# How to integrate Google Maps MCP with LangChain ```json { "title": "How to integrate Google Maps MCP with LangChain", "toolkit": "Google Maps", "toolkit_slug": "google_maps", "framework": "LangChain", "framework_slug": "langchain", "url": "https://composio.dev/toolkits/google_maps/framework/langchain", "markdown_url": "https://composio.dev/toolkits/google_maps/framework/langchain.md", "updated_at": "2026-05-12T10:13:42.826Z" } ``` ## Introduction This guide walks you through connecting Google Maps to LangChain using the Composio tool router. By the end, you'll have a working Google Maps agent that can find walking directions from your hotel to conference center, show top-rated coffee shops near your location, embed a map of downtown restaurants on your website through natural language commands. This guide will help you understand how to give your LangChain agent real control over a Google Maps account through Composio's Google Maps MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved. ## Also integrate Google Maps with - [ChatGPT](https://composio.dev/toolkits/google_maps/framework/chatgpt) - [OpenAI Agents SDK](https://composio.dev/toolkits/google_maps/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/google_maps/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/google_maps/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/google_maps/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/google_maps/framework/codex) - [Cursor](https://composio.dev/toolkits/google_maps/framework/cursor) - [VS Code](https://composio.dev/toolkits/google_maps/framework/vscode) - [OpenCode](https://composio.dev/toolkits/google_maps/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/google_maps/framework/openclaw) - [Hermes](https://composio.dev/toolkits/google_maps/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/google_maps/framework/cli) - [Google ADK](https://composio.dev/toolkits/google_maps/framework/google-adk) - [Vercel AI SDK](https://composio.dev/toolkits/google_maps/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/google_maps/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/google_maps/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/google_maps/framework/crew-ai) ## TL;DR Here's what you'll learn: - Get and set up your OpenAI and Composio API keys - Connect your Google Maps project to Composio - Create a Tool Router MCP session for Google Maps - Initialize an MCP client and retrieve Google Maps tools - Build a LangChain agent that can interact with Google Maps - Set up an interactive chat interface for testing ## What is LangChain? LangChain is a framework for developing applications powered by language models. It provides tools and abstractions for building agents that can reason, use tools, and maintain conversation context. Key features include: - Agent Framework: Build agents that can use tools and make decisions - MCP Integration: Connect to external services through Model Context Protocol adapters - Memory Management: Maintain conversation history across interactions - Multi-Provider Support: Works with OpenAI, Anthropic, and other LLM providers ## What is the Google Maps MCP server, and what's possible with it? The Google maps MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Google Maps account. It provides structured and secure access to advanced location, routing, and place data, so your agent can perform actions like finding places, calculating routes, searching nearby locations, and generating map embeds on your behalf. - Instant directions and route planning: Let your agent fetch detailed step-by-step directions or calculate optimal routes between addresses, including support for waypoints and various travel modes. - Proximity-based place search: Effortlessly search for restaurants, parks, or other place types within a specific area, filtered by your preferences and needs. - Distance and travel time calculations: Have your agent determine travel distance and estimated time between multiple origins and destinations, factoring in real-world conditions and transport modes. - Text-based place discovery: Ask your agent to locate places using natural language queries like “coffee shops near Central Park” or “best hotels in Tokyo.” - Interactive map embedding: Generate embeddable map URLs and HTML code to display custom maps, directions, or street views directly in your apps or websites—no manual coding required. