> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apistable.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

> One API key for submission and account queries.

> Operations are enabled individually by server configuration. Disabled operations return 503 without a task. Music credit deduction is currently disabled.

## Bearer API key

Send Authorization: Bearer \<API\_KEY>. Every valid key has the same submission and read access within its own account. There are no read/write scope options in v1. Revoked keys are rejected.

Model metadata endpoints are public. Tasks and balances are always account-scoped; another account’s task ID returns 404. Keys are revealed once and must never be embedded in browser code.

[Manage keys](https://apistable.ai/console/keys)


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