Google Pub/Sub Subscription MCP Server for LangChainGive LangChain instant access to 2 tools to Acknowledge Messages and Pull Messages

Name: Google Pub/Sub Subscription
Price: 29 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

LangChain is the leading Python framework for composable LLM applications. Connect Google Pub/Sub Subscription through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

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The Google Pub/Sub Subscription MCP Server for LangChain is a standout in the Industry Titans category — giving your AI agent 2 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

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python

import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "google-pubsub-subscription": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using Google Pub/Sub Subscription, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Google Pub/Sub Subscription MCP Server

This server strips away dangerous global GCP permissions. It gives your AI agent one surgical superpower: the ability to pull tasks and acknowledge completion on one specific Pub/Sub Subscription.

LangChain's ecosystem of 500+ components combines seamlessly with Google Pub/Sub Subscription through native MCP adapters. Connect 2 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.

By strictly scoping access, your AI can safely operate as a highly scalable background worker, processing tasks one by one without ever accessing other subscriptions.

The Superpowers

Absolute Containment: The agent is locked to a single subscription. It cannot peek into other workloads or purge queues.
Native Pub/Sub Integration: Uses standard polling and acknowledgment mechanisms to ensure tasks are processed reliably.
Plug & Play Worker: Instantly turns your AI into an asynchronous background worker capable of chewing through millions of queued tasks.

The Google Pub/Sub Subscription MCP Server exposes 2 tools through the Vinkius. Connect it to LangChain in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 2 Google Pub/Sub Subscription tools available for LangChain

When LangChain connects to Google Pub/Sub Subscription through Vinkius, your AI agent gets direct access to every tool listed below — spanning event-driven, message-queue, asynchronous, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

acknowledge

Acknowledge messages on Google Pub/Sub Subscription

Acknowledge messages to remove them from the Pub/Sub Subscription

pull

Pull messages on Google Pub/Sub Subscription

You MUST acknowledge the messages using their ackIds after you process them, otherwise they will be redelivered. Pull messages from the configured Google Cloud Pub/Sub Subscription

Connect Google Pub/Sub Subscription to LangChain via MCP

Follow these steps to wire Google Pub/Sub Subscription into LangChain. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 2 tools from Google Pub/Sub Subscription via MCP

Why Use LangChain with the Google Pub/Sub Subscription MCP Server

LangChain provides unique advantages when paired with Google Pub/Sub Subscription through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Google Pub/Sub Subscription MCP tools with 500+ LangChain components

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

Memory and conversation persistence let agents maintain context across Google Pub/Sub Subscription queries for multi-turn workflows

Google Pub/Sub Subscription + LangChain Use Cases

Practical scenarios where LangChain combined with the Google Pub/Sub Subscription MCP Server delivers measurable value.

RAG with live data: combine Google Pub/Sub Subscription tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Google Pub/Sub Subscription, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Google Pub/Sub Subscription tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Google Pub/Sub Subscription tool call, measure latency, and optimize your agent's performance

Example Prompts for Google Pub/Sub Subscription in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Google Pub/Sub Subscription immediately.

"Pull the latest 5 messages from the subscription."

"Process the first message payload and write a summary."

"Acknowledge the messages using these IDs: ["ack123", "ack456"]."

Troubleshooting Google Pub/Sub Subscription MCP Server with LangChain

Common issues when connecting Google Pub/Sub Subscription to LangChain through Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Google Pub/Sub Subscription + LangChain FAQ

Common questions about integrating Google Pub/Sub Subscription MCP Server with LangChain.

How does LangChain connect to MCP servers?

Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.

Which LangChain agent types work with MCP?

All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.