# wallet_prepareCalls > For the complete documentation index, see [llms.txt](/docs/llms.txt). POST https://api.g.alchemy.com/v2/{apiKey} This method is used to prepare a user operation for submission. It will return a built user operation and a signature request which needs to be signed by the user before submitting to wallet_sendPreparedCalls Reference: https://www.alchemy.com/docs/wallets/api-reference/smart-wallets/wallet-api-endpoints/wallet-prepare-calls ## Parameters | Name | Type | Required | Description | |------|------|----------|-------------| | params[0] | object | Yes | | ## Result **prepareCallsResponse** (object) ## Example ### Request ```json { "jsonrpc": "2.0", "method": "wallet_prepareCalls", "params": [ { "calls": [ { "to": "0x1234567890123456789012345678901234567890", "data": "0x" } ], "from": "0xa363219d7C0b8673df17529D469Db9eFF0f35D2A", "chainId": "0x01", "capabilities": { "paymasterService": { "policyId": "11111111-2222-3333-4444-555555555555" } } } ], "id": 1 } ``` ### Response ```json { "jsonrpc": "2.0", "result": { "type": "user-operation-v070", "data": { "sender": "0xa363219d7C0b8673df17529D469Db9eFF0f35D2A", "nonce": "0x10000000000000000", "callData": "0x34fcd5be0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000200000000000000000000000001234567890123456789012345678901234567890000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000", "paymaster": "0x3f222Df6aB18C1E10d0Ec136503c3B0dfd929048", "paymasterData": "0x0000000000000000682d7e7c9fa6f71c28c31141a11ac9eb2bdbe898ddbd42a4f7085f8bb3380ba75dd9231a386e24fe5a84777217c907391e983b5b0f78a4a9d0fd1c8631dd22c10e106b461c", "paymasterPostOpGasLimit": "0x0", "paymasterVerificationGasLimit": "0x74d3", "maxPriorityFeePerGas": "0x60e4b0", "maxFeePerGas": "0x1bf52290", "callGasLimit": "0x2bb8", "verificationGasLimit": "0xc845", "preVerificationGas": "0x14b74" }, "chainId": "0x66eee", "signatureRequest": { "type": "personal_sign", "data": { "raw": "0xc69e468aa6fafb5c7298c02841e76f976b433018266af39a5807bc29ea9ad392" }, "rawPayload": "0x2a8073568c8fad3edf15f70c3471a7fff18e1d57c650a501ab47f57a5c1f0e39" }, "feePayment": { "sponsored": false, "tokenAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "maxAmount": "0x1f34" }, "details": { "type": "user-operation", "data": { "hash": "0xc69e468aa6fafb5c7298c02841e76f976b433018266af39a5807bc29ea9ad392", "calls": [ { "to": "0x1234567890123456789012345678901234567890", "data": "0x" } ] } } }, "id": 1 } ``` ## Code Examples ### cURL ```bash curl --request POST \ --url https://api.g.alchemy.com/v2/docs-demo \ --header 'Content-Type: application/json' \ --data '{ "jsonrpc": "2.0", "id": 1, "method": "wallet_prepareCalls", "params": [ { "calls": [ { "to": "0x1234567890123456789012345678901234567890", "data": "0x" } ], "from": "0xa363219d7C0b8673df17529D469Db9eFF0f35D2A", "chainId": "0x01", "capabilities": { "paymasterService": { "policyId": "11111111-2222-3333-4444-555555555555" } } } ] }' ``` ### JavaScript ```javascript const options = { method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'wallet_prepareCalls', params: [ { calls: [{to: '0x1234567890123456789012345678901234567890', data: '0x'}], from: '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A', chainId: '0x01', capabilities: {paymasterService: {policyId: '11111111-2222-3333-4444-555555555555'}} } ] }) }; fetch('https://api.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://api.g.alchemy.com/v2/docs-demo" payload = { "jsonrpc": "2.0", "id": 1, "method": "wallet_prepareCalls", "params": [ { "calls": [ { "to": "0x1234567890123456789012345678901234567890", "data": "0x" } ], "from": "0xa363219d7C0b8673df17529D469Db9eFF0f35D2A", "chainId": "0x01", "capabilities": { "paymasterService": { "policyId": "11111111-2222-3333-4444-555555555555" } } } ] } 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://api.g.alchemy.com/v2/docs-demo" payload := strings.NewReader("{\n \"jsonrpc\": \"2.0\",\n \"id\": 1,\n \"method\": \"wallet_prepareCalls\",\n \"params\": [\n {\n \"calls\": [\n {\n \"to\": \"0x1234567890123456789012345678901234567890\",\n \"data\": \"0x\"\n }\n ],\n \"from\": \"0xa363219d7C0b8673df17529D469Db9eFF0f35D2A\",\n \"chainId\": \"0x01\",\n \"capabilities\": {\n \"paymasterService\": {\n \"policyId\": \"11111111-2222-3333-4444-555555555555\"\n }\n }\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://api.g.alchemy.com/v2/docs-demo") .header("Content-Type", "application/json") .body("{\n \"jsonrpc\": \"2.0\",\n \"id\": 1,\n \"method\": \"wallet_prepareCalls\",\n \"params\": [\n {\n \"calls\": [\n {\n \"to\": \"0x1234567890123456789012345678901234567890\",\n \"data\": \"0x\"\n }\n ],\n \"from\": \"0xa363219d7C0b8673df17529D469Db9eFF0f35D2A\",\n \"chainId\": \"0x01\",\n \"capabilities\": {\n \"paymasterService\": {\n \"policyId\": \"11111111-2222-3333-4444-555555555555\"\n }\n }\n }\n ]\n}") .asString(); ``` ### C# ```csharp using RestSharp; var options = new RestClientOptions("https://api.