ExchangeRebel

ExchangeRebel SEC 13F Institutional Holdings API

The SEC 13F Institutional Holdings API from ExchangeRebel — 4 operation(s) for sec 13f institutional holdings.

Documentation GitHub OpenAPI

Operations 4

GET /toll/finance/13f/holdings 13F holdings by filer, pilot 2026Q2 only: $0.01 RULED per call #

GET /toll/finance/13f/changes 13F holding changes by filer, pilot 2026Q2: $0.05 RULED #

GET /toll/finance/13f/filers 13F filer directory, pilot 2026Q2 only: $0.01 RULED per call #

GET /toll/finance/13f/top-holders Top 13F holders of a security, pilot 2026Q2: $0.01 RULED #

Specifications

⚙

OpenAPI

https://artifacts.apis.io/exchangerebel-com/openapi/exchangerebel-com-sec-13f-institutional-holdings-api-openapi.yml

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OpenAPI Specification

openapi: 3.2.0
info:
  title: ExchangeRebel — pay-per-call APIs for AI agents (x402 on…
  version: 1.0.0
  contact:
    name: 'ExchangeRebel (operator: Rebel Data)'
    url: https://exchangerebel.com
    email: sound.money.investing@gmail.com
  x-guidance: 'All paid operations use x402 on Solana: call without payment to get a 402 challenge (SOL recipient + USDC token account + fresh memo), pay with the memo attached via the Solana Memo program, then retry with header X-Payment-Tx: <signature> and ?toll_memo=<memo>. Challenges are dual-version: the PAYMENT-REQUIRED header carries the x402 v2 PaymentRequired object and the response body carries the same challenge in x402 v1 form for compatibility. Free operations (security: []) include each service''s /health catalog with full response shapes. Prices in x-payment-info are USD per call unless the summary says otherwise (RPC is per 1,000-request block; Telegram provisioning is per bot-month; transcription is per minute of audio).'
  description: '67 data and utility APIs behind x402 tolls, settled in SOL or USDC on Solana. Call a paid endpoint without payment to receive a 402 x402 challenge (recipient + fresh memo), pay with the memo attached via the Solana Memo program, then retry with the X-Payment-Tx header and toll_memo query parameter. Free catalog/health endpoints are marked without x-payment-info. Full catalogs: GET /toll/discovery and each service''s /health.'
servers:
- url: https://exchangerebel.com
tags:
- name: SEC 13F Institutional Holdings
paths:
  /toll/finance/13f/holdings:
    get:
      tags:
      - SEC 13F Institutional Holdings
      summary: '13F holdings by filer, pilot 2026Q2 only: $0.01 RULED per call'
      responses:
        '200':
          description: Success. Response shape is documented in the service catalog (GET /health on the service).
        '402':
          description: 'Payment Required (x402). The PAYMENT-REQUIRED response header carries the x402 v2 PaymentRequired object (base64 JSON: scheme, CAIP-2 network, amount, asset, payTo, plus the bazaar discovery extension); the response body carries the same challenge in x402 v1 form for compatibility, naming the SOL recipient and USDC token account on Solana plus a fresh memo. To pay on this service''s rail: pay with the memo attached (Solana Memo program), then retry with header ''X-Payment-Tx: <transaction signature>'' and query parameter ''toll_memo=<memo>''.'
      parameters:
      - name: cik
        in: query
        required: false
        schema:
          type: string
        description: Filer CIK (digits)
      - name: cusip
        in: query
        required: false
        schema:
          type: string
        description: 9-character CUSIP
      - name: quarter
        in: query
        required: false
        schema:
          type: string
        description: 'Quarter (pilot: 2026Q2 only)'
      - name: limit
        in: query
        required: false
        schema:
          type: string
        description: Page size, default 100, cap 1000
      x-payment-info:
        protocols:
        - x402
        price:
          mode: fixed
          currency: USD
          amount: '0.01'
      security:
      - x402Payment: []
      x-price-status: RULED
      x-data-as_of: 'Latest complete quarter: 2026Q2; pilot coverage: 2026Q2 only — quarters served: 2026Q2 only'
      operationId: getTollFinance13fHoldings
      x-operation-id-source: derived
  /toll/finance/13f/changes:
    get:
      tags:
      - SEC 13F Institutional Holdings
      summary: '13F holding changes by filer, pilot 2026Q2: $0.05 RULED'
      responses:
        '200':
          description: Success. Response shape is documented in the service catalog (GET /health on the service).
        '402':
          description: 'Payment Required (x402). The PAYMENT-REQUIRED response header carries the x402 v2 PaymentRequired object (base64 JSON: scheme, CAIP-2 network, amount, asset, payTo, plus the bazaar discovery extension); the response body carries the same challenge in x402 v1 form for compatibility, naming the SOL recipient and USDC token account on Solana plus a fresh memo. To pay on this service''s rail: pay with the memo attached (Solana Memo program), then retry with header ''X-Payment-Tx: <transaction signature>'' and query parameter ''toll_memo=<memo>''.'
