# DeskOS Help Center > Guides and API documentation for DeskOS, the coworking and flex-space management platform. Operators run seats and occupancy, memberships, billing, leads, meeting rooms, visitors and access on it. Every page below is also served as plain markdown at the same address with a ".md" suffix, so it can be read without running JavaScript. The whole site as a single file: https://help.deskos.net/llms-full.txt ## API Documentation - [API Authentication](https://help.deskos.net/docs/api/authentication.md): Every section of the DeskOS API (Service Requests, Meeting Rooms, and the sections that follow) is opened with the same kind of key, created in the same place and sent in the same way. - [Leads Management API](https://help.deskos.net/docs/api/leads-management.md): Welcome to the DeskOS Leads Management Public API. This guide covers everything you need to start pushing leads from external sources (Facebook Lead Ads, Google Ads, website forms, landing pages, and more) directly into... - [Aggregator Partner API](https://help.deskos.net/docs/api/aggregators.md): Welcome to the DeskOS Aggregator Partner API. This guide is for workspace aggregators and marketplaces: platforms that list coworking spaces and sell day passes and meeting-room bookings to their own customers. - [Service Requests API](https://help.deskos.net/docs/api/service-requests.md): This section of the DeskOS API covers service requests (maintenance tickets, facilities issues, member complaints). - [Meeting Rooms API](https://help.deskos.net/docs/api/meeting-rooms.md): This section of the DeskOS API covers meeting rooms: list rooms, check availability, price a slot, book it and cancel it from an outside system such as a tenant's own booking portal, a room display or kiosk, an automatio... - [Members API](https://help.deskos.net/docs/api/members.md): This section of the DeskOS API covers members, companies and membership status. From an outside system such as a WiFi controller, an access-control platform, an HR or CRM tool, n8n or Zapier, or an AI agent you can list... - [Billing API](https://help.deskos.net/docs/api/billing.md): This section of the DeskOS API covers invoices, credit notes and the payments received against them. - [Member Sign-in API](https://help.deskos.net/docs/api/member-auth.md): This section of the DeskOS API lets a tenant that builds its own member app sign members in. Your server proves who the member is (a one-time code, or an email and password) and DeskOS returns a member session. - [Plans, Passes & Credits API](https://help.deskos.net/docs/api/plans.md): This section of the DeskOS API lets an outside system sell to members and manage their meeting room credits: read what is on sale, price it, sell a day pass, a visit pass or a plan, cancel it, and read, add, remove and a... - [Inspections API](https://help.deskos.net/docs/api/inspections.md): This section of the DeskOS API covers inspection rounds, the checks inside them, the failures they found, the people who walked them and the meter readings taken along the way. - [Visitors API](https://help.deskos.net/docs/api/visitors.md): This section of the DeskOS API covers who was invited, who actually turned up, who is in the building right now, and the people on file behind all of it. - [Webhooks](https://help.deskos.net/docs/api/webhooks.md): A webhook is DeskOS calling you. Instead of your system asking "has anything changed?" every few minutes, you give DeskOS an https URL once and we POST a small JSON document to it the moment a member, a company, a member... - [Vendor Onboarding](https://help.deskos.net/docs/api/vendor-onboarding.md): This is the page to send a vendor. It is the whole path from "our customer uses DeskOS" to a working two-way integration, in order, with the decisions already made. ## Guides - [Welcome to DeskOS Guides](https://help.deskos.net/docs/guides/intro.md): DeskOS is an all-in-one coworking management platform built to help you simplify, streamline, and succeed.