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Build the full agent training loop.
AI Tools Directory

Discover the tools behind real AI build, eval, and deployment workflows.

Browse by role in the stack, not just by vendor. Compare fit here, then open a tool detail page when it earns deeper inspection.

Open My AI StackBrowse Agent Capabilities

Stack layer

Narrow the directory by what the tool does in the workflow.

All Tools467Models886Environment6Action Space411Observation19Reward / Eval10Policy Serving35Training Infra5Safety / Guardrails7Orchestration16

Browse tools

411 results in the directory

Suggest a tool
INFERENCELepton AICOMMERCIAL

Lepton AI

PaidInspect tool
Agent Systems · Memory ManagementLettaFreemium

Letta

Stateful LLM framework (formerly MemGPT)

UnknownInspect tool
Agent FrameworkLetta AIFreemium

Letta AI

Persistent memory for AI agents

Contact / DemoInspect tool
AI Workflow Automation · LLM Benchmarking & Model RoutingLibrettoFreemium

Libretto

LLM testing platform

2 related challengesInspect tool
AI Engineering Tooling · Developer ToolsLightning AIFreemium

Lightning AI

AI training & deployment platform

Freemium / SubscriptionInspect tool
AI Engineering Tooling · Developer ToolsLightski AIFreemium

Lightski

AI auto-documentation generator

Beta / ContactInspect tool
AI Engineering Tooling · Developer ToolsLIMEOpen source

LIME (Explainability)

Explainability

Free (OSS)Inspect tool
AI Workflow Automation · Low-Code PlatformsLindyFreemium

Lindy

AI assistant builder

UnknownInspect tool
Models · Large Language ModelsLingo DevPaid

Lingo

LLM observability & evaluation

1 related challengeInspect tool
AI Engineering Tooling · AI Web Search APIs & ScrapersLinkupFreemium

Linkup

Web search for AI

UnknownInspect tool
Assistants & Interfaces · VoiceLiveKitFreemium

LiveKit

Real-time voice and video infrastructure

1 related challengeInspect tool
Models · Large Language ModelsMetaOpen source

Llama 3.1 405B

LLM

Free (OSS)Inspect tool

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