How an agent gets a ZenMux · Pay As You Go key through KeyKeeper, what to choose on zenmux.ai, and how KeyKeeper verifies it.

Template id	`zenmux-payg` (also `zenmux`)
Field	`zenmux-api-key` → `ZENMUX_API_KEY` · secret
Key looks like	whether it can be viewed again is unconfirmed
Created at	zenmux.ai
Verified by KeyKeeper	not verified
Template checked	2026-09-17

What the agent does

keykeeper providers show zenmux-payg
keykeeper save --provider zenmux-payg --from-clipboard --create --purpose "what this task does"
keykeeper run -c zenmux-payg -- <your command>

--provider zenmux-payg fills in the credential id and the field. The environment variable is the one ZenMux's own tools read, so nothing has to be mapped.

What only you can do

选择 Pay As You Go 管理页而非订阅页

为独立项目创建按量 API key

核对账户余额和目标模型可用性

Copy the key, then approve the save in KeyKeeper's window.

What to choose

Only save a pay-as-you-go API key from this page. A Builder Plan subscription key uses a different billing balance; use zenmux-builder instead. No general key-scope guarantee is documented.

The agent is told the same thing. It opens the page for you and says what to pick; it never logs in, passes 2FA or pays on your behalf.

What KeyKeeper checks

Before writing: the value must look like a ZenMux · Pay As You Go key (whether it can be viewed again is unconfirmed). A wrong paste is refused before anything is stored, and the agent is told why — without the value.
After saving: ZenMux · Pay As You Go offers no read-only endpoint KeyKeeper can use, so the first real call is the test.

Endpoints

The key is a bearer token for these endpoints. keykeeper run sets only the variables above; point your client at the base URL yourself.

OpenAI compatible — https://zenmux.ai/api/v1
Anthropic Messages — https://zenmux.ai/api/anthropic
Google Vertex AI compatible — https://zenmux.ai/api/vertex-ai

Rotation and expiry

未确认统一有效期；以创建页面显示的实际日期为准，未知时不要猜测。 Rotate or revoke at zenmux.ai.

ZenMux · Pay As You Go