# validateSponsorshipPolicies

Validates a User Operation against an array of [sponsorship policies](https://dashboard.pimlico.io/sponsorship-policies), and returns an array of sponsorship policies (alongside additional data for each policy) that are willing to sponsor the user operation.

## Usage

:::code-group
```ts [example.ts]
import { pimlicoPaymasterClient } from "./client"

const sponsorResult = await pimlicoPaymasterClient.validateSponsorshipPolicies({
    userOperation: {
        sender: "0x0C123D90Da0a640fFE54a2359D159629065775C5",
        nonce: 3n,
        initCode: "0x",
        callData: "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",
        maxFeePerGas: 113000000n,
        maxPriorityFeePerGas: 113000100n,
        signature: "0xf1513a8537a079a4d728bb87099b2c901e2c9034e60c95a4d41ac1ed75d6ee90270d52b48af30aa036e9a205ea008e1c62b317e7b3f88b3f302d45fb1ba76a191b"
    },
    sponsorshipPolicyIds: ["sp_crazy_kangaroo", "sp_malevolent_badger"]
})
/**
 * [
 *   {
 *     "sponsorshipPolicyId": "sp_crazy_kangaroo",
 *     "data": {
 *       "name": "Linea Christmas Week",
 *       "author": "Linea",
 *       "icon": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==",
 *       "description": "Linea is sponsoring the first 10 transactions for existing users between Christmas and New Year's Eve.",
 *     }
 *   }
 * ]
 */
```

```ts [client.ts]
import { createClient, http } from 'viem'
import { mainnet } from 'viem/chains'
import { pimlicoActions } from 'permissionless/actions/pimlico'
import { entryPoint07Address } from "viem/account-abstraction"

export const pimlicoPaymasterClient = createClient({ 
  chain: mainnet,
  transport: http("https://api.pimlico.io/v2/sepolia/rpc?apikey=YOUR_API_KEY_HERE")
}).extend(pimlicoActions({
    entryPoint: {
        address: entryPoint07Address,
        version: "0.7"
    }
}))
```
:::

## Returns

* **Type:** `ValidateSponsorshipPoliciesReturnType`

An array of sponsorship policy IDs and (optionally) extra data to be used by front-ends for sponsorship policies that are willing to sponsor the user operation.

```json
{
    sponsorshipPolicyId: string
    data: {
        name: string | null
        author: string | null
        icon: string | null
        description: string | null
    }
}[]
```

### name (optional)

* **Type:** `string | null`

The name of the sponsorship policy.

### author (optional)

* **Type:** `string | null`

The author of the sponsorship policy.

### icon (optional)

* **Type:** `string | null`

The icon of the sponsorship policy. The icon must be a data URI as defined in RFC-2397.

### description (optional)

* **Type:** `string | null`

The description of the sponsorship policy.

## Parameters

### userOperation

* **Type:** `UserOperation`

The User Operation object.

### sponsorshipPolicyIds

* **Type:** `string[]`

An array of sponsorship policy IDs to validate against.

## JSON-RPC Method

[`pm_validateSponsorshipPolicies`](/references/paymaster/verifying-paymaster/endpoints)