> ## Documentation Index > Fetch the complete documentation index at: https://docs.useroutr.com/llms.txt > Use this file to discover all available pages before exploring further. # List the ways a payer may fund this intent > Every asset the payer may send, priced by the routing engine: what they would send, the fees that would be charged including Useroutr's own, and how long the route usually takes. Nothing here is binding: the amounts are estimates until an option is selected. Assets that cannot be routed are returned as unavailable with a reason rather than omitted. Requires no credential; the funding page token is the capability. ## OpenAPI ````yaml /api-reference/openapi.json get /v1/public/funding-intents/{token}/payment-options openapi: 3.1.0 info: title: Useroutr API version: '1' description: >- Application funding infrastructure. Two authentication layers exist and are never interchangeable: developer backends authenticate with an application API key (`apiKey`), and the Useroutr dashboard authenticates a human with a Useroutr account session (`userSession`, obtained from `/v1/auth/sign-in`). Platform operations use the operator platform key. Every response carries an `X-Request-ID` header that also appears in error envelopes. servers: - url: https://api.sandbox.useroutr.com description: 'Sandbox: ur_test_ keys, Stellar testnet' - url: https://api.useroutr.com description: 'Production: ur_live_ keys' security: [] tags: - name: Funding Intents description: Funding intent lifecycle - name: Quotes description: 'Route quotes: what a payer must send from a chosen source asset' - name: Checkout description: Public, token-addressed payer view - name: Payments description: Observed payments - name: Settlements description: Settlement state and protocol evidence - name: Refunds description: Refund requests for payments that did not satisfy an intent - name: Ledger description: Application balances and ledger entries - name: Webhooks description: Webhook endpoints, events and deliveries - name: Assets description: Supported assets - name: Applications description: Application registration and credentials - name: Request logs description: Requests made with the application's API keys, kept for 30 days paths: /v1/public/funding-intents/{token}/payment-options: get: tags: - Checkout summary: List the ways a payer may fund this intent description: >- Every asset the payer may send, priced by the routing engine: what they would send, the fees that would be charged including Useroutr's own, and how long the route usually takes. Nothing here is binding: the amounts are estimates until an option is selected. Assets that cannot be routed are returned as unavailable with a reason rather than omitted. Requires no credential; the funding page token is the capability. parameters: - schema: type: string pattern: ^[A-Za-z0-9_-]{16,128}$ in: path name: token required: true responses: '200': description: Default Response content: application/json: schema: type: object properties: object: type: string enum: - public_payment_options funding_intent_id: type: string application_name: type: string branding: type: object properties: brand_color: type: - string - 'null' logo_url: type: - string - 'null' required: - brand_color - logo_url additionalProperties: false requirement: type: object properties: amount: type: string asset: anyOf: - type: object properties: id: type: string symbol: type: string decimals: type: integer minimum: -9007199254740991 maximum: 9007199254740991 required: - id - symbol - decimals additionalProperties: false - type: 'null' required: - amount - asset additionalProperties: false payment_methods: type: array items: type: object properties: type: type: string enum: - CRYPTO - WALLET - BANK_TRANSFER available: type: boolean unavailable_reason: type: - string - 'null' required: - type - available - unavailable_reason additionalProperties: false options: type: array items: type: object properties: network: type: string asset: type: object properties: id: type: string symbol: type: string decimals: type: integer minimum: -9007199254740991 maximum: 9007199254740991 required: - id - symbol - decimals additionalProperties: false estimated_send_amount: type: - string - 'null' fees: anyOf: - type: object properties: total: type: string asset: type: string items: type: array items: type: object properties: type: type: string enum: - NETWORK - PROVIDER - SWAP - BRIDGE - USEROUTR asset: type: string amount: type: string required: - type - asset - amount additionalProperties: false required: - total - asset - items additionalProperties: false - type: 'null' estimated_duration_seconds: anyOf: - type: integer minimum: -9007199254740991 maximum: 9007199254740991 - type: 'null' available: type: boolean unavailable_reason: type: - string - 'null' required: - network - asset - estimated_send_amount - fees - estimated_duration_seconds - available - unavailable_reason additionalProperties: false expires_at: type: string required: - object - funding_intent_id - application_name - branding - requirement - payment_methods - options - expires_at additionalProperties: false '404': description: Default Response content: application/json: schema: type: object properties: error: type: object properties: code: type: string enum: - BAD_REQUEST - VALIDATION_ERROR - UNAUTHORIZED - FORBIDDEN - NOT_FOUND - CONFLICT - IDEMPOTENCY_KEY_REQUIRED - IDEMPOTENCY_KEY_REUSED - IDEMPOTENCY_REQUEST_IN_PROGRESS - APPLICATION_INACTIVE - INVALID_AMOUNT - UNSUPPORTED_ASSET - INVALID_DESTINATION - INVALID_EXPIRATION - PROTOCOL_REJECTED - PROTOCOL_UNAVAILABLE - NO_ROUTE_AVAILABLE - INSUFFICIENT_INPUT - QUOTE_EXPIRED - QUOTE_NOT_SELECTABLE - QUOTE_NOT_LOCKED - EXECUTION_NOT_FAILED - EXECUTION_NOT_RESUMABLE - LOGO_FORMAT_UNSUPPORTED - LOGO_DIMENSIONS_INVALID - LOGO_STORAGE_UNAVAILABLE - ROUTE_UNAVAILABLE - RATE_LIMITED - INVALID_CREDENTIALS - EMAIL_NOT_VERIFIED - EMAIL_ALREADY_REGISTERED - SESSION_EXPIRED - INVALID_TOKEN - INTERNAL_ERROR message: type: string requestId: type: string retryable: type: boolean details: type: array items: type: object properties: path: type: string message: type: string required: - path - message additionalProperties: false required: - code - message - requestId additionalProperties: false required: - error additionalProperties: false security: [] x-codeSamples: - lang: typescript label: Node.js SDK source: |- import { HttpCheckoutApi } from "@useroutr/checkout-core"; const checkout = new HttpCheckoutApi({ baseUrl: "https://api.sandbox.useroutr.com/v1/public", token: "8sf6B570T1UkUIPhcltW2CTdnhHtRLDK", }); const { options } = await checkout.paymentOptions(); - lang: bash label: cURL source: >- curl -X GET "https://api.sandbox.useroutr.com/v1/public/funding-intents/8sf6B570T1UkUIPhcltW2CTdnhHtRLDK/payment-options" ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.