Langchain agents

Dead-simple Groq LLM chaining in Python. Chain prompts with .step() — no LangChain needed.

Native LangChain chat models for OpenAI Codex subscription OAuth and OpenCode Zen/Go — no Node sidecar.

Core toolkit for LangGraph.js — provides agent templates, middleware, and utilities not included in @langchain/langgraph

LangChain adapter for cdr-kit — getLangChainTools(agent).

LangChain.js integration for PubMed API - search biomedical literature and retrieve article metadata

LangChain adapter for the Agent2Agent protocol.

Yandex integration for LangChain.js

LangChain integration for cascadeflow - Add intelligent cost optimization to your LangChain models

LangChain.js integrations for Google Cloud SQL for PostgreSQL

AgentCamp SDK — where agents train their own experts. Observe, train, shadow, and activate cheaper expert models behind your existing agents.

Multi-tenant agent memory framework powered by BECOMER — zero tokens, any LLM

Normalize LangChain, MCP, and multimodal content blocks into provider-ready text and image payloads.

Provider-agnostic persuasion guard built with LangChain and LangGraph.

LangChain-based read-only query layer for LightRAG knowledge graph

A pluggable, self-correcting agentic RAG framework with MCP-native retrieval.

LangChain BaseChatModel adapter for @earendil-works/pi-ai — use Pi with any provider, model and auth. Includes a native opencode/Zen chat model (no pi).

Integration package for using LangChain with Supabase

MMCP — Multi-Model Context Protocol. Intelligent AI model routing with MCP server for Claude Desktop & Codex CLI. Auto-routes tasks to Claude, GPT, Gemini, DeepSeek, Llama with RL-based smart routing and cost optimization.

LangGraph JS adapter for Agent IAM

LangGraph adapter for the Angular AI agent UI — provideAgent()/injectAgent() expose a run as Angular Signals.

MCP server that lets Claude, Cursor, LangGraph, and other agents record AI decisions to a tamper-evident ledger.

LangGraph-based decision graph for the CogStream agent. Receives behavioral episodes, runs interpretation, evaluates intervention triggers, builds interventions, and emits AG-UI events.

Cognitive-architecture AI coding agent — stateful LangGraph planner-critic loop, multi-tier memory, causal work graph, local-first routing, GitHub integration, eval harness, and plugin SDK

AAEP integration for LangChain agents via callback handler

Local-first, MCP-native multi-agent platform — job tracker + daily briefing for software engineers, with tracing, evals, and budgets.

LangChain callback adapter for AeroGraph — automatically record LangChain traces.

SparkNotes for your AI agents — log runs to AgentNotes with one pip install and env vars.

Reference Python agent for the LLMOps.Pro sovereign-AI substrate. Consumes the five MCP servers (nwc-mcp, nostr-ops-mcp, marketplace-mcp, albyhub-admin-mcp, paywall-mcp) and demonstrates the agent-pays-paid-MCP loop end-to-end. Ollama-first, API-pluggable. Built on pydantic-ai — no LangChain. MIT.

LangChain and LangGraph observability, local-first: a callback handler that traces chains, graph nodes, LLM calls and tools to a Lookspan dashboard on your own machine.

Stream-optimized, x402-gated grounding retrievers for LangChain and CrewAI

Framework adapters for mosadd. Subpath exports: @mosadd/ai/vercel, @mosadd/ai/langchain, @mosadd/ai/openai, @mosadd/ai/anthropic. Single package, atomic releases (Stripe Agent Toolkit pattern).

MCP server for e2a — email for AI agents

Multi-agent AI system with memory and autonomous capabilities

TypeScript SDK for AgentDrive — cross-agent artifact workspace with provenance, semantic recall, and portable storage.

Production-readiness platform for AI agents — inspect, improve, and stress-test before you ship.

Docker-backed sandbox backend for DeepAgents

LangChain tools for easycome social media data APIs

LangChain integrations for Exabase memory

LangChain integration for the Diffbot Knowledge Graph and Extract APIs

Monty-backed code-interpreter middleware for LangChain agents

LangChain connector for Noxy human-in-the-loop — interrupt/resume with relay outcome polling via noxy-sdk.

LangChain tools for ZeroGPU: A compute-efficient inference provider for apps and agents — purpose-built small and nano language models on an edge network that run the repeatable tasks frontier models shouldn’t, ~10x faster and 50%+ cheaper. Auto-scaling, with zero GPU infrastructure. Plug in and you’re live.

LangGraph connector for Noxy human-in-the-loop.

LangChain tools for Mapsi geospatial APIs — geocoding, routing, isochrone, places

Noosphere Prime SIGMA Tools for LangChain — sovereign risk intelligence for AI agents

LangGraph source connector for OpenWright — capture agent decisions, tools, and human-in-the-loop approvals as evidence.

LangChain JS tools for SIGNA — wallet-signed cross-platform agent messaging on Base. Drop into a LangChain agent in 5 lines and it can send DMs, post to rooms, check on-chain hold-to-chat gates.

Drop-in Tessera integration for LangChain.js. One line of config routes your existing ChatOpenAI / ChatAnthropic / ChatMistralAI / ChatGroq / ChatCohere through Tessera's auto-route + auto-cache + auto-compress + auto-batch proxy.

Runtime governance for autonomous AI agents — per-run tool allowlists, write ceilings, loop detection, step limits, and timeouts. Works with LangGraph, OpenAI Agents SDK, or any TypeScript agent framework.

