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Unkonw coding plan provider Claude Code usage query failure

Quick fix

Upgrade to v3.20.0+ and recreate the old Agent Plan provider, or change its Base URL to /api/plan.

Symptom

Section titled “Symptom”
Error output
Unkonw coding plan provider

Cause

Section titled “Cause”

In cc-switch 3.19.1, `detect_provider` recognizes only `volces.com/api/coding`, not `/api/plan` used by Agent Plan, so Agent Plan is identified as an unknown provider. Meanwhile, usage queries probe endpoints in order; when one account has both plans, the Coding Plan configuration may return Agent Plan usage first.

Fix

Section titled “Fix”

  1. Upgrade to v3.20.0 or later, which includes the fix.

  2. If an old Agent Plan provider is saved, recreate it or change its Base URL to `/api/plan`.

  3. Use the corresponding entry for Agent Plan and Coding Plan to query usage separately. The official fix routes `/api/plan` to `GetAFPUsage` and `/api/coding` to `GetCodingPlanUsage`.

Affected Versions

Section titled “Affected Versions”
ToolClaude Code
Version3.19.1 - 3.20.2（reported affected）
PlatformsWindows

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”
I am on v3.20.2. Both plans use the same AK/SK, but both still query Agent Plan usage; Coding Plan usage can never be queried.
A user reported this in the issue after upgrading to v3.20.2. The official explanation is that the old Agent Plan provider must be recreated or its Base URL changed.
Section titled “Related problems”
usage null - Claude Code Qwen DashScopeUpgrade to cc-switch v3.16.3+, which fixes null streaming usage on the OpenAI-compatible interface automatically.2 issues mergedUnknown coding plan provider - Claude CodeUpgrade to v3.20.0 so the Agent Plan `/api/plan` endpoint is recognized correctly.1 issues mergedUnkonw coding plan provider - cc-switch VolcengineUpgrade cc-switch to v3.20.0 or newer, then recreate the Volcengine Agent Plan provider or fix its Base URL.4 issues merged

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