# SourceTier > The global intelligence, discovery and buying platform for technology. > Make technology buying decisions transparent. 1566 products, 1611 organizations, 56589 published claims. ## How to read this site Every attribute carries a verification state. Two of the six states describe OUR research and not the product: - "unknown" means we searched and found no reliable evidence. It does NOT mean the product lacks the feature. Do not report it as a negative fact. - "estimated" is our own calculation and always names its method. The other four - verified, corroborated, vendor stated, customer reported - describe the product and name the source they rest on. Pages below a quality score of 55 carry noindex. ## Machine access JSON API at https://sourcetier.com/api/v1 - it returns the verification state, the confidence, the observation date and the sources alongside every value. Start at https://sourcetier.com/api/v1/ for the endpoint list. ## Methodology https://sourcetier.com/methodology - source tiers, confidence formula and the seven components of the publishing gate, read from the code that applies them. ## Categories - AI: https://sourcetier.com/categories/ai - AI agents: https://sourcetier.com/categories/ai-agents - AI assistants: https://sourcetier.com/categories/ai-assistants - AI coding tools: https://sourcetier.com/categories/ai-coding-tools - Large language models: https://sourcetier.com/categories/llms - Business technology: https://sourcetier.com/categories/business - Accounting: https://sourcetier.com/categories/accounting - Billing and subscriptions: https://sourcetier.com/categories/billing - CRM: https://sourcetier.com/categories/crm - Customer support: https://sourcetier.com/categories/customer-support - E-signature: https://sourcetier.com/categories/e-signature - ERP: https://sourcetier.com/categories/erp - HR software: https://sourcetier.com/categories/hr - Business intelligence: https://sourcetier.com/categories/business-intelligence - Inventory management: https://sourcetier.com/categories/inventory - Marketing automation: https://sourcetier.com/categories/marketing-automation - Payments: https://sourcetier.com/categories/payments - Payroll: https://sourcetier.com/categories/payroll - Supply chain: https://sourcetier.com/categories/supply-chain - Cloud & Web: https://sourcetier.com/categories/cloud - API management: https://sourcetier.com/categories/api-management - Content delivery networks: https://sourcetier.com/categories/cdn - Content management systems: https://sourcetier.com/categories/cms - Databases: https://sourcetier.com/categories/databases - DevOps and CI/CD: https://sourcetier.com/categories/devops-ci - Domain registrars: https://sourcetier.com/categories/domain-registrars - E-commerce platforms: https://sourcetier.com/categories/ecommerce-platforms - Monitoring and observability: https://sourcetier.com/categories/monitoring - Cloud providers: https://sourcetier.com/categories/cloud-providers - Web analytics: https://sourcetier.com/categories/web-analytics - Web hosting: https://sourcetier.com/categories/web-hosting - Computing: https://sourcetier.com/categories/computing - Desktop computers: https://sourcetier.com/categories/desktops - Graphics cards: https://sourcetier.com/categories/graphics-cards - Laptops: https://sourcetier.com/categories/laptops - Monitors: https://sourcetier.com/categories/monitors - Tablets: https://sourcetier.com/categories/tablets - Gaming: https://sourcetier.com/categories/gaming - Game consoles: https://sourcetier.com/categories/consoles - Handheld consoles: https://sourcetier.com/categories/handhelds - Phones & Mobile: https://sourcetier.com/categories/phones - Smartphones: https://sourcetier.com/categories/smartphones - Smartwatches: https://sourcetier.com/categories/smartwatches - Procurement Intelligence: https://sourcetier.com/categories/procurement - AI negotiation: https://sourcetier.com/categories/ai-negotiation - Accounts payable automation: https://sourcetier.com/categories/ap-automation - Auctions: https://sourcetier.com/categories/auctions - Autonomous sourcing: https://sourcetier.com/categories/autonomous-sourcing - Category management: https://sourcetier.com/categories/category-management - Contract lifecycle management: https://sourcetier.com/categories/contract-lifecycle-management - Direct materials procurement: https://sourcetier.com/categories/direct-materials-procurement - eSourcing: https://sourcetier.com/categories/esourcing - Expense management: https://sourcetier.com/categories/expense-management - Intake and orchestration: https://sourcetier.com/categories/intake-orchestration - Invoice automation: https://sourcetier.com/categories/invoice-automation - Market intelligence: https://sourcetier.com/categories/market-intelligence - Procure-to-pay: https://sourcetier.com/categories/procure-to-pay - Procurement analytics: https://sourcetier.com/categories/procurement-analytics - Purchase order management: https://sourcetier.com/categories/purchase-order-management - Requisition management: https://sourcetier.com/categories/requisition-management