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `GOOGLE_MAPS_AUTOCOMPLETE` | Autocomplete Place Predictions | Returns place and query predictions for text input. Use when implementing as-you-type autocomplete functionality for place searches. Returns up to five predictions ordered by relevance. | | `GOOGLE_MAPS_COMPUTE_ROUTE_MATRIX` | Compute Route Matrix | Calculates travel distance and duration matrix between multiple origins and destinations using the modern Routes API; supports OAuth2 authentication and various travel modes. Matrix is capped at 625 elements (e.g., 25×25); chunk larger sets to avoid RESOURCE_EXHAUSTED errors. Response elements may be returned out of input order — always use originIndex and destinationIndex to map results. Only use elements where condition='ROUTE_EXISTS'; the matrix may be incomplete. | | `GOOGLE_MAPS_GEOCODE_ADDRESS_WITH_QUERY` | Geocode Address With Query | Tool to map addresses to geographic coordinates with query parameter. Use when you need to convert a textual address into latitude/longitude coordinates using the modern v4beta API. Results may match multiple places — always verify `formattedAddress`, `region`, and `addressComponents` in the response before using returned coordinates. | | `GOOGLE_MAPS_GEOCODE_DESTINATIONS` | Geocode Destinations | Tool to perform destination lookup and return detailed destination information including primary place, containing places, sub-destinations, landmarks, entrances, and navigation points. Use when you need comprehensive destination data for an address, place ID, or geographic coordinates. | | `GOOGLE_MAPS_GEOCODE_LOCATION` | Reverse Geocode Location | Tool to convert geographic coordinates (latitude and longitude) to human-readable addresses using reverse geocoding. Use when you need to find the address or place name for a given set of coordinates. A single coordinate pair may return multiple results; verify formattedAddress, region, and addressComponents before committing to a result. | | `GOOGLE_MAPS_GEOCODE_PLACE` | Geocode Place by ID | Tool to perform geocode lookup using a place identifier to retrieve address and coordinates. Use when you need to get detailed geographic information for a specific Google Place ID. | | `GOOGLE_MAPS_GEOCODING_API` | Geocoding API | Convert addresses into geographic coordinates (latitude and longitude) and vice versa (reverse geocoding), or get an address for a Place ID. Uses the Geocoding API v4 (v4beta) which supports OAuth2 authentication. Exactly one of `address`, `latlng`, or `place_id` must be provided per request; omitting all three or mixing incompatible combinations yields no useful results. | | `GOOGLE_MAPS_GEOLOCATE` | Geolocate Device | Tool to determine location based on cell towers and WiFi access points. Use when you need to find the geographic location of a device using network infrastructure data. | | `GOOGLE_MAPS_GET2D_TILE` | Get 2D Map Tile | Tool to retrieve a 2D map tile image at specified coordinates for building custom map visualizations. Use when you need to download individual map tile images for roadmap, satellite, or terrain views. Requires a valid session token from the createSession endpoint. | | `GOOGLE_MAPS_GET3D_TILES_ROOT` | Get 3D Tiles Root | Tool to retrieve the 3D Tiles tileset root configuration for photorealistic 3D map rendering. Use when you need to initialize a 3D renderer with Google's photorealistic tiles following the OGC 3D Tiles specification. The Map Tiles API is billable per request; cache the root response client-side and avoid repeated calls. | | `GOOGLE_MAPS_GET_PLACE_DETAILS` | Get Place Details | Retrieves comprehensive details for a place using its resource name (places/{place_id} format). Use when you need detailed information about a specific place. | | `GOOGLE_MAPS_GET_ROUTE` | Get Route | Calculates one or more routes between two specified locations. Uses various travel modes and preferences; addresses must be resolvable by Google Maps. Response `duration` is a string with 's' suffix (e.g., `"4557s"`); parse before displaying. | | `GOOGLE_MAPS_LOOKUP_AERIAL_VIDEO` | Lookup Aerial Video | Tool to look up an aerial view video by address or video ID. Returns video metadata including state and URIs for playback. Use when you need to retrieve a previously rendered aerial video or check the status of a video render request. Note that receiving a video is a billable event. | | `GOOGLE_MAPS_MAPS_EMBED_API` | Embed Google Map | Tool to generate an embeddable Google Map URL and HTML iframe code. Use when you need to display a map (place, view, directions, street view, search) on a webpage without JavaScript. Note: This API only works with API keys (no OAuth2 support). It generates embed URLs and does not make direct API calls. Generated embed URLs are publicly accessible; avoid passing sensitive or internal location queries. | | `GOOGLE_MAPS_NEARBY_SEARCH` | Nearby search | Searches for places (e.g., restaurants, parks) within a specified circular area, with options to filter by place types and customize the returned fields and number of results. | | `GOOGLE_MAPS_PLACE_PHOTO` | Get Place