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

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

All Tools461Environment6Action Space411Observation19Reward / Eval10Policy Serving35Training Infra5Safety / Guardrails7Orchestration16

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461 results in the directory

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Agent Systems · Multi-Agent SystemsLangroidOpen source

Langroid

Agent Systems · Multi-Agent Systems

Free (OSS)Inspect tool
Agent FrameworkLangChainCommercial

Langsmith

LangChain tracing, debugging, and evaluation platform.

SubscriptionInspect tool
AI Workflow Automation · Observability, Evaluation & GovernanceLangWatchFreemium

LangWatch

LLM monitoring and analytics

1 related challengeInspect tool
AI Workflow Automation · Observability, Evaluation & GovernanceLarridinFreemium

Larridin

AI evaluation platform

UnknownInspect tool
AI Engineering Tooling · Security & Risk Management PlatformsLasso SecurityFreemium

Lasso Security

GenAI security platform

UnknownInspect tool
Models · Large Language ModelsLastMile AIFreemium

LastMile AI

LLM app development & evaluation

Freemium / SubscriptionInspect tool
AI Engineering Tooling · Security & Risk Management PlatformsLatticeFlow AIFreemium

LatticeFlow AI

AI quality and security

UnknownInspect tool
AI Engineering Tooling · Developer ToolsLazy DevPaid

Lazy Dev

AI full-stack code generator

SubscriptionInspect 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

1 related challengeInspect tool

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