Web UI for EvoScientist — a self-evolving AI scientist built on DeepAgents/LangGraph.

Dynamic UI runtime for any LangGraph agent: render live, pluggable cards (incl. custom HTML) from agent-emitted UI events.

LangGraph and Hono based orchestration service for EasyInk Assistant

Catch silent failures in your AI agents. TypeScript SDK for Pisama, the failure detector for vibe-coded agents (Cursor, Claude Code, LangGraph, Vercel AI SDK).

A LangGraph-powered gateway for multi-MCP agent workflows.

Entropy-based evaluation metrics for AI agent behavior, tools, trajectories, uncertainty reduction, and robustness.

An integration package connecting Firecrawl and LangChain

LangChain integration for Talor SERP API — 33 search engines in one tool

Deterministic governance middleware for LangChain agents — policy enforcement, cost limits, tool allowlisting, NHI scope controls, and SARIF audit evidence. No LLM in the governance path.

LangChain integration for thalam. — one OpenAI-compatible endpoint for every leading AI model.

LangChain tools wrapping Toolstem MCP servers (Finance + SEC EDGAR) with x402 USDC micropayments

LangGraph tools and integration for Memanto's persistent memory

MemHQ adapter for LangChain — chat message history and retriever backed by MemHQ.

Myrm Agent Harness: Professional Agent framework built on LangChain with advanced skill system and MCP integration

LangChain and LangGraph observability for Tuner SDKs

AACP coordination layer for LangChain multi-agent workflows

Make your AI agents leaner, faster, and cheaper — smart context management and token compression

LangChain integration for AIPP (AI Payment Protocol)

DPX settlement and intelligence tools for LangChain agents — quote, ESG scoring, oracle status, and settlement execution.

Build LangGraph graphs from JSON configuration

An integration package connecting Duel Agents and LangChain

Seven LangChain tools for the FTIR.fun spectroscopy API

LangChain integration for Talor SERP API — 33 search engines in one tool

Managed Deep Agents — the define_deep_agent authoring interface plus the CLI that compiles and deploys a code-first Deep Agent repository to a managed LangGraph runtime.

💧 LangChain tools for Spraay Agent Wallet — provision smart wallets, manage session keys on Base via x402

Zero-code auto-instrumentation for AI agents. Detects and traces LangChain, CrewAI, AutoGen, OpenAI, Anthropic, and raw HTTP calls automatically.

Cross-standard vector DB migration tool — .vmig.jsonl interchange format for agent memory. Import Claude and ChatGPT conversations with LLM fact extraction. Migrate between Pinecone, Qdrant, Chroma, Weaviate, pgvector, Redis, Milvus, Neo4j, VEKTOR. Conver

Celo-first agent payment SDK: x402 + MPP settlement, ERC-8004 identity, and on-chain spending policy via the EnvoyFacilitator. Optional Solana, Stellar, Stripe, DEX/bridge, and unified-wallet modules via subpath imports.

Protocol-agnostic classification, risk tiers, and exact-call policy. Consumable by MCP, A2A, LangGraph, and Vercel AI tool runtimes.

LangChain Retriever adapter for Fetchium — token-efficient AI-native web search

Halo host adapter for LangChain agents and LangGraph graphs (Python): a wrap_tool_call encode middleware plus a halo_fetch navigation tool. install_halo() wires it in one call.

LangChain tools for iwant.fyi -- reference implementation of the iwant.fyi demand-side protocol v1.0. Lets any LangChain agent express structured purchase intent and receive matched supply.

LangChain-compatible Amazon S3 Vectors store for TypeScript

One-line monitoring for LangChain. A BaseCallbackHandler that pings StillRunning on every chain/agent run with duration, tokens, cost, model, and tool-call count.

Pragma Coherence agent skill — verify multi-agent state transitions, gate tool calls, and fetch certs from any LangChain / LangGraph agent in one line.

Self-improving AI agent with memory, skills, MCP, CLI, and TUI

Universal agent server. Wraps any LangGraph graph and exposes it over standard agent protocols — Vercel AI SDK, Claude Code, TUIs, and more.

Run a prompt through a LangChain (system + human) chain over Gemini on Vertex AI; optional LangSmith tracing.

Run a prompt through a LangChain (system + human) chain over Gemini on Vertex AI; optional LangSmith tracing.

Islo (islo.dev) sandbox integration for Deep Agents

LangChain tool and document loader for Lyrenth: read URLs as clean AIDocuments.

Persistent user memory for LangChain and LangGraph agents, backed by MemoryRouter

Language analyser for trivia questions — parse, classify, and score question difficulty

LangChain integration for LatchGate — execution security kernel for AI agents

LangChain (Python) callback handler that adds RANKIGI cryptographic receipts to every LLM, tool, agent, and retriever step.

Standalone, dependency-free rolling conversation memory (summary + buffer), inspired by LangChain's ConversationSummaryBufferMemory.

Sarvam provider support for Langchain

Snowbll MCP Server — Gaming Behaviour Intelligence tools for AI agents (Claude, Cursor, Windsurf, OpenAI Agents SDK, LangChain, CrewAI, AutoGen, Vercel AI SDK).

The only agent execution layer that enforces governance before consequences land. x402-native paid execution, financial control plane, immutable receipts, output verification, EIP-712 portable reputation credentials, escrow settlement, RAG semantic memory

A2A TrustGate CLI — Safety, compliance, and governance for AI agents. Screen every action before it executes.

LangGraph node, model, stream, and tool instrumentation for isplay.