Lincoln National website screenshot

Lincoln National

Lincoln National Corporation, operating as Lincoln Financial Group, is a diversified financial services company offering annuities, retirement plan services, life insurance, and group protection products. The company provides solutions for employers, brokers, and retirement professionals through its LincSmart platform of API integrations.

Lincoln National publishes 3 APIs on the APIs.io network: Enrollment API, Eoi API, and Plan Design API. Tagged areas include Annuities, Benefits, Enrollment, HR, and Insurance.

Lincoln National’s developer surface includes developer portal and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
23.7/100 emerging ▬ flat Agent 17/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessApproval
1 APIs
AnnuitiesBenefitsEnrollmentHRInsuranceRetirementFortune 500

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 23.7/100 · emerging
Contract Quality 9.8 / 19
Developer Ergonomics 2.9 / 15
Access Clarity 2.0 / 15
Operational Transparency 0.5 / 10
Contract Governance 0.0 / 9
Discoverability 5.1 / 8
Regulatory Posture 1.4 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 17/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
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 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Insurance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/lincoln-national: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

Lincoln National Enrollment API

The Enrollment API from Lincoln National — 1 operation(s) for enrollment.

Lincoln National Eoi API

The Eoi API from Lincoln National — 1 operation(s) for eoi.

Lincoln National Plan Design API

The Plan Design API from Lincoln National — 1 operation(s) for plan design.

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Lincoln Financial LincSmart APIs Enrollment API

OPEN COLLECTION

Lincoln Financial LincSmart APIs Enrollment Eoi API

OPEN COLLECTION

Lincoln Financial LincSmart APIs Enrollment Plan Design API

OPEN COLLECTION

Lincoln Financial LincSmart APIs

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Lincoln National Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Lincoln National Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Lincoln National Finops

FINOPS

Security Posture 1

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

Lincoln National Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Lincoln National Agentic Access

3 operations · 2 acting

3 operations · 2 acting

AGENTIC

Press 5

Recent news and press coverage referencing this provider.

Lincoln Financial appoints Neel Adhya as chief AI and data ...

2026-05-25

Core earnings rise as Lincoln Financial (NYSE - LNC

2026-05-25

Lincoln Financial Group expands partnership to support ...

2026-05-25

Lincoln Financial Appoints Nilanjan (Neel) Adhya as EVP ...

2026-05-25

Delaware Market Conduct Examination Report The Lincoln ...

2026-05-25

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal
Portal

Documentation 1

Reference material describing how the API behaves

OpenAPI
OpenAPI

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Other 2

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap
 LincSmartPlatform
LincSmartPlatform

Source (apis.yml)

apis.yml Raw ↑ 
aid: lincoln-national
name: Lincoln National
description: Lincoln National Corporation, operating as Lincoln Financial Group, is a diversified financial services company
  offering annuities, retirement plan services, life insurance, and group protection products. The company provides solutions
  for employers, brokers, and retirement professionals through its LincSmart platform of API integrations.
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: approval
  trial: false
  try_now: false
  public: false
  label: Requires approval
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/lincoln-national.png
tags:
- Annuities
- Benefits
- Enrollment
- HR
- Insurance
- Retirement
- Fortune 500
url: https://raw.githubusercontent.com/api-evangelist/lincoln-national/refs/heads/main/apis.yml
created: '2026-03-21'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: lincoln-national:lincoln-national-enrollment-api
  name: Lincoln National Enrollment API
  description: The Enrollment API from Lincoln National — 1 operation(s) for enrollment.
  humanURL: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/index.html
  baseURL: https://www.lincolnfinancial.com
  tags:
  - Enrollment
  properties:
  - type: OpenAPI
    url: openapi/lincoln-national-enrollment-api-openapi.yml
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/index.html
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/assets/resources/info/eoi.html
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/assets/resources/info/plan.html
- aid: lincoln-national:lincoln-national-eoi-api
  name: Lincoln National Eoi API
  description: The Eoi API from Lincoln National — 1 operation(s) for eoi.
  humanURL: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/index.html
  baseURL: https://www.lincolnfinancial.com
  tags:
  - EOI
  tags_raw:
  - Eoi
  properties:
  - type: OpenAPI
    url: openapi/lincoln-national-eoi-api-openapi.yml
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/index.html
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/assets/resources/info/eoi.html
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/assets/resources/info/plan.html
- aid: lincoln-national:lincoln-national-plan-design-api
  name: Lincoln National Plan Design API
  description: The Plan Design API from Lincoln National — 1 operation(s) for plan design.
  humanURL: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/index.html
  baseURL: https://www.lincolnfinancial.com
  tags:
  - Plan Design
  properties:
  - type: OpenAPI
    url: openapi/lincoln-national-plan-design-api-openapi.yml
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/index.html
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/assets/resources/info/eoi.html
  - type: Documentation
    url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/assets/resources/info/plan.html
common:
- type: CapabilityMap
  url: capabilities/lincoln-national-capability-edges.yml
  name: Lincoln National Business Capability Map
- type: AgenticAccess
  url: agentic-access/lincoln-national-agentic-access.yml
- type: DomainSecurity
  url: security/lincoln-national-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/lincolnfinancial
- type: Website
  url: https://www.lincolnfinancial.com
- type: LincSmartPlatform
  url: https://www.lincolnfinancial.com/public/static/digitalbrochure/gp/lincsmart/index.html
- type: Portal
  url: https://www.mylincolnportal.com
- type: OpenAPI
  url: https://raw.githubusercontent.com/api-evangelist/lincoln-national/refs/heads/main/openapi/lincoln-national-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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