"LangChain" matching MCP connectors:

Autonomous HTTP 402 Web Scraping Mesh on Base for $0.02 USDC.

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

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

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

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

Lossless Uniswap V3 historical tick data streams and sandboxed parametric backtesting matrix sweeps on Base Mainnet. Implements the automated Coinbase x402-express stablecoin paywall protocol ($1 streams / $5 archives / $25 matrix simulations). Fully compatible with @coinbase/agentkit and LangChain.

OAuth LangChain OpenAI Agent

Google Sign-In LangChain Agent

Google OAuth LangChain Agent

Encrypted LangChain Token Agent

Traced OpenAI LangChain Agent

LangChain Login and Token Agent

Encrypted LangChain Session Agent

LLM Observability & Orchestration Agent (Langchain)

Structured Output MCP Agent (Langchain Core)

LLM Observability & Orchestration Agent (LangChain Community)

LLM Orchestration Agent (Langchain Openai)

LLM Orchestration Agent (Langchain Core)

LLM Orchestration Agent (Langchain Anthropic)

LLM Orchestration Agent (Langchain)