> ## Documentation Index > Fetch the complete documentation index at: https://docs.passage.coinlist.co/llms.txt > Use this file to discover all available pages before exploring further. # Quote an Ondo asset > Prices a buy or sell of an Ondo asset and returns the quantity, the per-token USD price and the decimals the quantity is denominated in. Free to poll while the user edits an order; it consumes no attestation. Takes no chain parameter, since Ondo runs no testnet and every environment prices against Ethereum mainnet. ## OpenAPI ````yaml /api-reference/openapi.json get /v1/ondo/swap/quote openapi: 3.0.0 info: title: Frontline API version: 0.1.0 servers: - url: https://api.coinlist.co variables: {} security: [] tags: - name: DocumentSubmissions - name: KYC - name: OAuth - name: Offers - name: Ondo - name: Participations - name: Pii - name: Requirements - name: Swap - name: Token - name: Wallet - name: Wallet Ownership paths: /v1/ondo/swap/quote: get: tags: - Ondo summary: Quote an Ondo asset description: >- Prices a buy or sell of an Ondo asset and returns the quantity, the per-token USD price and the decimals the quantity is denominated in. Free to poll while the user edits an order; it consumes no attestation. Takes no chain parameter, since Ondo runs no testnet and every environment prices against Ethereum mainnet. operationId: getOndoSwapQuote parameters: - description: Ondo asset symbol in: query name: symbol required: true schema: example: AAPLon type: string - description: Whether to price a buy or a sell in: query name: side required: true schema: enum: - buy - sell example: buy type: string - description: >- Quantity of the asset to price, as a decimal string of whole tokens. This is not the response's token_base_units, which is the same quantity in the asset's smallest unit. Exactly one of token_amount or notional_value is required. in: query name: token_amount required: false schema: example: '5' type: string - description: >- Dollar amount to price, as a decimal string. Exactly one of token_amount or notional_value is required. No CoinList fee is deducted: Ondo prices exactly this amount, so if you are sizing against a user's approval, subtract the fee before passing it here or the quote will overstate what they receive. in: query name: notional_value required: false schema: example: '1000' type: string - description: Requested quote duration. Omit to let Ondo apply its own default. in: query name: duration required: false schema: enum: - short - long example: short type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/OndoSwapQuote' description: Successful response. default: content: application/json: schema: $ref: '#/components/schemas/Error' description: Error response. callbacks: {} security: - OAuth2: [] components: schemas: OndoSwapQuote: additionalProperties: false description: >- Indicative, size- and side-aware price for an Ondo asset. Free to poll and does not consume an attestation. properties: asset_address: description: ERC-20 contract address of the quoted asset example: '0x14c3abf95cb9c93a8b82c1cdcb76d72cb87b2d4c' type: string asset_decimals: description: >- Decimals of the asset_address contract. token_base_units is denominated in these, so divide by 10^asset_decimals to display whole tokens. example: 18 type: integer chain_id: description: >- EIP-155 chain id the quote is priced on. Always "1": Ondo runs no testnet, so every environment prices against Ethereum mainnet. example: '1' type: string object: description: >- String representing the object's type. Objects of the same type share the same value. enum: - ondo_swap_quote type: string price: description: >- Price per whole token in USD, already scaled and so needing none of the handling token_base_units does. Ondo denominates it in USDon, which is 18 decimals on Ethereum, the only chain quoted here. example: '225.273151158540753535' type: string side: description: Side the quote was priced for enum: - buy - sell example: buy type: string symbol: description: Ondo asset symbol example: AAPLon type: string ticker: description: Ticker of the underlying security example: AAPL type: string token_base_units: description: >- Quantity of the asset in its smallest unit, as a decimal string. Use it as-is to build calldata, or scale it by asset_decimals to display it. Note this is not the token_amount request parameter, which is in whole tokens. example: '5000000000000000000' type: string required: - object - chain_id - symbol - ticker - asset_address - asset_decimals - side - token_base_units - price title: OndoSwapQuote type: object Error: additionalProperties: false properties: code: description: A human-readable message providing more details about the error. type: string errors: additionalProperties: items: type: string type: array type: object event_id: description: >- The unique identifier for the error event. This is useful for tracking and debugging. type: string message: description: >- For some errors that could be handled programmatically, a short string indicating the error code reported. type: string type: description: >- The type of error returned. One of `api_error`, `invalid_request_error` enum: - api_error - invalid_request_error type: string required: - type - message title: Error type: object securitySchemes: OAuth2: description: OAuth 2.0 authorization and token endpoints flows: authorizationCode: authorizationUrl: /oauth/authorize refreshUrl: /oauth/token scopes: {} tokenUrl: /oauth/token clientCredentials: refreshUrl: /oauth/token scopes: {} tokenUrl: /oauth/token type: oauth2 ````