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\": \"wallet_prepareCalls\",\n \"params\": [\n {\n \"calls\": [\n {\n \"to\": \"0x1234567890123456789012345678901234567890\",\n \"data\": \"0x\"\n }\n ],\n \"from\": \"0xa363219d7C0b8673df17529D469Db9eFF0f35D2A\",\n \"chainId\": \"0x01\",\n \"capabilities\": {\n \"paymasterService\": {\n \"policyId\": \"11111111-2222-3333-4444-555555555555\"\n }\n }\n }\n ]\n}", false); var response = await client.PostAsync(request); Console.WriteLine("{0}", response.Content); ``` ## OpenRPC Method Specification ```yaml name: wallet_prepareCalls description: This method is used to prepare a user operation for submission. It will return a built user operation and a signature request which needs to be signed by the user before submitting to wallet_sendPreparedCalls params: - name: params[0] required: true schema: type: object required: - from - chainId properties: calls: type: array items: type: object required: - to properties: to: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') data: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' value: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' from: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') chainId: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' capabilities: type: object properties: permissions: anyOf: - type: object required: - context properties: context: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Permissions context - type: object required: - sessionId - signature properties: sessionId: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' signature: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Remote permission paymasterService: anyOf: - type: object required: - policyId properties: policyId: type: string description: The policy ID to use format: uuid description: Single policy ID - type: object required: - policyIds properties: policyIds: type: array description: The policy IDs to use items: type: string format: uuid description: Multiple policy IDs type: object properties: onlyEstimation: type: boolean description: If true, will only estimate fees. Skips signature request and gas sponsorship erc20: anyOf: - type: object required: - tokenAddress - preOpSettings properties: tokenAddress: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') description: The address of the token to pay gas with maxTokenAmount: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The maximum amount of tokens to allow during ERC20 gas payment preOpSettings: type: object required: - autoPermit description: ERC20 Paymaster Settings for pre-op policies (autoPermit) properties: autoPermit: type: object required: - below - amount description: Settings for automatically injecting a Permit signature for ERC20 gas payment properties: below: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The amount below which a Permit signature will be injected amount: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The amount of tokens to Permit to the paymaster for gas payment durationSeconds: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The duration of the Permit signature in seconds additionalProperties: false description: ERC20 Paymaster Settings with preOpSettings (autoPermit) - type: object required: - tokenAddress - preOpSettings properties: tokenAddress: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') description: The address of the token to pay gas with maxTokenAmount: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The maximum amount of tokens to allow during ERC20 gas payment preOpSettings: type: object required: - permitDetails description: ERC20 Paymaster Settings for pre-op policies (permitDetails) properties: permitDetails: type: object required: - deadline - value description: Details of the returned Permit signature properties: deadline: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The deadline in the signed Permit object value: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The value in the signed Permit object additionalProperties: false description: ERC20 Paymaster Settings with preOpSettings (permitDetails) - type: object required: - tokenAddress - postOpSettings properties: tokenAddress: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') description: The address of the token to pay gas with maxTokenAmount: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The maximum amount of tokens to allow during ERC20 gas payment postOpSettings: type: object description: ERC20 Paymaster Settings for post-op policies properties: autoApprove: anyOf: - type: boolean description: Automatically inject approval for the exact amount needed for this operation - type: object required: - below - amount properties: below: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The amount below which an approval will be injected amount: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The amount of tokens to approve to the paymaster for gas payment description: Settings for automatically injecting an approval for ERC20 gas payment with specific thresholds additionalProperties: false description: ERC20 Paymaster Settings with postOpSettings - type: object required: - tokenAddress properties: tokenAddress: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') description: The address of the token to pay gas with