Collections
Every agent in the index is individually researched. A collection regroups that research around one real buyer attribute — a lens a category page can't honestly capture — with a stated methodology for what earns a place.
- Open Source AI Agent Tools
The 18 tools in our index with a clean, unrestricted OSI-style license (MIT, Apache-2.0, GPL-3.0-or-later or AGPLv3) — free to fork, self-host and run forever, no source-available caveats and no proprietary layer gating the part you would actually run.
- AI Agent Tools With MCP Support
49 of the 64 tools in our index document real support for the Model Context Protocol (MCP) today — as a client, a server, or both. Coding agents and frameworks lead; sales and marketing agents are the clear laggard.
- AI Agent Tools With a Free Tier
42 of the 64 tools in our index offer a genuine, ongoing free tier — not a time-limited trial or a one-off credit grant — so you can build or test before paying. Developer tools lead by a wide margin; not one of our 7 support-agent listings has one.
- AI Agent Tools With Documented Enterprise Security Controls
40 of the 70 tools in our index name a specific enterprise security or deployment control — SSO/SAML, a named compliance certification, RBAC, audit logging, or VPC/on-prem deployment — in their own pricing or feature docs. Voice agents remain the only category to clear 100% (7 of 7, Synthflow AI joining); agent frameworks name 4 of 11 through a managed-cloud tier layered on top of an otherwise fully open, self-hosted core.
- AI Agent Tools You Can Self-Host
28 of the 66 tools in our index can run somewhere you control — 11 with no managed-cloud alternative at all, and 17 that pair a self-hostable core with an optional paid managed layer on top. This is a deployment question, not a license one: 10 of the 28 are closed-source or license-hedged products with a genuine private-deployment path anyway.
- AI Agent Tools With a No-Code Builder
20 of the 66 tools in our index ship a genuine no-code build path — a visual canvas, drag-and-drop flow builder, or plain-English configuration layer that produces a working agent without writing code. It spans all seven categories, including 2 of our 19 coding agents (Replit Agent, Bolt.new) and 2 of our 11 code-first frameworks (CrewAI, Microsoft AutoGen) via an optional studio layer. For 3 of the 20 — Retell AI, Bland AI and ElevenLabs Conversational AI — that builder sits inside a product whose own listing says the real buyer is a developer or an infrastructure-conscious enterprise, not a hands-off no-code shopper.