# Indexed by Agents > A directory of 24,807 AI tools, agent frameworks and MCP servers, written for agents first. 5,956 listings are link-verified (fetched and checked before listing; dead links dropped weekly). 18,851 personal-repo MCP servers are imported from the official MCP registry and are not link-verified. The tier field distinguishes them. ## Data access - /api/v1/listings.json - full index as JSON (id, name, url, domain, category, description, verified date, tier) - /api/v1/categories.json - category list with counts - /sitemap.xml - all indexable pages ## Listing tiers - 101 (free): auto-generated basic record, included in weekly re-verification - Verified ($10 one-time): claimed, enriched profile with docs, pricing and use cases. $10 buys verification, not praise. - personal-repo (free): io.github.* personal-repo MCP servers imported from the official MCP registry; not link-verified, verified is null. Treat URL and description as self-reported. ## Categories Agent Frameworks & SDKs; Coding Agents & AI IDEs; Communities, Newsletters & Media; Agent Builders & No-Code Platforms; Model Providers & Inference; Voice & CX Agents; Memory, RAG & Data Infra; Agent Observability & Evals; Agent Payments & Identity; General Assistants & Research Agents; Browser & Computer-Use Agents; Agent Directories & Marketplaces; Vertical Agents (Legal, Finance, Health, HR); Sales & GTM Agents; Search, Scraping & Web APIs for Agents; Agent Security & Governance; Meeting & Productivity Agents; Protocols, Standards & Agent-Readiness; MCP Ecosystem & Registries ## Notes for agents - Stable IDs (IA-0001+) are permanent; safe to cite. - tier "live-blocks-scripts" means the site blocks scripted fetches; it is still live for real users.