Photo | Retrieves high quality photographic content from the Google Maps Places database. Use when you need to download a place photo using a photo_reference obtained from Place Details, Nearby Search, or Text Search requests. Images are scaled proportionally to fit within specified dimensions. | | `GOOGLE_MAPS_RENDER_AERIAL_VIDEO` | Render Aerial Video | Starts rendering an aerial view video for a US postal address. Returns a video ID that can be used with lookupVideo to retrieve the video once rendering completes. Rendering typically takes up to a few hours. | | `GOOGLE_MAPS_TEXT_SEARCH` | Text Search | Searches for places on Google Maps using a textual query (e.g., "restaurants in London", "Eiffel Tower"). Results may include CLOSED_PERMANENTLY or TEMPORARILY_CLOSED places — filter by businessStatus=OPERATIONAL. Include city/region and business type in textQuery to avoid empty or irrelevant results. Deduplicate using id or formattedAddress, not name alone. Throttle to ~1 req/s; OVER_QUERY_LIMIT (HTTP 429) requires exponential backoff. | | `GOOGLE_MAPS_TILES_CREATE_SESSION` | Create Tiles Session | Tool to create a session token required for accessing 2D Tiles and Street View imagery. Use when you need to initialize tile-based map rendering or street view display. The session token is valid for approximately two weeks and must be included in all subsequent tile requests. Each call consumes quota — cache and reuse the returned token across all tile requests within its validity window rather than creating a new session per request. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Google Maps MCP server is an implementation of the Model Context Protocol that connects your AI agent to Google Maps. It provides structured and secure access so your agent can perform Google Maps operations on your behalf through a secure, permission-based interface. With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster. ## Step-by-step Guide ### 1. Prerequisites No description provided. ### 1. Getting API Keys for OpenAI and Composio OpenAI API Key - Go to the [OpenAI dashboard](https://platform.openai.com/settings/organization/api-keys) and create an API key. You'll need credits to use the models, or you can connect to another model provider. - Keep the API key safe. Composio API Key - Log in to the [Composio dashboard](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs). - Navigate to your API settings and generate a new API key. - Store this key securely as you'll need it for authentication. ### 2. Install dependencies No description provided. ```python pip install composio-langchain langchain-mcp-adapters langchain python-dotenv ``` ```typescript npm install @composio/langchain @langchain/core @langchain/openai @langchain/mcp-adapters dotenv ``` ### 3. Set up environment variables Create a .env file in your project root. What's happening: - COMPOSIO_API_KEY authenticates your requests to Composio's API - COMPOSIO_USER_ID identifies the user for session management - OPENAI_API_KEY enables access to OpenAI's language models ```bash COMPOSIO_API_KEY=your_composio_api_key_here COMPOSIO_USER_ID=your_composio_user_id_here OPENAI_API_KEY=your_openai_api_key_here ``` ### 4. Import dependencies No description provided. ```python from langchain_mcp_adapters.client import MultiServerMCPClient from langchain.agents import create_agent from dotenv import load_dotenv from composio import Composio import asyncio import os load_dotenv() ``` ```typescript import { Composio } from '@composio/core'; import { LangchainProvider } from '@composio/langchain'; import { MultiServerMCPClient } from "@langchain/mcp-adapters"; import { createAgent } from "langchain"; import * as readline from 'readline'; import 'dotenv/config'; dotenv.config(); ``` ### 5. Initialize Composio client What's happening: - We're loading the COMPOSIO_API_KEY from environment variables and validating it exists - Creating a Composio instance that will manage our connection to Google Maps tools - Validating that COMPOSIO_USER_ID is also set before proceeding ```python async def main(): composio = Composio(api_key=os.getenv("COMPOSIO_API_KEY")) if not os.getenv("COMPOSIO_API_KEY"): raise ValueError("COMPOSIO_API_KEY is not set") if not os.getenv("COMPOSIO_USER_ID"): raise ValueError("COMPOSIO_USER_ID is not set") ``` ```typescript const composioApiKey = process.env.COMPOSIO_API_KEY; const userId = process.env.COMPOSIO_USER_ID; if (!composioApiKey) throw new Error('COMPOSIO_API_KEY is not set'); if (!userId) throw new Error('COMPOSIO_USER_ID is not set'); async function main() { const composio = new Composio({ apiKey: composioApiKey as string, provider: new LangchainProvider() }); ``` ### 6. Create a Tool Router session What's happening: - We're creating a Tool