> ## Documentation Index > Fetch the complete documentation index at: https://v3.docs.derive.xyz/llms.txt > Use this file to discover all available pages before exploring further. # Preview EIP-712 signing data for a quote > Public signing-preview helper that returns the EIP-712 encoding artifacts (encoded data, its hash, the action hash, and the typed-data hash) for a maker quote a client is about to sign. It does not verify signatures, persist anything, or place a quote; use it to construct and check the exact payload to sign before calling private/send_quote. ## OpenAPI ````yaml /openapi.json post /public/send_quote_debug openapi: 3.1.0 info: title: Derive v3 API version: 0.2.0 description: JSON-RPC 2.0 methods, served over WebSocket and HTTP POST. servers: - url: https://api.derive.xyz/v3 description: Production (HTTP POST base) - url: https://testnet.api.derive.xyz/v3 description: Testnet (HTTP POST base) security: [] tags: - name: Subaccounts description: >- List, inspect, and label subaccounts, portfolios, positions, and collateral. - name: Session Keys description: Register, edit, and list delegated signing keys. - name: Account description: Wallet-level account information and settings. - name: Orderbook description: Place, replace, cancel, and query orders, trigger orders, and algos. - name: RFQ description: 'Request-for-quote: send RFQs, quote, and execute block trades.' - name: Vault Shareholders description: >- Deposit into and withdraw from vaults, and track shares, requests, and performance. - name: Vault Curators description: >- Create and operate curated vaults: settle deposit and withdrawal requests, and manage vault metadata. - name: History description: >- Per-account historical records: orders, trades, transfers, and settlements. - name: Market Maker Protection description: Configure, read, and reset market-maker protection. - name: Transfers & Withdrawals description: Move collateral between subaccounts, to other wallets, and on-chain. - name: System description: Rate limits and transaction lookups. - name: Market Data description: Instruments, currencies, tickers, and market-wide feeds. - name: Referrals description: Referral codes and program performance. - name: Other description: Uncategorized. paths: /public/send_quote_debug: post: tags: - RFQ summary: Preview EIP-712 signing data for a quote description: >- Public signing-preview helper that returns the EIP-712 encoding artifacts (encoded data, its hash, the action hash, and the typed-data hash) for a maker quote a client is about to sign. It does not verify signatures, persist anything, or place a quote; use it to construct and check the exact payload to sign before calling private/send_quote. operationId: public_send_quote_debug requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/PublicSendQuoteDebugRequest' responses: '200': description: Success content: application/json: schema: $ref: '#/components/schemas/QuoteSendDebugResult' default: description: JSON-RPC error (see Error Codes) components: schemas: PublicSendQuoteDebugRequest: type: object required: - direction - legs - max_fee - nonce - rfq_id - signature - signature_expiry_sec - signer - subaccount_id properties: direction: $ref: '#/components/schemas/Direction' legs: type: array items: $ref: '#/components/schemas/PricedLegParamsAndResponse' max_fee: description: >- Non-negative decimal string of the human value (e.g. `"1.5"`), up to 12 fractional digits; a string or JSON number is accepted type: string format: decimal nonce: type: integer format: int64 rfq_id: description: UUID v4 string type: string format: uuid signature: type: string signature_expiry_sec: type: integer format: int64 signer: $ref: '#/components/schemas/Address' subaccount_id: type: integer format: uint64 minimum: 0 QuoteSendDebugResult: type: object required: - action_hash - encoded_data - encoded_data_hashed - typed_data_hash properties: action_hash: type: string encoded_data: type: string encoded_data_hashed: type: string typed_data_hash: type: string Direction: type: string enum: - buy - sell PricedLegParamsAndResponse: type: object required: - amount - direction - instrument_name - price properties: amount: description: >- Non-negative decimal string of the human value (e.g. `"1.5"`), up to 12 fractional digits; a string or JSON number is accepted type: string format: decimal direction: $ref: '#/components/schemas/Direction' instrument_name: type: string price: description: >- Non-negative decimal string of the human value (e.g. `"1.5"`), up to 12 fractional digits; a string or JSON number is accepted type: string format: decimal Address: description: 20-byte Ethereum address as a 0x-prefixed lowercase hex string. type: string maxLength: 42 minLength: 42 pattern: ^0x[0-9a-fA-F]{40}$ ```` ## Related topics - [Preview EIP-712 signing data for a quote execution](/api-reference/rfq/preview-eip-712-signing-data-for-a-quote-execution.md) - [Preview an order's EIP-712 signing data](/api-reference/orderbook/preview-an-orders-eip-712-signing-data.md) - [Preview EIP-712 encoding for a withdrawal](/api-reference/transfers-&-withdrawals/preview-eip-712-encoding-for-a-withdrawal.md)