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
30.7/100 thin Agent 15/100 agent aware Full breakdown ↓
scored 2026-07-20 · rubric v0.4
1 APIs 0 Features
CompanyFintechRetirement401(k)Employee BenefitsPayrollGraphQLAPI

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4
Composite quality — 30.7/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 7.0 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 2.4 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 15/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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

Human Interest GraphQL API

Partner GraphQL API for onboarding 401(k)/403(b) retirement plans, OpenID Connect single sign-on, and webhook event subscriptions.

Event Specifications

Human Interest Webhooks

ASYNCAPI

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 SignUp
SignUp
 Login
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
Conventions
 Conformance
Conformance
 Lifecycle
Lifecycle
 Webhooks
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)

apis.yml Raw ↑ 
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
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: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- 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