Router session that gives your agent access to Google Maps tools - The create method takes the user ID and specifies which toolkits should be available - The returned session.mcp.url is the MCP server URL that your agent will use - This approach allows the agent to dynamically load and use Google Maps tools as needed ```python # Create Tool Router session for Google Maps session = composio.create( user_id=os.getenv("COMPOSIO_USER_ID"), toolkits=['google_maps'] ) url = session.mcp.url ``` ```typescript const session = await composio.create( userId as string, { toolkits: ['google_maps'] } ); const url = session.mcp.url; ``` ### 7. Configure the agent with the MCP URL No description provided. ```python client = MultiServerMCPClient({ "google_maps-agent": { "transport": "streamable_http", "url": session.mcp.url, "headers": { "x-api-key": os.getenv("COMPOSIO_API_KEY") } } }) tools = await client.get_tools() agent = create_agent("gpt-5", tools) ``` ```typescript const client = new MultiServerMCPClient({ "google_maps-agent": { transport: "http", url: url, headers: { "x-api-key": process.env.COMPOSIO_API_KEY } } }); const tools = await client.getTools(); const agent = createAgent({ model: "gpt-5", tools }); ``` ### 8. Set up interactive chat interface No description provided. ```python conversation_history = [] print("Chat started! Type 'exit' or 'quit' to end the conversation.\n") print("Ask any Google Maps related question or task to the agent.\n") while True: user_input = input("You: ").strip() if user_input.lower() in ['exit', 'quit', 'bye']: print("\nGoodbye!") break if not user_input: continue conversation_history.append({"role": "user", "content": user_input}) print("\nAgent is thinking...\n") response = await agent.ainvoke({"messages": conversation_history}) conversation_history = response['messages'] final_response = response['messages'][-1].content print(f"Agent: {final_response}\n") ``` ```typescript let conversationHistory: any[] = []; console.log("Chat started! Type 'exit' or 'quit' to end the conversation.\n"); console.log("Ask any Google Maps related question or task to the agent.\n"); const rl = readline.createInterface({ input: process.stdin, output: process.stdout, prompt: 'You: ' }); rl.prompt(); rl.on('line', async (userInput: string) => { const trimmedInput = userInput.trim(); if (['exit', 'quit', 'bye'].includes(trimmedInput.toLowerCase())) { console.log("\nGoodbye!"); rl.close(); process.exit(0); } if (!trimmedInput) { rl.prompt(); return; } conversationHistory.push({ role: "user", content: trimmedInput }); console.log("\nAgent is thinking...\n"); const response = await agent.invoke({ messages: conversationHistory }); conversationHistory = response.messages; const finalResponse = response.messages[response.messages.length - 1]?.content; console.log(`Agent: ${finalResponse}\n`); rl.prompt(); }); rl.on('close', () => { console.log('\n👋 Session ended.'); process.exit(0); }); ``` ### 9. Run the application No description provided. ```python if __name__ == "__main__": asyncio.run(main()) ``` ```typescript main().catch((err) => { console.error('Fatal error:', err); process.exit(1); }); ``` ## Complete Code ```python from langchain_mcp_adapters.client import MultiServerMCPClient from langchain.agents import create_agent from dotenv import load_dotenv from composio import Composio import asyncio import os load_dotenv() async def main(): composio = Composio(api_key=os.getenv("COMPOSIO_API_KEY")) if not os.getenv("COMPOSIO_API_KEY"): raise ValueError("COMPOSIO_API_KEY is not set") if not os.getenv("COMPOSIO_USER_ID"): raise ValueError("COMPOSIO_USER_ID is not set") session = composio.create( user_id=os.getenv("COMPOSIO_USER_ID"), toolkits=['google_maps'] ) url = session.mcp.url client = MultiServerMCPClient({ "google_maps-agent": { "transport": "streamable_http", "url": url, "headers": { "x-api-key": os.getenv("COMPOSIO_API_KEY") } } }) tools = await client.get_tools() agent = create_agent("gpt-5", tools) conversation_history = [] print("Chat started! Type 'exit' or 'quit' to end the conversation.\n") print("Ask any Google Maps related question or task to the agent.\n") while True: user_input = input("You: ").strip() if user_input.lower() in ['exit', 'quit', 'bye']: print("\nGoodbye!") break if not user_input: continue conversation_history.append({"role": "user", "content": user_input}) print("\nAgent is thinking...