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

# Stream Prices

> SSE stream of live bid/ask ticks for a single symbol.

Subscribes to Redis Pub/Sub channel `prices:metronome` (published by
broker price-receiver at 4Hz with all symbols) and filters the
requested symbol, forwarding compact {s,b,a,t} SSE events.

The query param is named `symbols` (plural) to match the convention of
other /stream/* endpoints, but the Simulator only uses one at a time.
If comma-separated, only the first symbol is subscribed.



## OpenAPI

````yaml /openapi.json get /stream/prices
openapi: 3.1.0
info:
  title: Slate API
  version: 1.0.0
  description: Trading infrastructure API.
servers:
  - url: https://api.{your-broker}.slate-labs.com
    variables:
      your-broker:
        default: broker
security: []
tags:
  - name: Authentication
  - name: API Tokens
  - name: Customers
  - name: Accounts
  - name: Orders
  - name: Instruments & Groups
  - name: Transactions
  - name: Payments
  - name: Transfers
  - name: Risk
  - name: Workflow & CRM
  - name: Messaging
  - name: Integrations
  - name: Webhooks
  - name: Compliance
  - name: Promo codes
  - name: Reporting
  - name: Audit
  - name: Fraud & moderation
  - name: Broker settings
  - name: Users
  - name: Roles & Teams
  - name: Streams (SSE)
  - name: Simulator
  - name: Observability
  - name: Prop trading
paths:
  /stream/prices:
    get:
      tags:
        - Streams (SSE)
      summary: Stream Prices
      description: |-
        SSE stream of live bid/ask ticks for a single symbol.

        Subscribes to Redis Pub/Sub channel `prices:metronome` (published by
        broker price-receiver at 4Hz with all symbols) and filters the
        requested symbol, forwarding compact {s,b,a,t} SSE events.

        The query param is named `symbols` (plural) to match the convention of
        other /stream/* endpoints, but the Simulator only uses one at a time.
        If comma-separated, only the first symbol is subscribed.
      operationId: stream_prices_stream_prices_get
      parameters:
        - name: symbols
          in: query
          required: true
          schema:
            type: string
            description: Single symbol, e.g. EURUSD
            title: Symbols
          description: Single symbol, e.g. EURUSD
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError

````