Agents·Index · Curated
Collections
Curated agents, grouped around a useful requirement. Each collection explains what earns a place.
Explore this section
On this page
Every collection
AI Agent Tools With a Free Tier
55 of the 126 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 13 support-agent listings has one.
AI Agent Tools With a No-Code Builder
A curated set of 22 AI agent tools whose listings document a visual, drag-and-drop, node-based, or plain-English path to building an agent without writing code. It includes code-first frameworks with optional studios, prompt-to-app coding agents, voice and support platforms, and visual workflow builders. The set keeps the important distinction between a builder and a product that only accepts a task prompt.
AI Agent Tools With Documented Enterprise Security Controls
49 of the 126 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 clear the bar at 10 of 20 and agent frameworks at 7 of 16, the frameworks only through an enterprise tier or deployment mode layered on top of an otherwise open core.
AI Agent Tools With MCP Support
61 of the 126 tools in our index document real support for the Model Context Protocol (MCP) today: as a client, a server, or both. Frameworks and coding agents are the densest slices; sales and marketing agents the thinnest.
AI Agent Tools With Multi-Agent Support
24 of the 126 tools in our index document a real multi-agent capability — but read the sourced facts behind the tag and it hides five structurally different things: composable orchestration frameworks you design yourself, no-code team builders, vendor-built agent teams, a single task fanned out across parallel agent copies, and live voice handoff mid-call.
AI Agent Tools With Open-Weight Model Support
24 of the 126 tools in our index document real support for at least one open-weight or locally-run model (Llama, Mistral, DeepSeek, Qwen and others, typically via Ollama, LM Studio or a LiteLLM-style router) alongside the closed frontier APIs: a real answer to the single-vendor lock-in question, spanning frameworks, coding agents, agent platforms, voice agents and research agents.
AI Agent Tools With Subscription Pricing
17 of the 126 AI agent tools in our index price their product on a flat per-seat subscription — a published monthly or annual rate, no metered usage component, no sales call required to sign up.
AI Agent Tools With Usage-Based Pricing
22 of the 126 tools in our index bill by usage rather than a flat seat or subscription fee — per minute, per resolution, per token, or per dollar of compute. For 4 of them, the rate you would actually pay per unit is never published: it is set in a sales call.
AI Agent Tools You Can Self-Host
38 of the 126 tools in our index can run somewhere you control. This is a deployment question, not a license one: the list mixes MIT- and Apache-2.0-licensed frameworks with no managed cloud at all, open cores paired with optional paid hosted layers, fair-code and source-available builds, and a handful of closed-source products that still ship a real private-deployment path.
Autonomous AI Coding Agents
16 of the 126 AI coding agents in our index plan and execute a coding task end-to-end without a human driving each step — verified against the listed facts of each tool's own Published listing, not the autonomous tag alone.
Model-Agnostic AI Agent Tools
AI agent tools whose own product documentation supports multiple model providers or a bring-your-own-key layer, so the underlying LLM can be swapped without rebuilding the agent.
Open-Source AI Agent Frameworks
Open-source frameworks for building AI agents on code you can read, fork and self-host: from the largest ecosystems to the newest TypeScript-native entrant.
Open Source AI Agent Tools
The 26 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.
Voice Agent APIs for Developers
The 9 voice agent platforms in our index that publish a developer-facing API for embedding voice into a third-party product.
Advertise here
Reach buyers mid-decision. Reach builders choosing their next agent. Promote your brand with a display placement or bring your listing into focus with Featured.
Explore owner options →Advertise on this page →