# pm_getPaymasterData > For the complete documentation index, see [llms.txt](/docs/llms.txt). POST https://eth-mainnet.g.alchemy.com/v2/{apiKey} Returns values to be used in paymaster-related fields of a signed userOperation. These values are not stubs and will be included in a signed userOperation as part of an `eth_sendUserOperation` call. Reference: https://www.alchemy.com/docs/wallets/api-reference/gas-manager-admin-api/gas-abstraction-api-endpoints/pm-get-paymaster-data ## Parameters | Name | Type | Required | Description | |------|------|----------|-------------| | userOperation | object | Yes | Partial UserOperation object (either v0.6 or v0.7, missing signature and paymasterData). | | entryPoint | string | Yes | The EntryPoint address the request should be sent through. Must be one of the EntryPoints returned by the `supportedEntryPoints` RPC call. | | chainId | string | Yes | The chain ID of the network the userOperation will be submitted on. | | context | object | No | An object containing context. Must include a Gas Manager Policy Id and may include webhookData. | ## Result **Response** (object): The response depends on the EntryPoint version used in the request. ## Example ### Request ```json { "jsonrpc": "2.0", "method": "pm_getPaymasterData", "params": [ { "sender": "0xabcdefabcdefabcdefabcdefabcdefabcdefabcd", "nonce": "0x2", "callData": "0xdeadbeef", "callGasLimit": "0x5208", "verificationGasLimit": "0x5208", "preVerificationGas": "0x5208", "maxFeePerGas": "0x1", "maxPriorityFeePerGas": "0x1" }, "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789", "0x1", { "policyId": "69d524a7-e932-4214-8673-dcdcba31bb42" } ], "id": 1 } ``` ### Response ```json { "jsonrpc": "2.0", "result": { "paymasterAndData": "0xabc123" }, "id": 1 } ``` ## Code Examples ### cURL ```bash curl --request POST \ --url https://eth-mainnet.g.alchemy.com/v2/docs-demo \ --header 'Content-Type: application/json' \ --data '{ "jsonrpc": "2.0", "id": 1, "method": "pm_getPaymasterData", "params": [ { "sender": "string", "nonce": "string", "initCode": "string", "callData": "string", "callGasLimit": "string", "verificationGasLimit": "string", "preVerificationGas": "string", "maxFeePerGas": "string", "maxPriorityFeePerGas": "string", "eip7702Auth": { "chain_id": "string", "address": "string", "nonce": "string", "y_parity": "string", "r": "string", "s": "string" } }, "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789", "0x1", { "policyId": "69d524a7-e932-4214-8673-dcdcba31bb42" } ] }' ``` ### JavaScript ```javascript const options = { method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'pm_getPaymasterData', params: [ { sender: 'string', nonce: 'string', initCode: 'string', callData: 'string', callGasLimit: 'string', verificationGasLimit: 'string', preVerificationGas: 'string', maxFeePerGas: 'string', maxPriorityFeePerGas: 'string', eip7702Auth: { chain_id: 'string', address: 'string', nonce: 'string', y_parity: 'string', r: 'string', s: 'string' } }, '0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789', '0x1', {policyId: '69d524a7-e932-4214-8673-dcdcba31bb42'} ] }) }; fetch('https://eth-mainnet.g.alchemy.com/v2/docs-demo', options) .then(res => res.json()) .then(res => console.log(res)) .catch(err => console.error(err)); ``` ### Python ```python import requests url = "https://eth-mainnet.g.alchemy.com/v2/docs-demo" payload = { "jsonrpc": "2.0", "id": 1, "method": "pm_getPaymasterData", "params": [{ "sender": "string", "nonce": "string", "initCode": "string", "callData": "string", "callGasLimit": "string", "verificationGasLimit": "string", "preVerificationGas": "string", "maxFeePerGas": "string", "maxPriorityFeePerGas": "string", "eip7702Auth": { "chain_id": "string", "address": "string", "nonce": "string", "y_parity": "string", "r": "string", "s": "string" } }, "0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789", "0x1", { "policyId": "69d524a7-e932-4214-8673-dcdcba31bb42" }] } headers = {"Content-Type": "application/json"} response = requests.post(url, json=payload, headers=headers) print(response.text) ``` ### Go ```go package main import ( "fmt" "strings" "net/http" "io" ) func main() { url := "https://eth-mainnet.g.alchemy.com/v2/docs-demo" payload := strings.NewReader("{\n \"jsonrpc\": \"2.0\",\n \"id\": 1,\n \"method\": \"pm_getPaymasterData\",\n \"params\": [\n {\n \"sender\": \"string\",\n \"nonce\": \"string\",\n \"initCode\": \"string\",\n \"callData\": \"string\",\n \"callGasLimit\": \"string\",\n \"verificationGasLimit\": \"string\",\n \"preVerificationGas\": \"string\",\n \"maxFeePerGas\": \"string\",\n \"maxPriorityFeePerGas\": \"string\",\n \"eip7702Auth\": {\n \"chain_id\": \"string\",\n \"address\": \"string\",\n \"nonce\": \"string\",\n \"y_parity\": \"string\",\n \"r\": \"string\",\n \"s\": \"string\"\n }\n },\n \"0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789\",\n \"0x1\",\n {\n \"policyId\": \"69d524a7-e932-4214-8673-dcdcba31bb42\"\n }\n ]\n}") req, _ := http.NewRequest("POST", url, payload) req.Header.Add("Content-Type", "application/json") res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := io.ReadAll(res.Body) fmt.Println(string(body)) } ``` ### Java ```java HttpResponse response = Unirest.post("https://eth-mainnet.g.alchemy.com/v2/docs-demo") .header("Content-Type", "application/json") .body("{\n \"jsonrpc\": \"2.0\",\n \"id\": 1,\n \"method\": \"pm_getPaymasterData\",\n \"params\": [\n {\n \"sender\": \"string\",\n \"nonce\": \"string\",\n \"initCode\": \"string\",\n \"callData\": \"string\",\n \"callGasLimit\": \"string\",\n \"verificationGasLimit\": \"string\",\n \"preVerificationGas\": \"string\",\n \"maxFeePerGas\": \"string\",\n \"maxPriorityFeePerGas\": \"string\",\n \"eip7702Auth\": {\n \"chain_id\": \"string\",\n \"address\": \"string\",\n \"nonce\": \"string\",\n \"y_parity\": \"string\",\n \"r\": \"string\",\n \"s\": \"string\"\n }\n },\n \"0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789\",\n \"0x1\",\n {\n \"policyId\": \"69d524a7-e932-4214-8673-dcdcba31bb42\"\n }\n ]\n}") .asString(); ``` ### C# ```csharp using RestSharp; var options = new RestClientOptions("https://eth-mainnet.g.alchemy.com/v2/docs-demo"); var client = new RestClient(options); var request = new RestRequest(""); request.AddJsonBody("{\n \"jsonrpc\": \"2.0\",\n \"id\": 1,\n \"method\": \"pm_getPaymasterData\",\n \"params\": [\n {\n \"sender\": \"string\",\n \"nonce\": \"string\",\n \"initCode\": \"string\",\n \"callData\": \"string\",\n \"callGasLimit\": \"string\",\n \"verificationGasLimit\": \"string\",\n \"preVerificationGas\": \"string\",\n \"maxFeePerGas\": \"string\",\n \"maxPriorityFeePerGas\": \"string\",\n \"eip7702Auth\": {\n \"chain_id\": \"string\",\n \"address\": \"string\",\n \"nonce\": \"string\",\n \"y_parity\": \"string\",\n \"r\": \"string\",\n \"s\": \"string\"\n }\n },\n \"0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789\",\n \"0x1\",\n {\n \"policyId\": \"69d524a7-e932-4214-8673-dcdcba31bb42\"\n }\n ]\n}", false); var response = await client.PostAsync(request); Console.WriteLine("{0}", response.Content); ``` ## OpenRPC Method Specification ```yaml name: pm_getPaymasterData description: Returns values to be used in paymaster-related fields of a signed userOperation. These values are not stubs and will be included in a signed userOperation as part of an `eth_sendUserOperation` call. params: - name: userOperation description: Partial UserOperation object (either v0.6 or v0.7, missing signature and paymasterData). required: true schema: title: User Operation, either v0.6 or v0.7 (missing signature and paymasterData) oneOf: - title: User Operation v0.6 type: object properties: sender: description: The account making the operation title: hex encoded address type: string pattern: ^0x[0-9a-fA-F]{40}$ nonce: description: Anti-replay parameter; used as salt for first-time account creation title: hex encoded unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]*|0)$ initCode: description: The initCode of the account (needed if the account is not yet on-chain and needs creation) title: hex encoded bytes type: string pattern: ^0x[0-9a-f]*$ callData: description: Encoded data for the primary function call or operation title: hex encoded bytes type: string pattern: ^0x[0-9a-f]*$ callGasLimit: description: Gas allocated for the main execution call title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ verificationGasLimit: description: Gas allocated for verification title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ preVerificationGas: description: Gas for pre-verification execution and calldata title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ maxFeePerGas: description: Maximum fee per gas (EIP-1559) title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ maxPriorityFeePerGas: description: Max priority fee per gas (EIP-1559) title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ eip7702Auth: description: The authorization tuple that an EOA account delegates to in EIP-7702 title: Eip 7702 Auth type: object properties: chain_id: description: The chain Id of the authorization title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ address: description: The address of the authorization title: hex encoded address type: string pattern: ^0x[0-9a-fA-F]{40}$ nonce: description: The nonce for the authorization title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ y_parity: description: Y parity of signed authorizzation tuple title: hex encoded unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]*|0)$ r: description: R of signed authorizzation tuple title: hex encoded 256 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,31})|0$ s: description: S of signed authorizzation tuple title: hex encoded 256 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,31})|0$ - title: User Operation v0.7 type: object properties: sender: description: Account initiating operation title: hex encoded address type: string pattern: ^0x[0-9a-fA-F]{40}$ nonce: description: Account nonce or creation salt title: hex encoded unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]*|0)$ callData: description: Data for operation call title: hex encoded bytes type: string pattern: ^0x[0-9a-f]*$ callGasLimit: description: Gas allocated for call title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ verificationGasLimit: description: Gas allocated for verification title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ maxFeePerGas: description: Max fee per gas (EIP-1559) title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ maxPriorityFeePerGas: description: Priority fee per gas (EIP-1559) title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ paymaster: description: Paymaster contract address title: hex encoded address type: string pattern: ^0x[0-9a-fA-F]{40}$ paymasterVerificationGasLimit: description: The gas limit for paymaster verification. title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ factory: description: The account factory address (needed if and only if the account is not yet on-chain and needs to be created) title: hex encoded address type: string pattern: ^0x[0-9a-fA-F]{40}$ factoryData: description: Data for the account factory (only if the account factory exists) title: hex encoded bytes type: string pattern: ^0x[0-9a-f]*$ preVerificationGas: description: The amount of gas to pay for to compensate the bundler for pre-verification execution and calldata title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ paymasterPostOpGasLimit: description: The amount of gas to allocate for the paymaster post-op code (only if a paymaster exists) title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ eip7702Auth: description: The authorization tuple that an EOA account delegates to in EIP-7702 title: Eip 7702 Auth type: object properties: chain_id: description: The chain Id of the authorization title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ address: description: The address of the authorization title: hex encoded address type: string pattern: ^0x[0-9a-fA-F]{40}$ nonce: description: The nonce for the authorization title: hex encoded 64 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,15})|0$ y_parity: description: Y parity of signed authorizzation tuple title: hex encoded unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]*|0)$ r: description: R of signed authorizzation tuple title: hex encoded 256 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,31})|0$ s: description: S of signed authorizzation tuple title: hex encoded 256 bit unsigned integer type: string pattern: ^0x([1-9a-f]+[0-9a-f]{0,31})|0$ - name: entryPoint required: true description: The EntryPoint address the request should be sent through. Must be one of the EntryPoints returned by the `supportedEntryPoints` RPC call. schema: type: string pattern: ^0[xX][0-9a-fA-F]*$ - name: chainId required: true description: The chain ID of the network the userOperation will be submitted on. schema: type: string pattern: ^0[xX][0-9a-fA-F]+$ - name: context description: An object containing context. Must include a Gas Manager Policy Id and may include webhookData. schema: type: object required: - policyId properties: policyId: oneOf: - type: string format: uuid - type: array items: type: string format: uuid description: The policy ID or list of policy IDs. webhookData: type: string description: Additional data you can include in the request, such as proof of humanity, if you have enabled custom rules in your Gas Manager policy. erc20Context: description: Erc20 context, required to enable users to pay gas with ERC-20 tokens. title: Context for Erc20 paymaster type: object properties: tokenAddress: description: Erc20 contract address title: hex encoded address type: string pattern: ^0x[0-9a-fA-F]{40}$ maxTokenAmount: description: Maximum allowed amount of value in raw token amount title: positive decimal number type: number minimum: 0 permit: description: A 7597 typed permit title: hex encoded bytes type: string pattern: ^0x[0-9a-f]*$ result: name: Response description: The response depends on the EntryPoint version used in the request. schema: oneOf: - title: EntryPoint v0.6 Response type: object required: - paymasterAndData properties: paymasterAndData: type: string description: The 0x‑prefixed hex string for the user to put into the UO's paymasterAndData field. - title: EntryPoint v0.7 Response type: object required: - paymaster - paymasterData properties: paymaster: type: string description: The address of the paymaster. paymasterData: type: string description: The data for the paymaster in the userOperation. examples: - name: pm_getPaymasterData example params: - name: userOperation value: sender: '0xabcdefabcdefabcdefabcdefabcdefabcdefabcd' nonce: '0x2' callData: '0xdeadbeef' callGasLimit: '0x5208' verificationGasLimit: '0x5208' preVerificationGas: '0x5208' maxFeePerGas: '0x1' maxPriorityFeePerGas: '0x1' - name: entryPoint value: '0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789' - name: chainId value: '0x1' - name: context value: policyId: 69d524a7-e932-4214-8673-dcdcba31bb42 result: name: pm_getPaymasterData response value: paymasterAndData: '0xabc123' ```