maxTokenAmount: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: The maximum amount of tokens to allow during ERC20 gas payment additionalProperties: false description: No auto approval (requires manual ERC20 approvals to paymaster contract) description: ERC20 Paymaster Settings errorMessage: 'ERC20 settings must specify only one of: preOpSettings, postOpSettings, or neither (for manual approvals). Cannot specify both preOpSettings and postOpSettings' 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. gasParamsOverride: type: object minProperties: 1 properties: preVerificationGas: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Absolute - type: object required: - multiplier properties: multiplier: type: number description: Multiplier verificationGasLimit: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Absolute - type: object required: - multiplier properties: multiplier: type: number description: Multiplier callGasLimit: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Absolute - type: object required: - multiplier properties: multiplier: type: number description: Multiplier paymasterVerificationGasLimit: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Absolute - type: object required: - multiplier properties: multiplier: type: number description: Multiplier paymasterPostOpGasLimit: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Absolute - type: object required: - multiplier properties: multiplier: type: number description: Multiplier maxFeePerGas: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Absolute - type: object required: - multiplier properties: multiplier: type: number description: Multiplier maxPriorityFeePerGas: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Absolute - type: object required: - multiplier properties: multiplier: type: number description: Multiplier eip7702Auth: anyOf: - type: object required: - delegation properties: account: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') delegation: anyOf: - enum: - ModularAccountV2 - enum: - '0x69007702764179f14F51cdce752f4f775d74E139' - '0x0000000000000000000000000000000000000000' description: Specify EIP-7702 delegation - type: boolean description: 'Use default EIP-7702 delegation (Note: EIP-7702 is enabled by default unless you first call `wallet_requestAccount` to get a smart contract address.)' nonceOverride: type: object required: - nonceKey properties: nonceKey: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Override nonce key as hex string stateOverride: type: object description: Mapping from account address to overrides additionalProperties: anyOf: - description: Account override with full state or state diff type: object anyOf: - type: object required: - state properties: state: type: object additionalProperties: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Full account state - type: object required: - stateDiff properties: stateDiff: type: object additionalProperties: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Account state diff properties: balance: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' nonce: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' code: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' - type: object properties: balance: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' nonce: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' code: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Account override without state changes experimental_dataSuffix: type: object required: - value description: ERC-8021 transaction attribution data suffix. The wallet appends these bytes to calldata to enable interoperable attribution tracking. properties: value: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' paymasterPermitSignature: anyOf: - type: object required: - type - data properties: type: type: string enum: - secp256k1 data: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Hex-encoded signature - type: object required: - r - s - yParity properties: r: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' s: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' yParity: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: r, s, yParity - type: object required: - r - s - v properties: r: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' s: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' v: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: r, s, v description: Secp256k1 signature - type: object required: - type - data properties: type: type: string enum: - ecdsa data: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Hex-encoded signature - type: object required: - r - s - yParity properties: r: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' s: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' yParity: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: r, s, yParity - type: object required: - r - s - v properties: r: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' s: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' v: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: r, s, v description: ECDSA signature (alias for secp256k1) result: name: prepareCallsResponse schema: anyOf: - type: object required: - type - data properties: type: type: string enum: - array data: type: array items: anyOf: - type: object required: - type - data - chainId - feePayment properties: type: type: string description: User Operation (Entrypoint v0.6.0) enum: - user-operation-v060 data: type: object required: - sender - nonce - initCode - callData - callGasLimit - verificationGasLimit - preVerificationGas - maxFeePerGas - maxPriorityFeePerGas - paymasterAndData description: Unsigned User Operation (Entrypoint v0.6.0) properties: sender: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') nonce: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' initCode: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Present - type: string description: Absent enum: - 0x callData: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' callGasLimit: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' verificationGasLimit: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' preVerificationGas: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' maxFeePerGas: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' maxPriorityFeePerGas: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' paymasterAndData: anyOf: - type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Present - type: string description: Absent enum: - 0x chainId: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' signatureRequest: anyOf: - type: object required: - type - data - rawPayload properties: type: type: string enum: - personal_sign data: anyOf: - type: string minLength: 1 description: Message - type: object required: - raw properties: raw: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Raw message rawPayload: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Raw payload that can be signed if using a signer that supports signing raw bytes (such as an Alchemy Signer) description: Personal sign - type: object required: - type - data - rawPayload properties: type: type: string enum: - eth_signTypedData_v4 data: type: object required: - types - primaryType - message properties: domain: type: object properties: chainId: type: integer name: type: string salt: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' verifyingContract: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') version: type: string types: type: object description: Mapping from type name to array of field definitions additionalProperties: type: array items: type: object required: - name - type properties: name: type: string type: type: string primaryType: type: string message: type: object description: Mapping from field name to value rawPayload: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Raw payload that can be signed if using a signer that supports signing raw bytes (such as an Alchemy Signer) description: Typed data feePayment: type: object required: - sponsored - tokenAddress - maxAmount properties: sponsored: type: boolean tokenAddress: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') maxAmount: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' description: Prepared User Operation (Entrypoint v0.6.0). Returned for legacy Light Account v1.x accounts. - type: object required: - type - data - chainId - feePayment properties: type: type: string description: User Operation (Entrypoint v0.7.0) enum: - user-operation-v070 data: type: object required: - sender - nonce - callData - callGasLimit - verificationGasLimit - preVerificationGas - maxFeePerGas - maxPriorityFeePerGas description: Unsigned User Operation (Entrypoint v0.7.0) properties: sender: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') nonce: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' factory: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') factoryData: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' callData: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' callGasLimit: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' verificationGasLimit: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' preVerificationGas: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' maxFeePerGas: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' maxPriorityFeePerGas: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' paymaster: type: string pattern: ^0x.*$ errorMessage: Must be a valid Ethereum address starting with '0x' (e.g., '0xa363219d7C0b8673df17529D469Db9eFF0f35D2A') paymasterData: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' paymasterVerificationGasLimit: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' paymasterPostOpGasLimit: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' chainId: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' signatureRequest: anyOf: - type: object required: - type - data - rawPayload properties: type: type: string enum: - personal_sign data: anyOf: - type: string minLength: 1 description: Message - type: object required: - raw properties: raw: type: string pattern: ^0x.*$ errorMessage: Must be a valid hex string starting with '0x' # ... truncated (59791 chars) to keep this page under agent context limits. ```