# Gas Sponsorship API Endpoints

> The Gas Sponsorship API Endpoints allows you to sponsor gas fees for your users, removing the biggest barrier to entry.

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

# What are Gas Coverage API endpoints?

The Gas Coverage API is a set of methods that allow you to sponsor gas for transactions, abstracting away the concept of “gas”. Below are the Gas Coverage API endpoints available and the corresponding docs for each of them.

| Method                                                                                                                                                         | Description                                                                                                                                                                                                             |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [alchemy_requestGasAndPaymasterAndData](/docs/wallets/api-reference/gas-manager-admin-api/gas-abstraction-api-endpoints/alchemy-request-gas-and-paymaster-and-data) | **\[Start here / Recommended]** Requests gas sponsorship and gas estimates for a `UserOperation` on EVM networks. If approved, returns: 1. `paymaster` and `paymasterData` 2. gas and fee estimates.                    |
| [alchemy_requestPaymasterAndData](/docs/wallets/api-reference/gas-manager-admin-api/gas-abstraction-api-endpoints/alchemy-request-paymaster-and-data)               | **\[To be deprecated]** Requests gas sponsorship for a `UserOperation` on EVM networks. If approved, returns`paymaster` and `paymasterData`.                                                                            |
| [pm_getPaymasterStubData](/docs/wallets/api-reference/gas-manager-admin-api/gas-abstraction-api-endpoints/pm-get-paymaster-stub-data)                               | Returns stub values to be used in paymaster-related fields of an unsigned user operation for gas estimation on EVM networks.                                                                                            |
| [pm_getPaymasterData](/docs/wallets/api-reference/gas-manager-admin-api/gas-abstraction-api-endpoints/pm-get-paymaster-data)                                        | Returns values to be used in paymaster-related fields of a signed user operation on EVM networks. These are not stub values and will be included in a signed user operation as part of an `eth_sendUserOperation` call. |
| [alchemy_requestFeePayer](/docs/wallets/api-reference/gas-manager-admin-api/gas-abstraction-api-endpoints/alchemy-request-fee-payer)                                | Request fee sponsorship for a Solana `transaction`. Returns the updated `serializedTransaction`, fee and rent estimates, and optional CPI rent-prefunding details.                                                      |
| [alchemy_requestPaymasterTokenQuote](/docs/wallets/api-reference/gas-manager-admin-api/gas-abstraction-api-endpoints/alchemy-request-paymaster-token-quote)         | Requests ERC20 fee quote for a `UserOperation`. Optionally accepts fee parameter overrides to be used in the `UserOperation`                                                                                            |