Claude Code Git Proxy 403 Forbidden on git push

What this error means

HTTP 403 Forbidden from git proxy on git-receive-pack is a Claude Code failure pattern reported for developers trying to fix claude code git push failing with http 403 from internal git proxy. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

Multiple open issues in anthropics/claude-code repo reporting HTTP 403 from internal git proxy on git push/receive-pack. Affects web sandbox environment. Users forced to use GitHub-MCP fallback causing content drift.

Common causes

• Claude Code’s internal git proxy returns HTTP 403 Forbidden on git-receive-pack during git push operations in the web sandbox. Multiple users report this across many issues (57356, 57689, 57829, 58141, 58342), indicating a systemic problem that blocks a core developer workflow.
• Multiple open issues in anthropics/claude-code repo reporting HTTP 403 from internal git proxy on git push/receive-pack. Affects web sandbox environment. Users forced to use GitHub-MCP fallback causing content drift.

Quick fixes

1. Confirm the exact error signature matches HTTP 403 Forbidden from git proxy on git-receive-pack.
2. Check the Claude Code account, local tool state, and provider configuration involved in the failing workflow.
3. Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

• Verify the command, editor, extension, or API client that produced the error.
• Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
• Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

1. Capture the exact error message and the command, editor action, or request that triggered it.
2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
3. Review the source evidence below and compare it with your environment.
4. Apply one change at a time and rerun the smallest failing action.
5. Keep the working fix documented for the team or deployment environment.

How to prevent it

• Keep provider/tool configuration documented.
• Record non-secret diagnostics such as tool version, provider name, model name, and command path.
• Add a lightweight check before CI or production workflows depend on the tool.

Sources checked

• https://github.com/anthropics/claude-code/issues/57829
• https://github.com/anthropics/claude-code/issues/58342
• https://github.com/anthropics/claude-code/issues/58141

Evidence note: Multiple open issues in anthropics/claude-code repo reporting HTTP 403 from internal git proxy on git push/receive-pack. Affects web sandbox environment. Users forced to use GitHub-MCP fallback causing content drift.

Related errors

• Claude Code git push content drift via MCP fallback
• Claude Code sandbox git proxy branch push restrictions

FAQ

What should I check first?

Start with the exact HTTP 403 Forbidden from git proxy on git-receive-pack text and the smallest action that reproduces it.

Can I ignore this error?

No. Treat it as a failed Claude Code workflow until the root cause is understood.

Is this guaranteed to have one fix?

No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.

How do I know the fix worked?

Rerun the same command, editor action, or request. The fix is working when that action completes without HTTP 403 Forbidden from git proxy on git-receive-pack.