diff --git a/docs/cli/index.md b/docs/cli/index.md
index ef4d956831f..00c7533a85d 100644
--- a/docs/cli/index.md
+++ b/docs/cli/index.md
@@ -1213,9 +1213,9 @@ Notes:
 
 - Data comes directly from provider usage endpoints (no estimates).
 - Human-readable output is normalized to `X% left` across providers.
-- Providers with current usage windows: Anthropic, GitHub Copilot, Gemini CLI, OpenAI Codex, MiniMax, and z.ai.
+- Providers with current usage windows: Anthropic, GitHub Copilot, Gemini CLI, OpenAI Codex, MiniMax, Xiaomi, and z.ai.
 - MiniMax note: raw `usage_percent` / `usagePercent` means remaining quota, so OpenClaw inverts it before display; count-based fields still win when present. `model_remains` responses prefer the chat-model entry, derive the window label from timestamps when needed, and include the model name in the plan label.
-- If no matching credentials exist, usage is hidden.
+- Usage auth comes from provider-specific hooks when available; otherwise OpenClaw falls back to matching OAuth/API-key credentials from auth profiles, env, or config. If none resolve, usage is hidden.
 - Details: see [Usage tracking](/concepts/usage-tracking).
 
 ### `health`
diff --git a/docs/cli/models.md b/docs/cli/models.md
index 6e013fb3a19..4c0fdb81248 100644
--- a/docs/cli/models.md
+++ b/docs/cli/models.md
@@ -27,6 +27,10 @@ openclaw models scan
 `openclaw models status` shows the resolved default/fallbacks plus an auth overview.
 When provider usage snapshots are available, the OAuth/API-key status section includes
 provider usage windows and quota snapshots.
+Current usage-window providers: Anthropic, GitHub Copilot, Gemini CLI, OpenAI
+Codex, MiniMax, Xiaomi, and z.ai. Usage auth comes from provider-specific hooks
+when available; otherwise OpenClaw falls back to matching OAuth/API-key
+credentials from auth profiles, env, or config.
 Add `--probe` to run live auth probes against each configured provider profile.
 Probes are real requests (may consume tokens and trigger rate limits).
 Use `--agent <id>` to inspect a configured agent’s model/auth state. When omitted,
diff --git a/docs/concepts/usage-tracking.md b/docs/concepts/usage-tracking.md
index ca75eb567af..7d19cbe91fe 100644
--- a/docs/concepts/usage-tracking.md
+++ b/docs/concepts/usage-tracking.md
@@ -40,6 +40,10 @@ title: "Usage Tracking"
     chat-model entry, derives the window label from timestamps when explicit
     `window_hours` / `window_minutes` fields are absent, and includes the model
     name in the plan label.
+- **Xiaomi MiMo**: API key via env/config/auth store (`XIAOMI_API_KEY`).
 - **z.ai**: API key via env/config/auth store.
 
-Usage is hidden if no matching OAuth/API credentials exist.
+Usage is hidden when no usable provider usage auth can be resolved. Providers
+can supply plugin-specific usage auth logic; otherwise OpenClaw falls back to
+matching OAuth/API-key credentials from auth profiles, environment variables,
+or config.
diff --git a/docs/reference/api-usage-costs.md b/docs/reference/api-usage-costs.md
index 5a74707b8b9..47a822c9350 100644
--- a/docs/reference/api-usage-costs.md
+++ b/docs/reference/api-usage-costs.md
@@ -41,11 +41,16 @@ per-message dollar estimate that OpenClaw can show in `/usage full`.
 - `openclaw status --usage` and `openclaw channels list` show provider **usage windows**
   (quota snapshots, not per-message costs).
 - Human output is normalized to `X% left` across providers.
+- Current usage-window providers: Anthropic, GitHub Copilot, Gemini CLI,
+  OpenAI Codex, MiniMax, Xiaomi, and z.ai.
 - MiniMax note: its raw `usage_percent` / `usagePercent` fields mean remaining
   quota, so OpenClaw inverts them before display. Count-based fields still win
   when present. If the provider returns `model_remains`, OpenClaw prefers the
   chat-model entry, derives the window label from timestamps when needed, and
   includes the model name in the plan label.
+- Usage auth for those quota windows comes from provider-specific hooks when
+  available; otherwise OpenClaw falls back to matching OAuth/API-key
+  credentials from auth profiles, env, or config.
 
 See [Token use & costs](/reference/token-use) for details and examples.
 
diff --git a/docs/reference/token-use.md b/docs/reference/token-use.md
index ce5b0bad5d7..a2de7ce82e0 100644
--- a/docs/reference/token-use.md
+++ b/docs/reference/token-use.md
@@ -60,6 +60,8 @@ Other surfaces:
 - **TUI/Web TUI:** `/status` + `/usage` are supported.
 - **CLI:** `openclaw status --usage` and `openclaw channels list` show
   normalized provider quota windows (`X% left`, not per-response costs).
+  Current usage-window providers: Anthropic, GitHub Copilot, Gemini CLI,
+  OpenAI Codex, MiniMax, Xiaomi, and z.ai.
 
 Usage surfaces normalize common provider-native field aliases before display.
 For OpenAI-family Responses traffic, that includes both `input_tokens` /
@@ -72,6 +74,9 @@ When the current session snapshot is missing cache counters, `/status` can also
 recover `cacheRead` / `cacheWrite` from the most recent transcript usage log.
 Existing nonzero live cache values still take precedence over transcript
 fallback values.
+Usage auth for provider quota windows comes from provider-specific hooks when
+available; otherwise OpenClaw falls back to matching OAuth/API-key credentials
+from auth profiles, env, or config.
 
 ## Cost estimation (when shown)