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

# Policies & Security

> Non-custodial model, automation, idempotency, and rate limits

## Non-custodial model

Enabling Automation allows AFK to sign transactions on your behalf using session-based, non-custodial signing. Keys are never shared with AFK. You can revoke Automation at any time from the Wallets page.

## Idempotency

* Send a unique `idempotency-key` per user and operation
* Replays with the same key return the original response (or an error if the body differs)

## Rate limits

* See [Rate limiting](/api-reference/introduction/#rate-limiting) for current limits
* Exceeding returns HTTP 429 with `Retry-After` (seconds)

## Error tracing

Every response includes `x-request-id` for support and debugging.