Leucadia National website screenshot

Leucadia National

Leucadia National Corporation was a diversified holding company engaged in a variety of businesses, including investment banking, beef processing, manufacturing, telecommunications, and real estate. In 2018 it was renamed Jefferies Financial Group following the merger with Jefferies Group LLC. No public API program is documented under the legacy Leucadia National brand.

Leucadia National is profiled on the APIs.io network. Tagged areas include Holding Company, Investment Banking, Financial Services, Historical, and Fortune 500.

🌐 Visit website 📡 Source on GitHub
6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
Holding CompanyInvestment BankingFinancial ServicesHistoricalFortune 500

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/leucadia-national: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Leucadia National Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Press 5

Recent news and press coverage referencing this provider.

Press Releases

2026-05-25

Leucadia To Pay $70M To End Jefferies Investor Suits

2026-05-25

Leucadia National Corporation

2026-05-25

Leucadia to shed most non-financial assets, rename as ' ...

2026-05-25

Uncategorized Archives - Page 2 of 2

2026-05-25

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 About
About

Source (apis.yml)

apis.yml Raw ↑ 
aid: leucadia-national
name: Leucadia National
description: Leucadia National Corporation was a diversified holding company engaged in a variety of businesses, including
  investment banking, beef processing, manufacturing, telecommunications, and real estate. In 2018 it was renamed Jefferies
  Financial Group following the merger with Jefferies Group LLC. No public API program is documented under the legacy Leucadia
  National brand.
kind: company
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Producer
access: 1st-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/leucadia-national.png
tags:
- Holding Company
- Investment Banking
- Financial Services
- Historical
- Fortune 500
created: '2026-03-24'
modified: '2026-04-28'
url: https://raw.githubusercontent.com/api-evangelist/leucadia-national/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/leucadia-national-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/leucadia-national-corporation
- type: Website
  name: Jefferies (formerly Leucadia National)
  url: https://www.jefferies.com
- type: About
  name: Leucadia National Wikipedia
  url: https://en.wikipedia.org/wiki/Jefferies_Financial_Group
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com