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Catalogue

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Harnesses, frameworks, tools, apps, and platforms for agent builders, each scored on real GitHub credibility and each with a credibility-gated forum.

24 tools

#langchain ×
Tool

LangChainJS

Coding

langchain-ai

TypeScript framework for building LLM apps by chaining models, tools, and integrations behind a standard interface

langchaintypescript-sdktool-callingrag

A+
Framework

NeMo Agent Toolkit

CodingMonitoringQA

NVIDIA

Library for connecting, profiling and optimizing teams of agents across frameworks.

profilingobservabilityevaluationmulti-agent

A+
Tool

Opik

Monitoring

comet-ml

Open-source platform for tracing, evaluating, and monitoring LLM and agentic applications

observabilityevaluationpromptlangchain

A+
Tool

Chainlit

Interface

Chainlit

Python framework for building conversational AI app interfaces, with chat lifecycle hooks, streaming, auth, and data persistence

langchainchatbotstreamingauth

A+
Framework

Deep Agents

CodingMemory

langchain-ai

Opinionated, model-agnostic agent harness on LangGraph with sub-agents, filesystem, and context management built in

langchainmulti-agenttoken-optimizationhuman-in-the-loop

A+
Tool

Headroom

Inference

headroomlabs-ai

Content-aware context-compression layer that reversibly shrinks tool outputs, logs, and history before they reach the LLM

token-optimizationproxyraglangchain

A+
Framework

LangGraph

CodingMemory

langchain-ai

Low-level orchestration framework for long-running stateful agents, with durable execution, interrupts, and persistent memory

langchaindurable-executionhuman-in-the-loopstateful-agents

A
Tool

ScrapeGraphAI

MemoryResearch

ScrapeGraphAI

ScrapeGraphAI is known for pointing an LLM at a web page and getting structured JSON back. Convenient, until you scrape

scrapestructured-outputlangchain

A
Tool

Flowise

CodingInterface

No longer maintained

FlowiseAI

Low-code visual builder for AI agents and LLM workflows, self-hostable or via managed cloud

raglangchainagent-builder

A
Tool

MLflow

Monitoring

mlflow

Open-source platform to trace, evaluate, monitor, and deploy LLM applications, agents, and ML models

observabilityevaluationllmopsmlops

A
Tool

Browser Use

Interface

browser-use

Python library that lets an LLM agent operate a web browser — opening pages, clicking, typing, and filling forms from a task description

browser-automationlangchainplaywright

A
Tool

Langsmith SDK

Coding

langchain-ai

Python and JavaScript SDKs for tracing, evaluating and monitoring LLM apps on the LangSmith platform

observabilityevaluationlangchain

A
Tool

OpenInference

Monitoring

Arize-ai

OpenTelemetry auto-instrumentation that converts agent traces to OpenInference for Arize Phoenix / AX.

telemetryobservabilitylangchainllamaindex

A
Framework

TradingAgents-Astock

CodingResearch

simonlin1212

A-share multi-agent investment research framework — 7 AI analysts, bull/bear debate, risk assessment.

financemulti-agentlangchaina-share

A
Tool

LangChain MCP Adapters

ConnectorsCoding

langchain-ai

Connecting LLMs to external tools is usually a headache—custom integrations, API mismatches, endless maintenance. Model

langchaintool-callingsdk

A
Tool

LLM Graph Builder

MemoryData Wrangling

neo4j-labs

Turns unstructured documents, media, and web pages into a Neo4j knowledge graph using LLMs, with graph-aware chat over the result

knowledge-graphneo4jraglangchain

B
Tool

PandaProbe

CodingMonitoring

chirpz-ai

Open-source platform for tracing, evaluating, and monitoring AI agents, with integrations for LangGraph, CrewAI, and agent SDKs

observabilityevaluationlangchaincrewai

B
Tool

CascadeFlow

InferenceMonitoring

lemony-ai

Cascading runtime for AI agents. Optimize cost, latency, quality, and policy decisions inside the agent loop.

model-cascadingtoken-optimizationgatewaylangchain

B
Tool

LangMem

Memory

langchain-ai

Long-term memory toolkit for agents: hot-path memory tools, background consolidation, and LangGraph store integration

langchainlong-term-memory

B
Tool

AgentOps

CodingMonitoring

AgentOps-AI

Python SDK for AI agent monitoring, LLM cost tracking, benchmarking, and more. Integrates with most LLMs and agent frameworks including CrewAI, Agno, OpenAI Agents SDK, Langchain, Autogen, AG2, and CamelAI.

observabilitytoken-optimizationcrewailangchain

B
Tool

Auth0 for AI Agents (Auth for GenAI)

ConnectorsDeployment

auth0

Auth SDKs for agents: token vault and exchange, CIBA async approvals and fine-grained authorization, with LangChain/LlamaIndex/Vercel AI SDK integrations.

token-vaultoauthauthhuman-in-the-loop

B
Harness

OpenShell DeepAgent

CodingSecurity

langchain-ai

General-purpose coding agent pairing LangChain Deep Agents with an NVIDIA OpenShell sandbox and Nemotron models

langchainsandboxnemotron

C
Tool

Healthy Diet AI Agent

Memory

archie0732

Bun and TypeScript backend for nutrition chat, food-image analysis, and RAG document retrieval

raglangchainknowledge-graphnutrition

C
Tool

Circle Agent Stack

CodingConnectors

circlefin

Wallet and USDC payment tooling agents call (x402-style autonomous payments), with starter kits for LangChain, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK and Google ADK.

financex402usdcstablecoinlangchain

C