> ## Documentation Index
> Fetch the complete documentation index at: https://fdbad6a-heedeo-e1965c.manicule.dev/llms.txt
> Use this file to discover all available pages before exploring further.
> For every page in one file, fetch https://fdbad6a-heedeo-e1965c.manicule.dev/llms-full.txt (large).
> To search and read these docs as tools, connect the MCP server at https://fdbad6a-heedeo-e1965c.manicule.dev/api/mcp.
> Every agent surface: https://fdbad6a-heedeo-e1965c.manicule.dev/.well-known/llms-manifest.json

# 8. Billing (/billing)

<!-- agent-signals: reading_time_min: 1 · est_tokens: 31 · updated: 2026-11-11 -->
Related: [Integrating Heedeo](/index.md), [Connect your app](/connect-your-app.md), [1. Quick start](/quick-start.md), [2. Serve Heedeo from your own domain (do this before you go live)](/serve-heedeo-from-your-own-domain.md), [3. One server call: evaluate or log](/one-server-call.md), [4. The fields to act on](/the-fields-to-act-on.md)

One identification is one `identify()` call; page loads are free. Call `identify()` only at the actions you send to events.