claude-code-installer

GitHub-hosted mirror installer for Claude Code.

This repository exists for environments where claude.ai / downloads.claude.ai is blocked but GitHub Releases is still reachable. It mirrors the official Claude Code release archives from anthropics/claude-code into this repository's Releases and provides install scripts that download from this repo instead of Anthropic download endpoints. The launcher created by these scripts also sets DISABLE_UPDATES=1 so later claude runs do not try to self-update from Anthropic infrastructure.

What is mirrored

Each mirrored release tag includes these assets:

• claude-darwin-arm64.tar.gz
• claude-darwin-x64.tar.gz
• claude-linux-arm64.tar.gz
• claude-linux-arm64-musl.tar.gz
• claude-linux-x64.tar.gz
• claude-linux-x64-musl.tar.gz
• claude-win32-arm64.zip
• claude-win32-x64.zip
• SHASUMS256.txt
• SHASUMS256.txt.sig
• manifest.json generated for this mirror

The binaries are not committed to git history. They only live as release assets.

Install

Default install resolves the moving latest alias release, then downloads the actual versioned binary assets from that mirrored version tag.

The repository also maintains lightweight alias releases:

• latest → current mirrored latest release
• stable → current mirrored stable release

These alias releases only contain alias.json metadata; the large binaries remain attached only to versioned tags like v2.1.118.

macOS / Linux

curl -fsSL https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.sh | bash

Install a specific target:

curl -fsSL https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.sh | bash -s -- latest
curl -fsSL https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.sh | bash -s -- stable
curl -fsSL https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.sh | bash -s -- 2.1.118

Windows PowerShell

irm https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.ps1 | iex

Specific target:

& ([scriptblock]::Create((irm https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.ps1))) latest
& ([scriptblock]::Create((irm https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.ps1))) stable
& ([scriptblock]::Create((irm https://raw.githubusercontent.com/cometzero/claude-code-installer/main/install.ps1))) 2.1.118

How it works

1. Resolve the requested version from this repo's GitHub Releases.
2. Detect OS / architecture / musl.
3. Download the matching mirrored archive from this repo's release assets.
4. Verify the archive checksum against manifest.json / upstream SHASUMS256.txt.
5. Extract claude / claude.exe temporarily.
6. Copy the binary into a versioned local install directory.
7. Create a local launcher (claude, claude.cmd, claude.ps1) that runs the mirrored binary and sets DISABLE_UPDATES=1 so runtime updates do not fall back to Anthropic download endpoints.
8. Delete temporary downloaded artifacts.

Automation

The workflow .github/workflows/sync-upstream-release.yml checks upstream Claude Code releases on a schedule and creates a same-tag mirror release in this repository when a new upstream release appears.

After that, it also refreshes lightweight latest and stable alias releases so installer scripts can resolve those names without relying on GitHub's releases/latest semantics.

You can also run it manually with workflow_dispatch and optionally provide a specific tag.

Provenance

• Upstream source: https://github.com/anthropics/claude-code
• Upstream release notes remain Anthropic's content.
• This repository only republishes release assets and thin installer scripts for compatibility in restricted networks.