Nationstar Mortgage Holdings

Nationstar Mortgage Holdings was a non-bank residential mortgage loan originator and servicer in the United States that was rebranded as Mr. Cooper Group.

Nationstar Mortgage Holdings is profiled on the APIs.io network. Tagged areas include Mortgage, Financial Services, Loan Servicing, and Fortune 1000.

Nationstar Mortgage Holdings’ developer surface includes engineering blog and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

5.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

MortgageFinancial ServicesLoan ServicingFortune 1000

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 5.4/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.4 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 4.3 / 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/nationstar-mortgage-holdings: 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.

Nationstar Mortgage Holdings Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Press 5

Recent news and press coverage referencing this provider.

Rocket Companies Announces Delivery of Conditional ...

2026-05-25

Mr. Cooper Launches New Mobile App to Bring the Power of AI ...

2026-05-25

Research Update: Mr. Cooper Group Inc. Ratings Ra

2026-05-25

Mr. Cooper announces new AI-driven mobile app for ...

2026-05-25

Hail to the Chief: Nationstar COO Tony Ebers ...

2026-05-25

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Successor

Successor

Source (apis.yml)

aid: nationstar-mortgage-holdings
name: Nationstar Mortgage Holdings
description: Nationstar Mortgage Holdings was a non-bank residential mortgage loan originator and servicer in the United States
  that was rebranded as Mr. Cooper Group.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nationstar-mortgage-holdings.png
tags:
- Mortgage
- Financial Services
- Loan Servicing
- Fortune 1000
url: https://raw.githubusercontent.com/api-evangelist/nationstar-mortgage-holdings/refs/heads/main/apis.yml
created: '2026-03-24'
modified: '2026-05-02'
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/nationstar-mortgage-holdings-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/Nationstar
- type: LinkedIn
  url: https://www.linkedin.com/company/nationstar-mortgage
- url: https://www.mrcooper.com
  type: Website
- url: https://www.mrcooper.com
  type: Successor
- type: Blog
  url: https://www.mrcooper.com/blog/feed/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com