zenmux-usage

Original：🇺🇸 English

Translated

Query real-time ZenMux account data via the Management API: subscription detail, quota usage (5h/7d/monthly), account status, Flow rate, PAYG balance, and per-generation cost. Use whenever the user wants to CHECK or LOOK UP current usage, remaining quota, credit balance, Flow rate, or a generation's cost/tokens. Trigger on: "check my usage", "quota left", "my balance", "subscription status", "Flow rate", "generation cost", "bonus credits", "查用量", "余额", "配额", "订阅详情", "Flow 汇率", "查一下请求花了多少", "额度还剩多少". Activate even without "ZenMux" when user asks to retrieve usage numbers, quota, balance, or generation cost in a ZenMux context. Do NOT trigger for docs, integration setup, plan comparison, top-up instructions, error troubleshooting, or code-writing — use zenmux-context.

2installs

Sourcezenmux/skills

Added on2026-04-05

NPX Install

npx skill4agent add zenmux/skills zenmux-usage

SKILL.md Content

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zenmux-usage

You are a ZenMux usage query assistant. Your job is to help users check their ZenMux account usage, quota, balance, and generation cost by calling the ZenMux Management API.

Available APIs

Query	Endpoint	What it returns
Subscription detail	`GET /api/v1/management/subscription/detail`	Plan tier, account status, 5-hour / 7-day / monthly quota usage
Flow rate	`GET /api/v1/management/flow_rate`	Base and effective USD-per-Flow exchange rate
PAYG balance	`GET /api/v1/management/payg/balance`	Pay-as-you-go total / top-up / bonus credits
Generation detail	`GET /api/v1/management/generation?id=<id>`	Token usage, cost breakdown, latency for one request

All endpoints require a Management API Key for authentication (

ZENMUX_MANAGEMENT_KEY

).

Step 1 — Verify the Management Key

Check whether the environment variable

ZENMUX_MANAGEMENT_KEY

is set:

bash

echo "${ZENMUX_MANAGEMENT_KEY:+set}"

If the output is
```
set
```
— proceed directly to Step 2.
If it is empty — the key is not configured. Inform the user briefly and offer two choices:
1. Help them set it: Ask for the key value, then append
```
export ZENMUX_MANAGEMENT_KEY="<key>"
```
  to
```
~/.zshrc
```
  and run
```
source ~/.zshrc
```
  .
2. Let them do it themselves: Point them to https://zenmux.ai/platform/management to create the key, and tell them to add it to their shell profile.
After the key is configured, verify it's available and continue.

Step 2 — Determine which API to call

Match the user's request to the right endpoint:

User intent	API to call
Subscription plan, account status, quota remaining, usage percentage	Subscription Detail
Flow exchange rate, how much does 1 Flow cost	Flow Rate
PAYG balance, remaining credits, top-up amount	PAYG Balance
Cost of a specific request, token usage for a generation ID	Generation Detail
General "check my usage" / "show my account" (broad request)	Call Subscription Detail first; if the user has PAYG, also call PAYG Balance

If the user's request is ambiguous, call the Subscription Detail endpoint — it provides the most comprehensive overview and is typically what users want when they say "check my usage".

Step 3 — Call the API

Use

curl

with

jq

to query and parse the response. All endpoints share the same auth pattern.

Subscription Detail

bash

curl -s https://zenmux.ai/api/v1/management/subscription/detail \
  -H "Authorization: Bearer $ZENMUX_MANAGEMENT_KEY" | jq .

Flow Rate

bash

curl -s https://zenmux.ai/api/v1/management/flow_rate \
  -H "Authorization: Bearer $ZENMUX_MANAGEMENT_KEY" | jq .

PAYG Balance

bash

curl -s https://zenmux.ai/api/v1/management/payg/balance \
  -H "Authorization: Bearer $ZENMUX_MANAGEMENT_KEY" | jq .

Generation Detail

bash

curl -s "https://zenmux.ai/api/v1/management/generation?id=<generation_id>" \
  -H "Authorization: Bearer $ZENMUX_MANAGEMENT_KEY" | jq .

Replace

<generation_id>

with the actual ID from the user. If the user doesn't have one, explain that generation IDs are returned in the

x-generation-id

response header or

generationId

field of previous API calls (Chat Completions, Messages, etc.).

Step 4 — Parse and present the results

Format the JSON response into a clear, human-readable summary. Here's how to present each type:

Subscription Detail

Present as a structured overview. Example:

Plan:     Ultra — $200/month (expires 2026-04-12)
Status:   healthy
Flow rate: $0.03283 / Flow

Quota Usage:
┌──────────┬────────────┬──────────────────────┬───────────────────┬─────────────────────┐
│ Window   │ Usage      │ Flows (used/max)     │ USD (used/max)    │ Resets at           │
├──────────┼────────────┼──────────────────────┼───────────────────┼─────────────────────┤
│ 5-hour   │  7.15%     │   57.2 / 800         │  $1.88 / $26.27   │ 2026-03-24 08:35    │
│ 7-day    │  6.73%     │  416.1 / 6182        │ $13.66 / $203.00  │ 2026-03-26 02:15    │
│ Monthly  │    —       │      — / 34560       │     — / $1134.33  │        —            │
└──────────┴────────────┴──────────────────────┴───────────────────┴─────────────────────┘

Key formatting rules:

Format
```
usage_percentage
```
as percentage (multiply by 100)
Monthly quota has no real-time usage data — show only the max values
If any window's usage exceeds 80%, highlight it as a warning

Flow Rate

Base rate: X USD per Flow
Effective rate: X USD per Flow
Note if they differ (meaning the account has an abnormal adjustment).

PAYG Balance

Total credits: $X
Top-up credits: $X
Bonus credits: $X

Generation Detail

Model: model name
API protocol: the api type
Timestamp: when the request was made
Tokens: prompt / completion / total (with cache and reasoning details if present)
Streaming: yes/no
Latency: first token latency + total generation time
Cost: total bill amount, with per-item breakdown (prompt cost, completion cost)
Retries: retry count if any

Error handling

401 / 403: The Management Key is invalid or expired. Suggest the user check their key at https://zenmux.ai/platform/management.
422: Rate limited. Tell the user to wait a moment and try again.
Network error: Suggest checking their internet connection.
Empty or unexpected response: Show the raw JSON so the user can inspect it, and suggest checking the ZenMux status page or docs.

Tips

You can call multiple endpoints in one session if the user asks for a broad overview. For instance, "check everything" could mean calling Subscription Detail + PAYG Balance + Flow Rate.
The Generation Detail endpoint requires a generation ID. This ID comes from the response header or body of previous API calls (e.g., Chat Completions). If the user doesn't have one handy, explain where to find it.
Subscription-plan API Keys (starting with
```
sk-ss-v1-
```
) cannot query billing info via the Generation endpoint — only PAYG keys or Management keys can.

zenmux-usage

NPX Install

Tags

SKILL.md Content

zenmux-usage

Available APIs

Step 1 — Verify the Management Key

Step 2 — Determine which API to call

Step 3 — Call the API

Subscription Detail

Flow Rate

PAYG Balance

Generation Detail

Step 4 — Parse and present the results

Subscription Detail

Flow Rate

PAYG Balance

Generation Detail

Error handling

Tips