# Lessen > Lessen is a Scottsdale, Arizona property services and facilities management technology company connecting commercial and residential property owners and managers with a nationwide network of vetted service providers for repairs, maintenance, turns, make-readies and capital projects. Lessen publishes NO public API, developer portal, API reference or OpenAPI definition. Integrations with partner platforms are private partner connections, not a self-serve API program. Generated by the API Evangelist enrichment pipeline from apis.yml and the artifacts in this repository (https://github.com/api-evangelist/lessen). Method: generated — Lessen serves no /llms.txt of its own (https://www.lessen.com/llms.txt returns 404). ## APIs No public API. Lessen does not operate a developer program, publish API documentation, or distribute API keys through a self-serve channel. Do not assume an endpoint exists; there is nothing to call. ## Platform - [One by Lessen](https://www.lessen.com/one-by-lessen): work-order, vendor-sourcing and invoicing platform - [Lessen 360](https://www.lessen.com/lessen360): multifamily residential maintenance platform - [Lessen 360 Make Ready](https://www.lessen.com/lessen360/make-ready): unit turn and make-ready workflow - [Aiden](https://www.lessen.com/aiden): AI-assisted work-order creation and management - [Lessen Marketplace](https://www.lessen.com/lessen-marketplace): procurement for property materials and services - [Lessen Pro](https://www.lessen.com/lessen-pro): affiliate contractor business platform ## Segments - [Commercial](https://www.lessen.com/commercial): integrated facilities management for retail, financial services, healthcare, food service, industrial, hospitality, telecom and K-12 education - [Residential](https://www.lessen.com/residential): single-family and multifamily property services - [Single Family](https://www.lessen.com/residential/single-family) - [Multifamily](https://www.lessen.com/residential/multifamily) - [For Vendors / Affiliates](https://www.lessen.com/for-vendors): the service provider network ## Integrations Lessen names platform integrations but publishes no technical integration documentation. Captured as listing-only entries in this repository: - [Integrations page](https://www.lessen.com/integration) - [OMNIA Partners](https://www.lessen.com/integrations/omnia-partners) - Named partners: AccuWeather, Assurant, Avalara, Fexa, Google Maps, HappyCo, HireRight, IVueit, OfficeTrax, OMNIA Partners, Property Meld, SeekNow, ServiceChannel, Sibi, Suite Spot, Yardi ## Access - [Client Login (One by Lessen)](https://client-one.smsassist.com/Account/Login) - [Affiliate Login](https://affiliate-one.smsassist.com/Account/Login) - [Lessen Pro Login](https://www.lessenpro.com/login) - [Become a Client](https://www.lessen.com/contact/become-a-client) - [Become a Vendor](https://www.lessen.com/contact/become-a-vendor) ## Operations - [System Status](https://status.lessen.com/): Hyperping-hosted status page (status.lessen.com CNAME status.hyperping.io) - No published API versioning policy, deprecation/sunset policy, SLA or uptime target - No changelog, sandbox, CLI, SDKs, MCP server or webhook catalog ## Security and legal - [Security Policy](https://www.lessen.com/legal/security-policy): security@lessen.com is the reporting address; no formal coordinated disclosure program or bug bounty - [Terms of Use](https://www.lessen.com/legal/terms-of-use) - [Privacy Policy](https://www.lessen.com/legal/privacy-policy) - [California Privacy Policy](https://www.lessen.com/legal/california-privacy-policy) - [Acceptable Use Policy](https://www.lessen.com/legal/acceptable-use-policy) - [All Policies](https://www.lessen.com/policies) - No /.well-known/security.txt, OIDC discovery, or api-catalog document is served on any Lessen host - No published SOC 2, ISO 27001, PCI DSS, HIPAA or FedRAMP certification and no trust center ## Company - [About Lessen](https://www.lessen.com/about-lessen) - [Why Lessen](https://www.lessen.com/why-lessen) - [News and Events](https://www.lessen.com/news-events) - [Careers](https://www.lessen.com/careers) - [Contact](https://www.lessen.com/contact/contact-us) - [Blog](https://www.lessen.com/resource-type/blog) - [Press](https://www.lessen.com/resource-type/press) - Headquarters: 4800 N. Scottsdale Rd., Suite 6500, Scottsdale, AZ 85251; Chicago office: 203 N. LaSalle St., Suite 2200 - Acquired SMS Assist (2023); the One by Lessen client and affiliate logins still run on smsassist.com hosts - Backed by Fifth Wall and General Catalyst ## API Evangelist artifacts - [apis.yml](https://raw.githubusercontent.com/api-evangelist/lessen/refs/heads/main/apis.yml) - integrations/_index.yml — 16 listing-only partner integrations - lifecycle/lessen-lifecycle.yml — status page, no versioning or deprecation policy - security/lessen-domain-security.yml — TLS/HSTS/SPF/DMARC probe results - security/lessen-vulnerability-disclosure.yml — security policy and contact - well-known/lessen-well-known.yml — /.well-known/ probe results (all negative)