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$ man sec-13f-api

/sec-13f-api

agentutility / edge-finance / sec-13f-api
PRICE / CALL
$0.05
USDC · base mainnet · scheme: exact
METHOD
POST
CATEGORY
uncategorized
STATUS
live
NAME
sec-13f-api track how institutional investors changed their stock positions between two sec 13f-hr filings, no manual xml diffing required
synonym alias of 13f-deltas — reuses the canonical handler.
SYNOPSIS
POST https://x402.agentutility.ai/sec-13f-api
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }
↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.
DESCRIPTION

Track how institutional investors changed their stock positions between two SEC 13F-HR filings, no manual XML diffing required. Same 13f-deltas backend: given a CIK, it pulls the two most recent 13F-HR filings and diffs them into positions added, exited, increased, and reduced, each with dollar and share deltas. Send a CIK and an optional holdings limit; get back the delta lists ready for a fund-tracking dashboard or due-diligence workflow. Use it as a SEC 13F API, hedge fund position tracker, or institutional holdings delta feed.

INPUTrequest schema
propertytypedescriptionreq?
cikstringInstitutional manager's SEC CIK (e.g. '0001067983' for Berkshire Hathaway). Required — 13F filings are by CIK only, no ticker.required
limit_holdingsnumberMax positions to include in each bucket (added/exited/increased/reduced). 1-50. Default 20.optional
min_change_usdnumberFilter out moves smaller than this dollar magnitude. Default 0 (no filter).optional
OUTPUTresponse shape
fieldtypedescription
cikstring
addedstring
increasedstring
reducedstring
EXAMPLEStwo ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.agentutility.ai/sec-13f-api \
  -H 'Content-Type: application/json' \
  -d '{ }'
first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.
EXAMPLE 2 · mcp
# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the sec-13f-api tool from your MCP-aware agent.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
tags
sec13fapisec-13f-api
methods
POST
cluster
edgefinance
price
$0.05 USDC per call
ADJACENTother endpoints in edgefinance
endpointdescriptionprice
13f-deltasTracks what an institutional manager bought and sold each quarter by diffing their 13F filings, e.g.$0.05
patent-searchSearches issued US patents and published applications through the USPTO Open Data Portal.$0.05
patent-search-apiSearch USPTO patents by keyword, inventor, assignee, CPC class, or filing date range.$0.05
sec-xbrl-apiServes SEC XBRL fundamentals as a time series, replacing paid fundamentals feeds with public SEC line-item data.$0.05
xbrl-apiPulls public financial statement data from SEC Company Facts: revenue, net income, EPS, assets, cash, operating cash flow, units, form ty…$0.05
xbrl-financialsPulls company fundamentals as structured time-series straight from SEC XBRL filings.$0.05
fec-political-contributionsSearches FEC records of political donations to federal candidates, PACs, and super PACs to see who donated to whom.$0.04
earnings-calendarFinds a company's next earnings date and its recent earnings-related SEC filings.$0.03
SEE ALSO
agentutility · edgefinance · x402 · mcp · llms.txt · registry.json · bazaar.x402.org