Human Interest

Human Interest is a fintech company providing affordable, full-service 401(k), 403(b), and IRA retirement plans built for small and medium-sized businesses. Founded to close the retirement savings gap, it combines automated plan administration, 600+ payroll integrations, and low-cost index-fund investing. For platforms and partners it publishes a GraphQL API (https://api.humaninterest.com/v1/graphql) that lets them onboard retirement plans end to end, integrate OpenID Connect single sign-on, and subscribe to webhook events, all documented at docs.humaninterest.com. Human Interest maintains a SafeBase trust center with SOC 1, SOC 2 Type 1 & 2, GLBA, and CCPA attestations plus a responsible-disclosure program.

Human Interest publishes 1 API on the APIs.io network. Tagged areas include Company, Fintech, Retirement, 401(k), and Employee Benefits.

The Human Interest catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Human Interest’s developer surface includes documentation, pricing, signup flow, support, engineering blog, authentication, and 15 more developer resources.

🌐 Visit website 📡 Source on GitHub

38.7/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2

AccessSelf serve

1 APIs

Company Fintech Retirement401(k)Employee Benefits Payroll GraphQL

Kin Score

Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2

Composite quality — 38.7/100 · thin

Contract Quality 10.7 / 25

Developer Ergonomics 3.8 / 20

Access Clarity 12.1 / 20

Operational Transparency 2.4 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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 Surface 0 / 5

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/human-interest: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

Lifecycle

Webhooks

Access & Security 6

Authentication, authorization, and security posture

Authentication

Authentication

Compliance

Compliance

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: human-interest
name: Human Interest
description: Human Interest is a fintech company providing affordable, full-service 401(k), 403(b), and IRA retirement plans
  built for small and medium-sized businesses. Founded to close the retirement savings gap, it combines automated plan administration,
  600+ payroll integrations, and low-cost index-fund investing. For platforms and partners it publishes a GraphQL API (https://api.humaninterest.com/v1/graphql)
  that lets them onboard retirement plans end to end, integrate OpenID Connect single sign-on, and subscribe to webhook events,
  all documented at docs.humaninterest.com. Human Interest maintains a SafeBase trust center with SOC 1, SOC 2 Type 1 & 2,
  GLBA, and CCPA attestations plus a responsible-disclosure program.
url: https://raw.githubusercontent.com/api-evangelist/human-interest/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://cdn.builder.io/api/v1/image/assets%2Fe2719c23b0574124be5a7ea31e5b5e3b%2Fc050d2c9eb53497bb95bab1b377daf4a
x-type: company
x-source: vc-portfolio
x-backed-by:
- softbank-vision-fund
- susa-ventures
- sv-angel
- uncork-capital
- wing-venture-capital
- y-combinator
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Fintech
- Retirement
- 401(k)
- Employee Benefits
- Payroll
- GraphQL
tags_raw:
- Company
- Fintech
- Retirement
- 401(k)
- Employee Benefits
- Payroll
- GraphQL
- API
apis:
- name: Human Interest GraphQL API
  description: Partner GraphQL API for onboarding 401(k)/403(b) retirement plans, OpenID Connect single sign-on, and webhook
    event subscriptions.
  humanURL: https://docs.humaninterest.com/
  baseURL: https://api.humaninterest.com/v1/graphql
  properties:
  - type: GraphQL
    url: https://api.humaninterest.com/v1/graphql
  - type: Documentation
    url: https://docs.humaninterest.com/
  - type: APIReference
    url: https://docs.humaninterest.com/docs/getting-started/introduction
  - type: GettingStarted
    url: https://docs.humaninterest.com/docs/getting-started/quickstart
  - type: Authentication
    url: authentication/human-interest-authentication.yml
  - type: Webhooks
    url: asyncapi/human-interest-webhooks.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://humaninterest.com
- type: DeveloperPortal
  url: https://docs.humaninterest.com/
- type: Documentation
  url: https://docs.humaninterest.com/
- type: Pricing
  url: https://humaninterest.com/pricing/
- type: SignUp
  url: https://humaninterest.com/signup
- type: Login
  url: https://app.humaninterest.com
- type: Support
  url: https://humaninterest.com/support
- type: Blog
  url: https://humaninterest.com/blog
- type: TermsOfService
  url: https://humaninterest.com/legal/
- type: PrivacyPolicy
  url: https://humaninterest.com/privacy-policy/
- type: Authentication
  url: authentication/human-interest-authentication.yml
- type: Conventions
  url: conventions/human-interest-conventions.yml
- type: Conformance
  url: conformance/human-interest-conformance.yml
- type: Compliance
  url: https://security.humaninterest.com/
- type: Lifecycle
  url: lifecycle/human-interest-lifecycle.yml
- type: Webhooks
  url: asyncapi/human-interest-webhooks.yml
- type: TrustCenter
  url: security/human-interest-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/human-interest-vulnerability-disclosure.yml
- type: Security
  url: security/human-interest-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/human-interest-domain-security.yml
- type: LLMsTxt
  url: llms/human-interest-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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Human Interest

Kin Score

APIs 1

Human Interest GraphQL API

Event Specifications 1

Human Interest Webhooks

Security Posture 4

Human Interest Authentication

Human Interest Domain Security

Human Interest Vulnerability Disclosure

Human Interest Trust Center

Resources