      parameters:
      - name: cik
        in: query
        required: true
        schema:
          type: string
        description: Filer CIK (required)
      - name: quarter
        in: query
        required: true
        schema:
          type: string
        description: 'Quarter (required; pilot: 2026Q2 only)'
      - name: type
        in: query
        required: false
        schema:
          type: string
        description: new | add | trim | hold | exit
      - name: limit
        in: query
        required: false
        schema:
          type: string
        description: Page size, default 100, cap 1000
      x-payment-info:
        protocols:
        - x402
        price:
          mode: fixed
          currency: USD
          amount: '0.05'
      security:
      - x402Payment: []
      x-price-status: RULED
      x-data-as_of: 'Latest complete quarter: 2026Q2; pilot coverage: 2026Q2 only — quarters served: 2026Q2 only'
      operationId: getTollFinance13fChanges
      x-operation-id-source: derived
  /toll/finance/13f/filers:
    get:
      tags:
      - SEC 13F Institutional Holdings
      summary: '13F filer directory, pilot 2026Q2 only: $0.01 RULED per call'
      responses:
        '200':
          description: Success. Response shape is documented in the service catalog (GET /health on the service).
        '402':
          description: 'Payment Required (x402). The PAYMENT-REQUIRED response header carries the x402 v2 PaymentRequired object (base64 JSON: scheme, CAIP-2 network, amount, asset, payTo, plus the bazaar discovery extension); the response body carries the same challenge in x402 v1 form for compatibility, naming the SOL recipient and USDC token account on Solana plus a fresh memo. To pay on this service''s rail: pay with the memo attached (Solana Memo program), then retry with header ''X-Payment-Tx: <transaction signature>'' and query parameter ''toll_memo=<memo>''.'
      parameters:
      - name: q
        in: query
        required: false
        schema:
          type: string
        description: Filer name search
      - name: cik
        in: query
        required: false
        schema:
          type: string
        description: Filer CIK (digits)
      - name: limit
        in: query
        required: false
        schema:
          type: string
        description: Page size, default 50, cap 500
      x-payment-info:
        protocols:
        - x402
        price:
          mode: fixed
          currency: USD
          amount: '0.01'
      security:
      - x402Payment: []
      x-price-status: RULED
      x-data-as_of: 'Latest complete quarter: 2026Q2; pilot coverage: 2026Q2 only — quarters served: 2026Q2 only'
      operationId: getTollFinance13fFilers
      x-operation-id-source: derived
  /toll/finance/13f/top-holders:
    get:
      tags:
      - SEC 13F Institutional Holdings
      summary: 'Top 13F holders of a security, pilot 2026Q2: $0.01 RULED'
      responses:
        '200':
          description: Success. Response shape is documented in the service catalog (GET /health on the service).
        '402':
          description: 'Payment Required (x402). The PAYMENT-REQUIRED response header carries the x402 v2 PaymentRequired object (base64 JSON: scheme, CAIP-2 network, amount, asset, payTo, plus the bazaar discovery extension); the response body carries the same challenge in x402 v1 form for compatibility, naming the SOL recipient and USDC token account on Solana plus a fresh memo. To pay on this service''s rail: pay with the memo attached (Solana Memo program), then retry with header ''X-Payment-Tx: <transaction signature>'' and query parameter ''toll_memo=<memo>''.'
      parameters:
      - name: cusip
        in: query
        required: true
        schema:
          type: string
        description: 9-character CUSIP (required)
      - name: quarter
        in: query
        required: true
        schema:
          type: string
        description: 'Quarter (required; pilot: 2026Q2 only)'
      - name: limit
        in: query
        required: false
        schema:
          type: string
        description: Page size, default 25, cap 200
      x-payment-info:
        protocols:
        - x402
        price:
          mode: fixed
          currency: USD
          amount: '0.01'
      security:
      - x402Payment: []
      x-price-status: RULED
      x-data-as_of: 'Latest complete quarter: 2026Q2; pilot coverage: 2026Q2 only — quarters served: 2026Q2 only'
      operationId: getTollFinance13fTopHolders
      x-operation-id-source: derived
components:
  securitySchemes:
    x402Payment:
      type: apiKey
      in: header
      name: X-Payment-Tx
      description: 'x402 toll payment proof: the Solana transaction signature of a payment carrying the memo from the 402 challenge; send together with ?toll_memo=<memo>. Payment itself is made on-chain in SOL or USDC to the recipient named in the challenge.'