# Rate Limit Policy (/sdk/v5_3_x/permissions/policies/rate-limit)

> For the complete documentation index, see [llms.txt](/llms.txt)



<VersionWarning version="5.3.x" />

The rate limit policy specifies the frequency at which the signer is allowed to send UserOps.

## API [#api]

```ts
import { toRateLimitPolicy } from "@zerodev/permissions/policies"

// In this example, the signer can send one UserOp per month
const rateLimitPolicy = toRateLimitPolicy({
  count: 1,
  interval: 60 * 60 * 24 * 30,  // one month in seconds
})

const validator = toPermissionValidator(publicClient, {
  entryPoint,
  kernelVersion,
  signer: someSigner,
  policies: [
    rateLimitPolicy,
    // ...other policies
  ],
})
```

Arguments to `toRateLimitPolicy`:

* `count`: the number of times the signer can send UserOps in the given internal.
* (optional) `interval`: the length of the interval, in seconds.
  * If not specified, then the interval is infinite, which means that you can use `count` to specify the number of times the signer can send UserOps in total.
* (optional) `startAt`: the starting UNIX timestamp for when the rate limit should take effect.  Before that, the signer cannot send any UserOps.