Claude Code ignores ANTHROPIC_BASE_URL — login screen shown despite proxy running correctly

[hariomkhonde108]

Environment

• OS: Ubuntu Linux
• Claude Code version: 1.0.3
• Node.js version: 20.x
• Setup: claude-code-copilot proxy (no Docker)

Problem

Following the README exactly, even with the proxy running correctly and env vars
set, Claude Code 1.0.3 always shows the login/OAuth screen and never connects
through the proxy.

The proxy was confirmed working:

• curl http://localhost:18080/v1/models returned models correctly
• echo $ANTHROPIC_BASE_URL → http://localhost:18080
• echo $ANTHROPIC_API_KEY → copilot-proxy
• ~/.claude/credentials.json was correctly set

Despite all of this, Claude Code kept triggering the OAuth login flow and
ignoring ANTHROPIC_BASE_URL entirely.

Root Cause

Claude Code 1.0.3 introduced an onboarding gate that runs before it reads
any environment variables or credentials file. Until hasCompletedOnboarding
is set in ~/.claude.json, it bypasses all custom config and forces the login
screen.

Additionally, Claude Code 1.0.3 changed the environment variable name from
ANTHROPIC_API_KEY to ANTHROPIC_AUTH_TOKEN.

Fix

1. Mark onboarding as complete:

echo '{"hasCompletedOnboarding": true}' > ~/.claude.json

2. Use the correct env var name:

export ANTHROPIC_AUTH_TOKEN=copilot-proxy
export ANTHROPIC_BASE_URL=http://localhost:18080

3. Disable background traffic to Anthropic's real servers:

export DISABLE_NON_ESSENTIAL_MODEL_CALLS=1
export CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1

4. Launch:

ANTHROPIC_AUTH_TOKEN=copilot-proxy \
ANTHROPIC_BASE_URL=http://localhost:18080 \
DISABLE_NON_ESSENTIAL_MODEL_CALLS=1 \
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1 \
claude

## Suggested Fix for This Repo
The `scripts/launch.sh` and README should be updated to:

1. Auto-write `~/.claude.json` with `hasCompletedOnboarding: true` before 
   launching claude
2. Use `ANTHROPIC_AUTH_TOKEN` instead of (or in addition to) `ANTHROPIC_API_KEY`
3. Include `DISABLE_NON_ESSENTIAL_MODEL_CALLS` and 
   `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC` in the launch command
4. Add a note in the README Troubleshooting section about this for 
   Claude Code 1.0.3+

## Suggested launch.sh patch
Add this block before the final `claude "$@"` line in `scripts/launch.sh`:
```bash
# Ensure onboarding is marked complete so Claude Code doesn't show login screen
CLAUDE_JSON="$HOME/.claude.json"
if [ ! -f "$CLAUDE_JSON" ] || ! grep -q "hasCompletedOnboarding" "$CLAUDE_JSON"; then
    echo '{"hasCompletedOnboarding": true}' > "$CLAUDE_JSON"
    echo "✓ Marked Claude Code onboarding as complete"
fi

ANTHROPIC_BASE_URL="http://localhost:$PORT" \
ANTHROPIC_AUTH_TOKEN="copilot-proxy" \
ANTHROPIC_API_KEY="copilot-proxy" \
DISABLE_NON_ESSENTIAL_MODEL_CALLS=1 \
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1 \
claude "$@"
```

---

That covers the bug, root cause, fix, and a concrete patch for the maintainer to apply. Should be a solid and useful issue report! this msg is written by calude it self

[bigyao1991aicode]

请问一下 出现这个问题，但是 curl http://localhost:18080/v1/models
{"data":[{"id":"claude-opus-4-6","object":"model"},{"id":"claude-sonnet-4-5-2025
0929","object":"model"},{"id":"claude-sonnet-4-20250514","object":"model"},{"id"
:"claude-opus-4-5-20251101","object":"model"},{"id":"claude-haiku-4-5","object":
"model"}]}
怎么解决这个问题的呢