ko.io
SEC Data API

Financial data
infrastructure

Institutional holdings, insider trades, and congressional stock activity. One API. Powered by ClickHouse.

Get Started — FreeDocumentation
~ / api-request
$
BH

Berkshire Hathaway

CIK: 102909 · Q3 2024
$266.5B
-4.2% QoQ
$266.5BTotal AUM
AAPL
$69.9B
BAC
$31.5B
AXP
$28.3B
KO
$23.6B
CVX
$17.5B
AUM History
Q1'23Q2'23Q3'23Q4'23Q1'24Q2'24Q3'24
41
Holdings
72.7%
Top 10
4.2ms
Response
Live from SEC EDGAR · ClickHouse
ko.io/api/v1
0+
Institutions
0M+
Data Points
<0ms
Avg Response
NVDABUY+$12.3B · 347 funds
AAPLSELL-$3.1B · 128 funds
METABUY+$8.1B · 289 funds
TSLABUY+$4.2B · 201 funds
GOOGLSELL-$2.8B · 95 funds
MSFTBUY+$5.2B · 445 funds
JPMBUY+$1.8B · 178 funds
BACSELL-$940M · 89 funds
VBUY+$2.1B · 312 funds
UNHBUY+$1.5B · 156 funds
XOMSELL-$1.2B · 67 funds
AVGOBUY+$3.8B · 234 funds
NVDABUY+$12.3B · 347 funds
AAPLSELL-$3.1B · 128 funds
METABUY+$8.1B · 289 funds
TSLABUY+$4.2B · 201 funds
GOOGLSELL-$2.8B · 95 funds
MSFTBUY+$5.2B · 445 funds
JPMBUY+$1.8B · 178 funds
BACSELL-$940M · 89 funds
VBUY+$2.1B · 312 funds
UNHBUY+$1.5B · 156 funds
XOMSELL-$1.2B · 67 funds
AVGOBUY+$3.8B · 234 funds

Three interfaces

One dataset. Any workflow.

REST API, AI agent protocol, or natural language — choose how you access SEC data.

GETGETPOSTGETGET
200 OK

REST API

Standard HTTP endpoints. JSON responses. 10+ years of SEC filings — holdings, insider trades, congress activity.

Explore API
ClaudeGPTAgentCustomMCP

MCP Server

Connect any AI agent directly to SEC data. Model Context Protocol — no glue code, no middleware.

View Docs
Which funds bought NVDA last quarter?
SELECT cik, name FROM fact_holdings WHERE ...

Text-to-SQL

Ask questions in plain English. We generate and execute SQL against 100M+ rows in real time.

Try it

Data Pipeline

From SEC filing to API
in seconds

We extract, clean, and structure 100M+ rows of SEC data into a fast, queryable API. Every field validated. Every quarter updated.

Form 13F-HRInformation Table · SEC Filing
BERKSHIRE HATHAWAY INC
CIK: 0001067983 · Filed: 2024-11-14
Name of IssuerValue ($000)Shares
APPLE INC69,899,335300,000,000
BANK OF AMER CORP31,464,605680,233,587
AMERICAN EXPRESS CO41,196,768151,610,700
COCA COLA CO23,613,406400,000,000
CHEVRON CORP17,475,356118,610,534
... 39 more holdings
sec.gov/cgi-bin/browse-edgar?action=getcompany
Raw XML/HTML

Raw SEC Filings

13F-HR, Form 4, 10-K, 10-Q — thousands of XML/HTML filings from EDGAR, updated daily.

13F-HRForm 410-K10-QDEF 14A
🏛️
100%SEC coverage
⚡
< 5 minFiling to API
✓
99.9%Data accuracy
📅
10+ yearsHistorical data

Real-time data

Live from 100M+ SEC filings

Real data, queried in real time against ClickHouse. Not cached screenshots.

Most bought by institutions — latest quarter

RankTickerNet Bought
1NVDA+$12.3B
2META+$8.1B
3AAPL+$6.7B
4MSFT+$5.2B
5AMZN+$4.8B
Live from SEC EDGAR·ClickHouse real-time queries
Get API Access →

Pricing

Simple, usage-based pricing

Start free. Scale as you grow. No credit card required.

Free

$0/month

Perfect for exploring SEC data

  • 100 requests/day
  • Core endpoints
  • Community support
Get API Key

Developer

$29/month

For developers building integrations

  • 10,000 requests/day
  • All endpoints
  • Text-to-SQL access
  • MCP Server
Subscribe
Most Popular

Team

$99/month

For teams that need scale

  • 100,000 requests/day
  • Bulk data export
  • Up to 5 team seats
  • Priority support
Subscribe

Enterprise

Custom

For institutions and funds

  • Unlimited requests
  • SLA guarantee
  • Custom integrations
  • Dedicated support
Contact Sales

7-day money-back guarantee · Cancel anytime · All prices in USD

curl https://ko.io/api/v1/holdings

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SEC data today

Free tier. No credit card. Your API key in 30 seconds.

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9,000+
Institutions
<10ms
Response time
99.9%
Uptime SLA