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

# API keys

> Self-serve keys with 25,000 free credits, no card required.

Self-serve keys: POST your email, click the link we send, reveal your key. Keys start with 25,000 free credits, no card required. The claim link is single-use and expires in 30 minutes; the key is shown exactly once. Rate limits apply per email and per IP.

<Steps>
  <Step title="Request a key">
    POST your email to `/v1/keys/request`. We email you a single-use claim link.

    ```bash theme={null}
    curl -s -X POST https://api.classify.ai/v1/keys/request \
      -H "Content-Type: application/json" \
      -d '{"email": "you@example.com"}'
    ```
  </Step>

  <Step title="Claim it">
    Click the link in the email to reveal your key. The link expires 30 minutes after you request it, and the key is shown exactly once, so store it somewhere safe.
  </Step>

  <Step title="Start classifying">
    Your key arrives with 25,000 free credits. Use it as a bearer token, as shown in the [Quickstart](/quickstart).
  </Step>
</Steps>

<Note>
  Lost your key or run low on credits? Manage keys and buy credits from your [account dashboard](/dashboard).
</Note>