Agents

LangChain integration for the Kredo agent attestation protocol

KYA (Know Your Agent) identity verification for LangChain agents

LangChain integration for LightningProx - Pay-per-use AI via Lightning Network micropayments

A LangChain SQL agent for querying Looker via its Open SQL Interface (JDBC/Avatica).

Seamlessly integrate MCP Registry servers into your LangChain workflows

LangChain tools for Mercado Pago payments (CobroYa)

A library for managing multiple LangChain model configurations with validation and automatic agent creation

LangChain tools for MultiMail — give your LangChain agents email capabilities

LangChain tools for Mycelia Signal — cryptographically signed price oracles with automatic x402 (USDC on Base) payment

LangChain tools for x402 payments - let agents pay for APIs autonomously

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

A LangChain agent middleware that provides a plain-text scratchpad/notepad.

LangChain tools for read/write access to Notion via the official API.

The most reliable and cost-effective web search, scraping and crawling API for AI. Build intelligent agents that can search, scrape, analyze, and structure data from any website.

LangChain integration for OneLy x402 marketplace - AI agents can buy and sell APIs

LangChain tools for OneShot — commercial actions for AI agents

Oso observability integration for LangChain agents

LangChain integration for PayLobster - AI agent payment escrow on Base

LangChain integration for Persis - Biological Memory for AI Agents

LangChain provider for Pollinations unified API (OpenAI-compatible chat completions + image endpoint).

POPMiddleware for LangChain agents.

PPIO sandbox integration for Deep Agents

LangChain integration for PraisonAI multi-agent framework

Orchestrate and observe tools built with langchain.