\n") response = await agent.ainvoke({"messages": conversation_history}) conversation_history = response['messages'] final_response = response['messages'][-1].content print(f"Agent: {final_response}\n") if __name__ == "__main__": asyncio.run(main()) ``` ```typescript import { Composio } from '@composio/core'; import { LangchainProvider } from '@composio/langchain'; import { MultiServerMCPClient } from "@langchain/mcp-adapters"; import { createAgent } from "langchain"; import * as readline from 'readline'; import 'dotenv/config'; const composioApiKey = process.env.COMPOSIO_API_KEY; const userId = process.env.COMPOSIO_USER_ID; if (!composioApiKey) throw new Error('COMPOSIO_API_KEY is not set'); if (!userId) throw new Error('COMPOSIO_USER_ID is not set'); async function main() { const composio = new Composio({ apiKey: composioApiKey as string, provider: new LangchainProvider() }); const session = await composio.create( userId as string, { toolkits: ['google_maps'] } ); const url = session.mcp.url; const client = new MultiServerMCPClient({ "google_maps-agent": { transport: "http", url: url, headers: { "x-api-key": process.env.COMPOSIO_API_KEY } } }); const tools = await client.getTools(); const agent = createAgent({ model: "gpt-5", tools }); let conversationHistory: any[] = []; console.log("Chat started! Type 'exit' or 'quit' to end the conversation.\n"); console.log("Ask any Google Maps related question or task to the agent.\n"); const rl = readline.createInterface({ input: process.stdin, output: process.stdout, prompt: 'You: ' }); rl.prompt(); rl.on('line', async (userInput: string) => { const trimmedInput = userInput.trim(); if (['exit', 'quit', 'bye'].includes(trimmedInput.toLowerCase())) { console.log("\nGoodbye!"); rl.close(); process.exit(0); } if (!trimmedInput) { rl.prompt(); return; } conversationHistory.push({ role: "user", content: trimmedInput }); console.log("\nAgent is thinking...\n"); const response = await agent.invoke({ messages: conversationHistory }); conversationHistory = response.messages; const finalResponse = response.messages[response.messages.length - 1]?.content; console.log(`Agent: ${finalResponse}\n`); rl.prompt(); }); rl.on('close', () => { console.log('\nSession ended.'); process.exit(0); }); } main().catch((err) => { console.error('Fatal error:', err); process.exit(1); }); ``` ## Conclusion You've successfully built a LangChain agent that can interact with Google Maps through Composio's Tool Router. Key features of this implementation: - Dynamic tool loading through Composio's Tool Router - Conversation history maintenance for context-aware responses - Async Python provides clean, efficient execution of agent workflows You can extend this further by adding error handling, implementing specific business logic, or integrating additional Composio toolkits to create multi-app workflows. ## How to build Google Maps MCP Agent with another framework - [ChatGPT](https://composio.dev/toolkits/google_maps/framework/chatgpt) - [OpenAI Agents SDK](https://composio.dev/toolkits/google_maps/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/google_maps/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/google_maps/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/google_maps/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/google_maps/framework/codex) - [Cursor](https://composio.dev/toolkits/google_maps/framework/cursor) - [VS Code](https://composio.dev/toolkits/google_maps/framework/vscode) - [OpenCode](https://composio.dev/toolkits/google_maps/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/google_maps/framework/openclaw) - [Hermes](https://composio.dev/toolkits/google_maps/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/google_maps/framework/cli) - [Google ADK](https://composio.dev/toolkits/google_maps/framework/google-adk) - [Vercel AI SDK](https://composio.dev/toolkits/google_maps/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/google_maps/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/google_maps/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/google_maps/framework/crew-ai) ## Related Toolkits - [Excel](https://composio.dev/toolkits/excel) - Microsoft Excel is a robust spreadsheet application for organizing, analyzing, and visualizing data. 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It helps streamline how you gather, organize, and analyze responses. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Google Maps MCP? With a standalone Google Maps MCP server, the agents and LLMs can only access a fixed set of Google Maps tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Google Maps and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with LangChain? Yes, you can. LangChain fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Google Maps tools. ### Can I manage the permissions and scopes for Google Maps while using Tool Router? Yes, absolutely. You can configure which Google Maps scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do. ### How safe is my data with Composio Tool Router? All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Google Maps data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)