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XOOMAR Companies API

SEC and FINRA data on US listed companies

XOOMAR Companies API is one of 3 APIs that XOOMAR publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Companies. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 21 operations across 21 paths. It is described by OpenAPI 3.2.0, at version 2026-09-15.

Requests are made against a single base URL, https://xoomar.com.

21 operations 21 paths 0 schemas 21 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2026-09-15
Base URL
https://xoomar.com
Authentication
API Key
Contact
Terms of Service
Resource Areas
1

Authentication & Security 1

XOOMAR Companies API declares 1 security scheme for authenticating requests. An API key is passed in the header as x-api-key (apiKey).

  • apiKey — Free account key from /account

Paths & Operations 21

Across 21 paths, the API surfaces 21 operations — 21 GET. Each is listed below with its method, path, parameters, and response codes.

Companies 21

SEC and FINRA data on US listed companies

GET
/api/markets/short-interest
FINRA short interest
short_interest 1 param → 200404429
GET
/api/markets/short-volume
FINRA daily short sale volume
short_volume 6 params → 200404429
GET
/api/markets/fails-to-deliver
SEC fails to deliver
fails_to_deliver 4 params → 200404429
GET
/api/markets/threshold-list
Regulation SHO threshold securities lists
threshold_list 4 params → 200404429
GET
/api/markets/insiders
SEC Form 4 insider trades, latest across companies
insiders 2 params → 200404429
GET
/api/markets/insiders/{ticker}
SEC Form 4 trades for one ticker
insiders_ticker 4 params → 200404429
GET
/api/markets/insiders/clusters
Insider cluster buying: companies with several distinct open-market buyers
insiders_clusters 5 params → 200404429
GET
/api/markets/planned-sales
SEC Form 144 notices of proposed sale
planned_sales 2 params → 200404429
GET
/api/markets/large-holders
Schedule 13D and 13G holders above 5%
large_holders 5 params → 200404429
GET
/api/markets/funds
Tracked 13F managers
funds → 200404429
GET
/api/markets/funds/{slug}
One manager's latest 13F portfolio
funds_slug 1 param → 200404429
GET
/api/markets/financials
Company financials from XBRL
financials 1 param → 200404429
GET
/api/markets/buybacks
Share repurchases from XBRL
buybacks → 200404429
GET
/api/markets/events
8-K material events
events 3 params → 200404429
GET
/api/markets/earnings
Earnings calendar: reported 8-K Item 2.02 dates and estimates
earnings 5 params → 200404429
GET
/api/markets/earnings/{ticker}
One company's reported earnings dates and the next estimate
earnings_ticker 1 param → 200404429
GET
/api/markets/structured-products
424B2 structured note filings
structured_products 7 params → 200404429
GET
/api/markets/federal-contracts
US federal contract actions by listed parent
federal_contracts 4 params → 200404429
GET
/api/markets/startup-funding
SEC Form D private placements
startup_funding 5 params → 200404429
GET
/api/markets/ipos
IPO pipeline (S-1, F-1, 424B4, EFFECT, RW)
ipos 3 params → 200404429
GET
/api/markets/bitcoin-treasuries
Bitcoin held by public companies (XBRL)
bitcoin_treasuries → 200404429

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

xoomar-com-companies-api-openapi.yml Raw ↑

Other APIs XOOMAR publishes across the network.

XOOMAR Crypto API
XOOMAR Macro API
Where this information came from

This is an independent, third-party profile of XOOMAR Companies API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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