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Provider add failed: Claude Desktop direct provider missing ANTHROPIC_BASE_URL, Claude Code

Quick fix

The original post only reports this error. A comment suggests proxy environment variables, but this is unverified; continue monitoring the source Issue.

Symptom

Section titled “Symptom”
Error output
添加供应商失败：Claude Desktop 直连供应商缺少 ANTHROPIC_BASE_URL (Claude Desktop direct provider is missing ANTHROPIC_BASE_URL)
English translation

Provider add failed: Claude Desktop direct provider is missing ANTHROPIC_BASE_URL (Claude Desktop direct provider is missing ANTHROPIC_BASE_URL)

Cause

Section titled “Cause”

In this report on Windows with cc-switch v3.16.0, adding `Claude Code Official` for Claude Code failed and reported that `ANTHROPIC_BASE_URL` was missing. The original post does not explain why the variable was missing, and no maintainer confirmed the root cause or fix status; the closed Issue alone does not prove the problem was fixed.

One comment suggested setting `HTTP_PROXY`, `HTTPS_PROXY`, and `NO_PROXY`, but did not state that this resolved the issue. Treat it only as an unverified temporary suggestion. The original post does not provide a verifiable solution.

Fix

Section titled “Fix”

  1. The original post does not provide a verifiable solution. You may refer to the proxy environment variable suggestion in the source Issue comments, but do not treat it as a verified fix until confirmed.

  2. Continue monitoring follow-up discussion in the source Issue to confirm whether a maintainer provides a root cause or official fix.

Affected Versions

Section titled “Affected Versions”
ToolClaude Code
Versionv3.16.0（报告受影响）
PlatformsWindows

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”

(No FAQ yet)

Section titled “Related problems”
auth becomes {}, API Key lost - cc-switch CodexIf ~/.codex/auth.json is missing, saving the active Codex provider clears auth.OPENAI_API_KEY in the DB. Restore the key before saving or avoid saving.1 issues mergedAPI key is empty: cc-switch DeepSeek balance queryUpgrade to v3.16.1 or later and verify again. The original issue did not confirm the fix.1 issues mergedmodel field is still overridden — Claude Code proxy takeoverUpdate to the latest CC Switch 4.0 release and retry. If it persists, temporarily remove the model fields from settings.json and report the result.1 issues merged

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