Langchain agents

A plugin framework for agents, built on LangGraph deepagents + langgraph-cli.

A plugin framework for agents, built on LangGraph deepagents + langgraph-cli.

A typed FastAPI server compatible with LangGraph RemoteGraph clients

Gate LangChain tool calls behind a Fidacy verdict. Wraps the tool itself, so a denied payment never executes: callbacks can only observe, this can stop.

Configurable LangChain agent core for voice applications with pluggable domains, prompts, tools, and RAG documents.

Run LangChain Deep Agents on Flyte.

Run LangChain agents on Flyte.

Run LangGraph agents on Flyte.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.

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.

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.

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.

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.

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.

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.

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

X-ray for LangGraph retrieval: one callback handler captures every retriever call, score, and relational path — rendered as an interactive graph.

Local HWP/HWPX retrieval for Codex and Claude Code over MCP

Inter-agent security firewall for multi-agent AI systems

Give your LangGraph agent a June memory — mirror chat history from any LangGraph checkpointer into a searchable, cited June knowledge canvas. Three commands, no code changes.

LangChain tools for AgenticEmail: give an AI agent its own real email inbox to send, receive, and reply, with optional end-to-end encryption.

LangChain tools for dispatching reality-bound agent work to human operators.

Aidress agent trust and discovery tools for LangChain

LangChain integrations with Apple Foundation Model

LangChain tools for AproxPay residential proxy — x402 pay-per-request and session passes

AxioRank middleware for LangChain agents: govern every tool call and model turn through one Zero-Trust security gateway.

Baponi sandbox provider for LangChain Deep Agents

An integration package connecting Bidda source-verified compliance intelligence to LangChain

Langchain vector store for Apache Cassandra.

LangChain retriever backed by Compact Knowledge Graphs (CKG) — deterministic, SHA-256 anchored, MCP-native

Drop-in ChatAnthropic replacement backed by the Claude Code CLI — use your Claude Pro/Max subscription, no API key needed

Send one controlled Claw Messenger message from LangChain and prove the matching reply in the tool

Langchain vector store for ClickHouse.

LangChain integration for Coalent — use any LangChain VectorStore/retriever, embeddings, and chat model as the substrate of a provenance-invalidated cognitive cache.

LangChain provider for Common Compute — plug Apple-Silicon-powered LLMs and embeddings into your LangChain app.

An integration package connecting CrustAPI (Google search and public LinkedIn data) and LangChain

LangChain tools for the DexPaprika API: keyless DEX market data across every supported blockchain

Reversible distil context compression for LangChain and LangGraph

An integration package connecting DocuWeave and LangChain.

Langchain vector store for Faiss.

Fidacy action firewall for LangChain tool calls. Convention-named entry point: the implementation lives in fidacy-langchain, and this package re-exports it unchanged.

LangChain (and LlamaIndex) tools for the public FLOPS Index — verifiable GPU compute reference prices, no API key required

LangChain tools for FlowSpeech text-to-speech generation.

LangChain integration for Haunt, the web extraction API that returns honest errors instead of invented content

An integration package connecting iLoveVideoEditor and LangChain

inis.run sandbox backend for LangChain Deep Agents, plus a LangGraph recipe

Langchain vector store for LanceDB.

Lightning AI sandbox integration for Deep Agents

Integration package connecting the Live Tennis API and LangChain

LangChain integration for Lumify — load all Lumify sports-intelligence tools (schedules, live scores, odds, betting splits, explainable AI bet confidence) into any LangChain or LangGraph agent via MCP.

Make Anthropic Model Context Protocol (MCP) tools compatible with LangChain and LangGraph agents.

A collection of tools for LangChain Mero.

LangChain integration for Opedd — licensed, rights-cleared content for AI: load your licensed corpus into RAG pipelines and give agents lookup/verify tools with a verifiable license key per article.

Convert OpenAPI specifications into native, production-grade LangChain tools.

LangChain loaders and retrievers for OpenDMA - integrate ECM systems with LangChain

OpenViking integrations for LangChain and LangGraph

LangChain tool for PayPack: AI Agent autonomous payments (HTTP 402, x402, AP2)

PaySafe payment security for LangChain/LangGraph agents: scan x402 payments before settling, auto-tag provenance for prompt-injection detection, guard payment tools so blocked payments can never execute.

An integration package connecting Plivo and LangChain

An integration package connecting PolarDB-X and LangChain

LangChain integration for Preloop — the open-source AI agent control plane (MCP firewall, model gateway, human approvals, budgets, and a tamper-evident audit ledger).

LangChain document loader and tool that read the web through ProxyHat residential proxies — rotation, geo-targeting, sticky sessions.

LangChain tools and a mandatory pre-execution gate for RelayShield's MCP registry risk and prompt-injection breach checks.

LangChain tools for Relm - the CRM for LLMs and AI agents

LangChain tools for ReplyLayer — governed email for AI agents

An integration package connecting Sarvam AI and LangChain

Reversible PII pseudonymization + token compression for LangChain 1.0 — a keyed, DSGVO/BaFin-grade superset of the built-in PIIMiddleware.

LangChain toolkit for the Sendmux email API for AI agents.

LangChain integration for SERPdive, the AI Search API and Tavily alternative: answer-ready web content for agents, same speed, 20.2% fewer tokens, higher answer quality (60.7% of decided duels) on a public benchmark

LangChain VectorStore for MySQL 9's native VECTOR type — works with ShannonBase, self-hosted MySQL, and MySQL HeatWave.

Tabstack tools for LangChain. Schema-enforced web extraction and research, backed by the official Tabstack SDK.

LangChain integration for the Taguru long-term semantic memory server

LangChain integration for the Tunova music generation API (Suno-powered songs for AI agents)

LangChain tools for U.CASH agent monetization over HTTP-402.

LangChain tools for Uniswap V2 pools: swap quotes, liquidity previews, LP balances, and execution plans (approve + action + reset) for swaps and liquidity, ready for an EOA to sign or a smart-contract wallet to batch, across any EVM chain.

LangChain tools for the Unstructured Transform MCP server: parse, enrich, chunk, and embed files for RAG and AI pipelines.

Provider-based visual retrieval for LangChain with PixelRAG support and native geospatial vector retrieval

Official LangChain integration for the WellMarked API — load any URL as clean Markdown.

LangChain document loader for Xberg — extract 88+ file formats into Documents with async, batching, chunking, and rich metadata

It ain't langchain.

Design-time low-code flow builder for the agentplane platform: edit, validate, publish FlowDefinitions.

langgraph-agent-common

DM Database checkpoint and Store persistence for LangGraph.

LangGraph checkpointer backed by inspeximus: durable thread state with queryable value history and receipted erasure.

Library with an OceanBase/MySQL implementation of LangGraph checkpoint saver with Elasticsearch vector search support.

LangGraph checkpoint saver backed by Upstash Redis (REST API)

Declarative YAML workflow definitions for LangGraph — topology as config, logic in Python

Self-hosted LangSmith Deployments alternative: MIT Postgres+Redis runtime (edition=pg) for stock langgraph-api

Section-based flow control middleware for LangGraph React agents

LangGraph BaseStore backed by inspeximus: drop-in for InMemoryStore, plus queryable value history and receipted erasure.

LangGraph BaseStore backed by mnestic — embedded agent memory with atomic batches and one-call BM25+vector hybrid search.