Minecraft Dev CLI Lookup

Use minecraft-dev-cli to inspect Minecraft code, mod and loader JARs, mappings, registries, versions, and docs.

Version format note

Use the actual Minecraft version the user is working with. Modern releases use the newer 26.1.x naming style, for example 26.1.2.

• 1.14 through 1.21.11 support both yarn and mojmap.
• 26.1+ uses mojmap only.
• Yarn mappings stop at 1.21.11.

Workflow

1. Identify whether the user needs Minecraft source, mod source, mod loader metadata, mappings, registries, docs, validation, or version diffing.
2. Pick the narrowest tool that answers the request.
3. Run minecraft-dev-cli <tool> --key value or minecraft-dev-cli <tool> --key=value.
4. Parse the JSON response and return only the useful result.
5. If the request is vague, ask for the class name, file path, symbol, JAR path, or Minecraft version.