Alpaca · Capability

Broker API — Events

Broker API — Events. 4 operations. Lead operation: Subscribe to account status events (SSE).. Self-contained Naftiko capability covering one Alpaca business surface.

Run with Naftiko AlpacaEvents

What You Can Do

GET
Suscribetoaccountstatussse — Subscribe to account status events (SSE).
/v1/v1/events/accounts/status
GET
Subscribetojournalstatussse — Subscribe to journal events (SSE).
/v1/v1/events/journals/status
GET
Subscribetotradesse — Subscribe to Trade Events (SSE)
/v1/v1/events/trades
GET
Subscribetotransferstatussse — Subscribe to Transfer Events (SSE)
/v1/v1/events/transfers/status

MCP Tools

subscribe-account-status-events-sse

Subscribe to account status events (SSE).

read-only idempotent
subscribe-journal-events-sse

Subscribe to journal events (SSE).

read-only idempotent
subscribe-trade-events-sse

Subscribe to Trade Events (SSE)

read-only idempotent
subscribe-transfer-events-sse

Subscribe to Transfer Events (SSE)

read-only idempotent

Capability Spec

broker-events.yaml Raw ↑
naftiko: 1.0.0-alpha2
info:
  label: Broker API — Events
  description: 'Broker API — Events. 4 operations. Lead operation: Subscribe to account status events (SSE).. Self-contained
    Naftiko capability covering one Alpaca business surface.'
  tags:
  - Alpaca
  - Events
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    ALPACA_API_KEY: ALPACA_API_KEY
capability:
  consumes:
  - type: http
    namespace: broker-events
    baseUri: https://broker-api.sandbox.alpaca.markets
    description: Broker API — Events business capability. Self-contained, no shared references.
    resources:
    - name: v1-events-accounts-status
      path: /v1/events/accounts/status
      operations:
      - name: suscribetoaccountstatussse
        method: GET
        description: Subscribe to account status events (SSE).
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: since
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: until
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: since_id
          in: query
          type: integer
        - name: until_id
          in: query
          type: integer
    - name: v1-events-journals-status
      path: /v1/events/journals/status
      operations:
      - name: subscribetojournalstatussse
        method: GET
        description: Subscribe to journal events (SSE).
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: since
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: until
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: since_id
          in: query
          type: integer
        - name: until_id
          in: query
          type: integer
    - name: v1-events-trades
      path: /v1/events/trades
      operations:
      - name: subscribetotradesse
        method: GET
        description: Subscribe to Trade Events (SSE)
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: since
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: until
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: since_id
          in: query
          type: integer
        - name: until_id
          in: query
          type: integer
    - name: v1-events-transfers-status
      path: /v1/events/transfers/status
      operations:
      - name: subscribetotransferstatussse
        method: GET
        description: Subscribe to Transfer Events (SSE)
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: since
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: until
          in: query
          type: string
          description: 'Format: YYYY-MM-DD'
        - name: since_id
          in: query
          type: integer
        - name: until_id
          in: query
          type: integer
    authentication:
      type: basic
      username: '{{env.ALPACA_USER}}'
      password: '{{env.ALPACA_PASS}}'
  exposes:
  - type: rest
    namespace: broker-events-rest
    port: 8080
    description: REST adapter for Broker API — Events. One Spectral-compliant resource per consumed operation, prefixed with
      /v1.
    resources:
    - path: /v1/v1/events/accounts/status
      name: v1-events-accounts-status
      description: REST surface for v1-events-accounts-status.
      operations:
      - method: GET
        name: suscribetoaccountstatussse
        description: Subscribe to account status events (SSE).
        call: broker-events.suscribetoaccountstatussse
        with:
          since: rest.since
          until: rest.until
          since_id: rest.since_id
          until_id: rest.until_id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/v1/events/journals/status
      name: v1-events-journals-status
      description: REST surface for v1-events-journals-status.
      operations:
      - method: GET
        name: subscribetojournalstatussse
        description: Subscribe to journal events (SSE).
        call: broker-events.subscribetojournalstatussse
        with:
          since: rest.since
          until: rest.until
          since_id: rest.since_id
          until_id: rest.until_id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/v1/events/trades
      name: v1-events-trades
      description: REST surface for v1-events-trades.
      operations:
      - method: GET
        name: subscribetotradesse
        description: Subscribe to Trade Events (SSE)
        call: broker-events.subscribetotradesse
        with:
          since: rest.since
          until: rest.until
          since_id: rest.since_id
          until_id: rest.until_id
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/v1/events/transfers/status
      name: v1-events-transfers-status
      description: REST surface for v1-events-transfers-status.
      operations:
      - method: GET
        name: subscribetotransferstatussse
        description: Subscribe to Transfer Events (SSE)
        call: broker-events.subscribetotransferstatussse
        with:
          since: rest.since
          until: rest.until
          since_id: rest.since_id
          until_id: rest.until_id
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: broker-events-mcp
    port: 9090
    transport: http
    description: MCP adapter for Broker API — Events. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: subscribe-account-status-events-sse
      description: Subscribe to account status events (SSE).
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: broker-events.suscribetoaccountstatussse
      with:
        since: tools.since
        until: tools.until
        since_id: tools.since_id
        until_id: tools.until_id
      outputParameters:
      - type: object
        mapping: $.
    - name: subscribe-journal-events-sse
      description: Subscribe to journal events (SSE).
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: broker-events.subscribetojournalstatussse
      with:
        since: tools.since
        until: tools.until
        since_id: tools.since_id
        until_id: tools.until_id
      outputParameters:
      - type: object
        mapping: $.
    - name: subscribe-trade-events-sse
      description: Subscribe to Trade Events (SSE)
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: broker-events.subscribetotradesse
      with:
        since: tools.since
        until: tools.until
        since_id: tools.since_id
        until_id: tools.until_id
      outputParameters:
      - type: object
        mapping: $.
    - name: subscribe-transfer-events-sse
      description: Subscribe to Transfer Events (SSE)
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: broker-events.subscribetotransferstatussse
      with:
        since: tools.since
        until: tools.until
        since_id: tools.since_id
        until_id: tools.until_id
      outputParameters:
      - type: object
        mapping: $.