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

# Rate limits & quotas

> Daily quota tiers and per-minute burst limits.

Two separate limits apply to every request.

## Daily quota

| Tier                              | Limit                | Resets                                      |
| --------------------------------- | -------------------- | ------------------------------------------- |
| Guest (no key / unlinked network) | 3 messages / network | Not daily; a lifetime allowance per network |
| Wallet-linked (`ltk_` key)        | 50 messages / day    | 00:00 UTC                                   |

Check remaining quota via response headers on every call:

| Header              | Meaning                                                     |
| ------------------- | ----------------------------------------------------------- |
| `X-Lethe-Remaining` | Requests left in the current window.                        |
| `X-Lethe-Limit`     | Total quota for the window.                                 |
| `X-Lethe-Connect`   | *(only on 429s)* URL to link a wallet and raise your limit. |

When quota is exhausted, you get a `429` with code `quota_exceeded` and a message telling you whether to link a wallet (guest) or wait for the daily reset (wallet-linked). See [Errors](/api-reference/errors).

## Per-minute burst limit

Independent of daily quota, requests are throttled per minute:

| Identity             | Requests / minute |
| -------------------- | ----------------- |
| Guest                | 20                |
| Wallet-linked member | 60                |

Exceeding this returns `429` with code `rate_limited`.

## Getting a higher limit

Link a wallet at [`/cli`](https://asklethe.ai/cli) to move from the guest tier to the member tier on both daily quota and burst limit.