> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getsly.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Request a rail quote

> Get FX rate, fee, and estimated settlement time for a corridor. Expires in ~30 seconds. Use to display to user before settlement.



## OpenAPI

````yaml /api-reference/openapi.json post /v1/ucp/quote
openapi: 3.1.0
info:
  title: Sly API
  description: >-
    The Agentic Economy Platform — stablecoin payments, agent wallets,
    multi-protocol commerce, and AI agent orchestration.
  version: 1.0.0
  contact:
    name: Sly
    url: https://getsly.ai
    email: support@getsly.ai
servers:
  - url: https://api.getsly.ai/v1
    description: Production
  - url: https://sandbox.getsly.ai/v1
    description: Sandbox
security:
  - bearerAuth: []
paths:
  /v1/ucp/quote:
    post:
      tags:
        - UCP
      summary: Request a rail quote
      description: >-
        Get FX rate, fee, and estimated settlement time for a corridor. Expires
        in ~30 seconds. Use to display to user before settlement.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                corridor:
                  type: string
                  enum:
                    - pix
                    - spei
                    - auto
                amount:
                  type: number
                  exclusiveMinimum: 0
                  maximum: 100000
                currency:
                  type: string
                  enum:
                    - USD
                    - USDC
              required:
                - amount
                - currency
      responses:
        '200':
          description: Quote
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/UCPQuote'
                required:
                  - data
        '400':
          description: Unsupported corridor / currency
          content:
            application/json:
              schema:
                allOf:
                  - $ref: '#/components/schemas/Error'
                  - properties:
                      error:
                        type: string
                      code:
                        type: string
                      details: {}
      security:
        - bearerAuth: []
components:
  schemas:
    UCPQuote:
      type: object
      properties:
        corridor:
          type: string
          enum:
            - pix
            - spei
            - auto
        amount:
          type: number
        currency:
          type: string
          enum:
            - USD
            - USDC
        rate:
          type: string
        fee:
          type: string
        receive_amount:
          type: string
        receive_currency:
          type: string
        expires_at:
          type: string
          format: date-time
      required:
        - corridor
        - amount
        - currency
        - rate
        - fee
        - receive_amount
        - receive_currency
        - expires_at
    Error:
      type: object
      properties:
        error:
          type: string
        code:
          type: string
        details: {}
        request_id:
          type: string
      required:
        - error
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        API key (pk_test_* or pk_live_*), JWT session, agent token (agent_*),
        Ed25519 session (sess_*), or portal token (portal_*).

````