aid: guideline name: Guideline description: >- Guideline (now offered as "Gusto 401(k) powered by Guideline") is a retirement benefits provider that delivers full-service, low-cost 401(k) and IRA plans to small and mid-sized businesses, tightly integrated with payroll so employee deductions and employer contributions sync automatically. Through its SEC-registered investment adviser subsidiary it offers managed, low-cost index-fund portfolios, recordkeeping, compliance and plan administration. Guideline reports serving 40,000+ businesses and 700,000+ savers with $10B+ in assets under management. It exposes no public developer API; this profile captures its identity, security posture, and machine-readable surfaces (security.txt, llms.txt) for the API Evangelist network. url: https://raw.githubusercontent.com/api-evangelist/guideline/refs/heads/main/apis.yml x-type: company x-source: vc-portfolio x-backed-by: - 500-global - felicis - sv-angel x-tier: stub x-tier-reason: portfolio-lead accessModel: pricing: unknown onboarding: unknown trial: false try_now: false public: false label: Unknown confidence: low source: [] generated: '2026-07-22' method: derived specificationVersion: '0.20' created: '2026-07-17' modified: '2026-07-19' image: https://cms-assets.guideline.com/Sponsor_dash_014e7269b8/public tags: - Company - Retirement - 401(k) - IRA - Financial Services - Fintech - Payroll - Investing - Wealth Management apis: [] maintainers: - FN: Kin Lane email: kin@apievangelist.com - FN: APIs.json email: info@apis.io common: - type: Website url: https://guideline.com - type: Support url: https://help.guideline.com/en - type: Blog url: https://www.guideline.com/education - type: SignUp url: https://my.guideline.com/explore/get-started - type: Login url: https://my.guideline.com/login - type: PrivacyPolicy url: https://my.guideline.com/agreements/privacy - type: TermsOfService url: https://my.guideline.com/agreements/tos - type: GitHubOrganization url: https://github.com/Guideline - type: Security url: https://www.guideline.com/security - type: Compliance url: https://www.guideline.com/security - type: TrustCenter url: security/guideline-trust-center.yml - type: VulnerabilityDisclosure url: security/guideline-vulnerability-disclosure.yml - type: SecurityTxt url: well-known/guideline-security.txt - type: WellKnown url: well-known/guideline-well-known.yml - type: DomainSecurity url: security/guideline-domain-security.yml - type: LLMsTxt url: llms/guideline-llms.txt x-enrichment: date: '2026-07-19' status: backfilled pass: local-v1 note: backfilled from .gitignore signal + verified work evidence