> ## Documentation Index > Fetch the complete documentation index at: https://docs.eco.com/llms.txt > Use this file to discover all available pages before exploring further. # Open quoting service > Exact-input quotes from every solver without an API key, via the separate quotes.eco.com service. `POST https://quotes.eco.com/api/v3/quotes/exactIn` returns every solver's quote for an exact-input transfer. No API key or account is needed. It is a different service from the [v1 API](/api-reference/introduction), with a different request and response format: | | Open quoting service | v1 API | | --------------- | ------------------------------------------------------------- | ------------------------------------------------------ | | Host | `quotes.eco.com` | `api.eco.com/v1` | | Field names | `dAppID`, `sourceChainID`, `sourceToken` | `dappId`, `source.chainId`, `source.token` | | Response | `201` with `{ data: [ … ] }`, one entry per solver | `200` with one top-level quote object | | Funding | Publish and fund the intent on the Portal with `encodedRoute` | Ready-to-send transaction, or gasless submit endpoints | | Partner pricing | No | Yes, with an API key | Each entry in `data` carries `quoteData.quoteResponse` (amounts, fees, `deadline`, `encodedRoute`) and `quoteData.contracts` (the source and destination Portal and the prover). `destinationAmount` and `minimumDestinationAmount` are what the recipient receives. An empty `data` array means no solver quoted the route. The two formats are not interchangeable with v1. ## Errors and limits * `400`: invalid fields, in the format `{ statusCode, createdBy: "ValidationFilter", validationErrors }`. `dAppID` allows letters, digits, dots, underscores, and hyphens, up to 64 characters. * `429`: rate limited, by Eco or by an upstream quote provider. Honor `Retry-After` when present. * `5xx`: service failure. Retry with backoff. No requests-per-second quota is published for this service. ## OpenAPI ````yaml public-quote.openapi.json POST /api/v3/quotes/exactIn openapi: 3.0.3 info: title: Eco open quoting service version: '3' servers: - url: https://quotes.eco.com security: [] paths: /api/v3/quotes/exactIn: post: tags: - Quotes V3 summary: Request public exact-in quotes description: >- Returns every solver quote for an exact-input transfer, without an API key. This is the open quoting service at `quotes.eco.com`, not the v1 API: it uses `dAppID`, `sourceChainID`-style field names and answers `201` with `{ data: [...] }`, one entry per solver. The chosen quote is published and funded on the source Portal with `encodedRoute` (see the Routes REST API guide). Partner pricing and gasless funding are available on the v1 API only. No published requests-per-second quota. Handle `429` and honor `Retry-After` when present. Examples use real mainnet token and Portal addresses with placeholder wallets. operationId: QuotesV3Controller_getReverseQuotes parameters: [] requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/QuotesRequestV3DTO' examples: op-to-base: summary: 1 USDC from OP Mainnet to Base value: dAppID: your-app intentExecutionTypes: - SELF_PUBLISH quoteRequest: sourceChainID: 10 destinationChainID: 8453 sourceToken: '0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85' destinationToken: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913' sourceAmount: '1000000' funder: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266' recipient: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8' responses: '201': description: Successfully retrieved exact in quotes from solvers content: application/json: schema: $ref: '#/components/schemas/QuotesResponseV3DTO' examples: one-solver: summary: Live response shape (encodedRoute trimmed; ~2 KB in full) value: data: - quoteID: quote:ae2fe3f2-ca9b-4fc9-97c7-1d77250815e0 quoteResponseID: quoteResponse:4ba1a3d5-366b-41d7-99b3-aad76dda92d9 solverID: '0x5Bc2DBb5db4a7AC63256e5fCD3ED4886C7dB4AE7' quoteData: contracts: sourcePortal: '0xEC000064576f9C95a8623Bc0eff3db6d296ea6df' destinationPortal: '0xEC000064576f9C95a8623Bc0eff3db6d296ea6df' prover: '0xeC00008537c1F26E739486BCFCC818d81234d5aD' quoteResponse: intentExecutionType: SELF_PUBLISH sourceChainID: 10 destinationChainID: 10 finalDestinationChainID: 8453 sourceToken: '0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85' destinationToken: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913' sourceAmount: '1000000' destinationAmount: '969873' minimumDestinationAmount: '969873' funder: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266' refundRecipient: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266' recipient: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8' fees: - name: Eco Protocol Fee description: >- Protocol fee for fulfilling intent on chain 8453 token: address: '0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85' decimals: 6 symbol: USDC amount: '30127' kinds: - kind: protocol amount: '30127' basis: estimate deadline: 1789528743 quoteExpiry: 1789528083 estimatedFulfillTimeSec: 30 encodedRoute: >- 0x0000000000000000000000000000000000000000000000000000000000000020… empty: summary: No solver quoted the request value: data: [] '400': description: 'Validation failure. Example: omit quoteRequest.' content: application/json: examples: empty-body: summary: 'Live: empty body' value: statusCode: 400 createdBy: ValidationFilter validationErrors: dAppID: >- dAppID should not be empty, dAppID must be a string, dAppID must be shorter than or equal to 64 characters, dAppID may only contain letters, digits, dots, underscores, and hyphens quoteRequest: quoteRequest should not be empty '403': description: Access restricted. '429': description: Rate limit. Honor Retry-After when supplied. '500': description: Service failure. security: [] components: schemas: QuotesRequestV3DTO: type: object properties: dAppID: type: string description: Unique identifier for the client application making the request example: your-app intentExecutionTypes: type: array description: Array of intent execution types to fetch quotes for example: - SELF_PUBLISH items: type: string enum: - SELF_PUBLISH - GASLESS quoteRequest: description: >- Cross-chain token swap request details including source/destination tokens and addresses allOf: - $ref: '#/components/schemas/QuoteRequestV3DTO' contracts: description: >- Optional contract addresses to use for the cross-chain swap (will use defaults if not specified) allOf: - $ref: '#/components/schemas/QuotesV3RequestContractsDTO' required: - dAppID - intentExecutionTypes - quoteRequest QuotesResponseV3DTO: type: object properties: data: description: Array of solver quote responses type: array items: $ref: '#/components/schemas/SolverQuoteV2ResponseDTO' required: - data QuoteRequestV3DTO: type: object properties: sourceChainID: type: number description: Chain ID of the source network where tokens will be sent from example: 10 destinationChainID: type: number description: Chain ID of the destination network where tokens will be received example: 8453 sourceToken: type: string description: Contract address of the token being sent on the source chain example: '0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85' destinationToken: type: string description: >- Contract address of the token to be received on the destination chain example: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913' sourceAmount: type: string description: >- Amount of source tokens to send, specified as a string representation of a bigint example: '1000000' funder: type: string description: Address that will provide the tokens and pay for the transaction example: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266' refundRecipient: type: string description: >- Address to receive refunds if the intent fails (defaults to funder if not specified) example: '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266' recipient: type: string description: Address that will receive the tokens on the destination chain example: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8' required: - sourceChainID - destinationChainID - sourceToken - destinationToken - sourceAmount - funder - recipient QuotesV3RequestContractsDTO: type: object properties: sourcePortal: type: string description: >- Contract address for the intent source (where intents are created and managed) example: '0x1234567890abcdef1234567890abcdef12345678' destinationPortal: type: string description: >- Contract address for the inbox (receives and processes cross-chain messages) example: '0x567890abcdef1234567890abcdef1234567890ab' prover: type: string description: >- Contract address for the prover (handles cross-chain proof verification) example: '0xabcdef1234567890abcdef1234567890abcdef12' SolverQuoteV2ResponseDTO: type: object properties: quoteID: type: string solverID: type: string receiveSignedIntentUrl: type: string