes

30 Sep 2026vgh-194102 compatible

30 Sep 2026vgh-19389no contract changes

28 Sep 2026vgh-19291no contract changes

28 Sep 2026vgh-19284no contract changes

27 Sep 2026vgh-19281no contract changes

27 Sep 2026vgh-19266no contract changes

23 Sep 2026vgh-19257no contract changes

14 Sep 2026vgh-19192no contract changes

9 Sep 2026vgh-19146no contract changes

5 Sep 2026vgh-19133no contract changes

2 Sep 2026vgh-19066first recorded contract

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Status badge

Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.

[![MCP status](https://mcpi.app/servers/compiler-explorer/badge.svg)](https://mcpi.app/servers/compiler-explorer)