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

# Fund changes

> What one tracked fund changed between its newest Form 13F and the one before: new positions, adds, trims and exits, largest estimated trade first, with the share counts in both filings. The trade size is an estimate from quarter-end prices, not a fill price, and nothing inside the quarter is visible. Pages with nextCursor.

Plans: Pro.



## OpenAPI

````yaml https://alphayou.net/openapi.json get /api/v1/funds/{cik}/changes
openapi: 3.1.0
info:
  title: AlphaYou API
  version: 1.0.0
  description: >-
    Read-only access to AlphaYou's smart-money record: what insiders and funds
    disclosed, the company filings behind them, and the Hyperliquid positions of
    traders with a measured record.


    Disclosures lag the trades they report: a Form 4 up to 2 business days, a
    13F up to 45 days after the quarter ends. Hyperliquid positions carry the
    time they were observed.


    Plans:

    - Free: 4 tools, 100 requests a day, free.

    - Pro: 9 tools, 50,000 requests a day, $49 a month.


    Create a free key at https://alphayou.net/developers. Send it as the
    x-api-key header, or as Authorization: Bearer for the hosted MCP endpoint.


    Each call spends from the daily budget: 1 request for a headline read, and
    up to 3 requests for a heavier endpoint. Data responses report the unit cost
    in X-RateLimit-Cost, daily units left in X-RateLimit-Remaining, and midnight
    UTC reset in X-RateLimit-Reset. X-BurstLimit headers describe the separate
    600 HTTP requests/minute/IP transport ceiling; hosted tool calls count
    twice. Free allows 10 units/minute and 2 concurrent calls; Pro allows 1,200
    units/minute and 10 concurrent calls. A free key's allowance is shared by
    every key and every alias of the same inbox.


    Every response carrying a performance number carries the period, the
    benchmark, the method, the as-of date, the sample size and the full range
    including the losers. Numbers without those six are not published.


    Use of the API is governed by the API terms at
    https://alphayou.net/legal/api-terms.
  termsOfService: https://alphayou.net/legal/api-terms
  contact:
    name: AlphaYou
    url: https://alphayou.net/developers
    email: info@alphayou.net
servers:
  - url: https://api.alphayou.net
security:
  - ApiKeyAuth: []
  - BearerAuth: []
paths:
  /api/v1/funds/{cik}/changes:
    get:
      tags:
        - AlphaYou
      summary: Fund changes
      description: >-
        What one tracked fund changed between its newest Form 13F and the one
        before: new positions, adds, trims and exits, largest estimated trade
        first, with the share counts in both filings. The trade size is an
        estimate from quarter-end prices, not a fill price, and nothing inside
        the quarter is visible. Pages with nextCursor.


        Plans: Pro.
      operationId: alphayou_fund_changes
      parameters:
        - name: cik
          in: path
          required: true
          description: The fund's SEC CIK, taken from the funds list.
          schema:
            type: string
        - name: limit
          in: query
          required: false
          description: Rows per page, 1 to 100 (default 50).
          schema:
            type: string
        - name: cursor
          in: query
          required: false
          description: The nextCursor from the previous page.
          schema:
            type: string
      responses:
        '200':
          description: The requested records.
        '401':
          description: Missing, unrecognised or revoked API key (error key_revoked).
        '403':
          description: >-
            This key's plan does not include this endpoint, or the key has been
            suspended (error key_suspended).
        '404':
          description: Not an endpoint an API key may call.
        '429':
          description: >-
            Rate limited. The scope field says which budget ran out: minute,
            day, account (shared by all of an account's keys), or concurrency
            (too many calls running at once). Retry-After says when to come
            back, and X-RateLimit-Remaining reports what is left of today's
            budget. A call refused for going too fast (the per-minute limit)
            does not use up the day, so wait for Retry-After and try again.
        '503':
          description: >-
            The request budget could not be checked right now. Retry after the
            number of seconds in Retry-After.
      security:
        - ApiKeyAuth: []
        - BearerAuth: []
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
    BearerAuth:
      type: http
      scheme: bearer
      description: Your AlphaYou API key (ay_...).

````

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