quoteData: $ref: '#/components/schemas/SolverQuoteDataV2DTO' quoteResponseID: type: string description: Quote-response identifier, when supplied. required: - quoteID - solverID - receiveSignedIntentUrl - quoteData SolverQuoteDataV2DTO: type: object properties: quoteResponse: description: >- Detailed quote information including tokens, amounts, fees, and timing allOf: - $ref: '#/components/schemas/QuoteResponseDataV3DTO' contracts: description: Contract addresses required for executing this cross-chain swap allOf: - $ref: '#/components/schemas/QuoteV3ResponseContractsDTO' required: - contracts QuoteResponseDataV3DTO: type: object properties: intentExecutionType: type: string enum: - SELF_PUBLISH - GASLESS description: The execution type for this quote entry example: SELF_PUBLISH sourceChainID: type: number description: Chain ID of the source network where tokens will be sent from example: 1 destinationChainID: type: number description: Chain ID of the destination network where tokens will be received example: 42161 sourceToken: type: string description: Contract address of the token being sent on the source chain example: '0xA0b86a33E6441e45C3b9d1C3D6a0b5be4b7b5b5a' destinationToken: type: string description: >- Contract address of the token to be received on the destination chain example: '0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8' sourceAmount: type: string description: >- Amount of source tokens to send, as a string representation of a bigint example: '1000000' destinationAmount: type: string description: >- Amount of destination tokens to be received, as a string representation of a bigint example: '995000' funder: type: string description: Address that will provide the tokens and pay for the transaction example: '0x742d35Cc6527C92b4A1F3a2a8b1c9b3e8c4c5b2a' refundRecipient: type: string description: Address to receive refunds if the intent fails example: '0x742d35Cc6527C92b4A1F3a2a8b1c9b3e8c4c5b2a' recipient: type: string description: Address that will receive the tokens on the destination chain example: '0x8Ba1c0a8B4A4b9e8A9f1a6B7c8d9e0F1234567890' fees: description: >- Array of fees that will be charged for executing this cross-chain swap type: array items: $ref: '#/components/schemas/FeeV3DTO' deadline: type: number description: >- Unix timestamp (in seconds) after which this quote expires and cannot be executed example: 1672531200 estimatedFulfillTimeSec: type: number description: Estimated time in seconds for the cross-chain swap to be completed example: 300 encodedRoute: type: string description: ABI-encoded route data for onchain intent execution example: >- 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 required: - intentExecutionType - sourceChainID - destinationChainID - sourceToken - destinationToken - sourceAmount - destinationAmount - funder - refundRecipient - recipient - fees - deadline - estimatedFulfillTimeSec - encodedRoute QuoteV3ResponseContractsDTO: type: object properties: sourcePortal: type: string description: >- Contract address for the intent source (where intents are created and managed) example: '0x1234567890abcdef1234567890abcdef12345678' destinationPortal: type: string description: >- Contract address for the inbox (receives and processes cross-chain messages) example: '0x567890abcdef1234567890abcdef1234567890ab' prover: type: string description: >- Contract address for the prover (handles cross-chain proof verification) example: '0xabcdef1234567890abcdef1234567890abcdef12' required: - sourcePortal - destinationPortal - prover FeeV3DTO: type: object properties: name: type: string description: Name identifier for the fee type example: Solver Fee description: type: string description: Human-readable description of what this fee covers example: Fee paid to the solver for executing the cross-chain swap token: description: Token information for the fee payment allOf: - $ref: '#/components/schemas/TokenInfoV3DTO' amount: type: string description: Fee amount as a string representation of a bigint example: '1000' required: - name - description - token - amount TokenInfoV3DTO: type: object properties: address: type: string description: Contract address of the token example: '0xA0b86a33E6441e45C3b9d1C3D6a0b5be4b7b5b5a' decimals: type: number description: Number of decimal places for the token example: 6 symbol: type: string description: Token symbol or ticker example: USDC required: - address - decimals - symbol ````