How to integrate Here MCP with Google ADK

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Introduction

This guide walks you through connecting Here to Google ADK using the Composio tool router. By the end, you'll have a working Here agent that can find coffee shops near central park, get driving route for delivery truck, convert address to latitude and longitude through natural language commands.

This guide will help you understand how to give your Google ADK agent real control over a Here account through Composio's Here MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Here with

TL;DR

Here's what you'll learn:
  • Get a Here account set up and connected to Composio
  • Install the Google ADK and Composio packages
  • Create a Composio Tool Router session for Here
  • Build an agent that connects to Here through MCP
  • Interact with Here using natural language

What is Google ADK?

Google ADK (Agents Development Kit) is Google's framework for building AI agents powered by Gemini models. It provides tools for creating agents that can use external services through the Model Context Protocol.

Key features include:

  • Gemini Integration: Native support for Google's Gemini models
  • MCP Toolset: Built-in support for Model Context Protocol tools
  • Streamable HTTP: Connect to external services through streamable HTTP
  • CLI and Web UI: Run agents via command line or web interface

What is the Here MCP server, and what's possible with it?

The Here MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Here account. It provides structured and secure access to powerful location, mapping, and geocoding services, so your agent can perform actions like searching places, calculating routes, fetching map imagery, and converting addresses or coordinates on your behalf.

  • Smart place discovery and suggestions: Ask your agent to find points of interest, get autosuggested places based on partial queries, or discover addresses near a location.
  • Geocoding and reverse geocoding: Convert addresses to geographic coordinates or vice versa, enabling seamless location lookup and mapping in your workflows.
  • Map tile and imagery retrieval: Direct your agent to fetch satellite, base, or hybrid map tiles for specific locations, zoom levels, and formats for rich visual context.
  • Advanced routing and fleet planning: Have your agent calculate optimized routes with vehicle profiles, constraints, and even isolines for reachable areas based on time or distance.
  • Nearby search and contextual browsing: Let your agent browse or search for places around a given location, filtered by categories or names, to surface relevant local information.

Supported Tools & Triggers

Tools
Autosuggest PlacesTool to fetch possible completions for a partial search term.
Browse PlacesTool to search for places around a given location with optional filters.
Calculate Fleet Telematics RouteCalculate optimal routes between multiple waypoints supporting various transport modes (car, truck, bicycle, pedestrian).
Cancel Tour Planning ProblemTool to cancel a running asynchronous tour planning optimization job.
Coordinates to Tile IndicesTool to convert geographic coordinates to Web Mercator XYZ tile indices.
Decode Route HandleTool to decode and return a route from a previously calculated route handle via POST request.
Discover PlacesTool to discover places and addresses by free-form text near a location.
Solve Vehicle Routing ProblemTool to solve a Vehicle Routing Problem (VRP) by optimizing routes for a fleet of vehicles serving multiple jobs.
Find Optimal Waypoint SequenceTool to find the optimal sequence of waypoints using POST request to solve the Travelling Salesman Problem.
Geocode AddressTool to convert structured address data into geographic coordinates.
Get Aliases Service HealthTool to check the health status of the HERE Tracking aliases service.
Get Aliases Service VersionTool to get the current version of the HERE Tracking Aliases service.
Get Associations Service HealthTool to check the health status of the HERE Tracking Associations API service.
Get Associations Service VersionTool to retrieve the current version of the HERE Associations tracking service.
Get Address AutocompleteTool to get address autocomplete suggestions for partial address queries.
Get Base Map TileRetrieves a base map tile image from HERE Raster Tile API v3.
Get Bulkjobs Service HealthTool to check the health status of the HERE Tracking bulkjobs service.
Get Bulkjobs Service VersionTool to retrieve the current version of the HERE Bulkjobs tracking service.
Get C2C Service HealthTool to check HERE C2C service health status.
Get C2C Service VersionTool to get the current version of the HERE C2C tracking service.
Get CopyrightTool to retrieve copyright information for HERE map tiles.
Get Transit DeparturesTool to get next departures from transit stations.
Get Events Health StatusTool to check the health status of the HERE Events API service.
Get Events Service VersionTool to get the current version of the HERE Events service.
Get FeaturesTool to retrieve available map features per style for tile rendering.
Get Geofences HealthTool to check the health status of the HERE Geofences service.
Get Geofences Service VersionTool to get the current version of the HERE Geofences service.
Get Service Health StatusTool to check the health status of the HERE Tracking API service.
Get Incident By IDTool to get details of a specific traffic incident by its ID.
Get Raster Tile API InfoTool to get metadata about the HERE Raster Tile API v3.
Get IsolinesTool to calculate isolines.
Get Labels Service HealthTool to check the health status of the HERE Labels service.
Get Labels Service VersionTool to retrieve the current version of the HERE Labels service.
Get Label TileRetrieves a map tile image with text labels using HERE Raster Tile API v3.
Get Supported LanguagesTool to retrieve supported languages for map tile labels from HERE Raster Tile API.
Get Largedata Service HealthTool to check the health status of the HERE Tracking largedata service.
Get Largedata Service VersionTool to retrieve the current version of the HERE largedata tracking service.
Get Locations Service HealthTool to check the health status of HERE's locations tracking service.
Get Locations Service VersionTool to retrieve the current version of the HERE Tracking Locations service.
Get Map ImageRetrieves a static map image from HERE Map Image API v3.
Get Map Tile with TransitTool to request a map tile with public transport overlay from HERE Raster Tile API v3.
Compute Routing MatrixComputes routing matrices for batch distance and travel time calculations between multiple origins and destinations.
Get Matrix Calculation ResultTool to retrieve the result of a successfully completed matrix calculation.
Get Metadata Service HealthTool to retrieve the health status of the HERE Tracking metadata service.
Get Service VersionTool to retrieve the current version number of the HERE Tracking service.
Get Notifications Service HealthTool to check the health status of the HERE Tracking Notifications service.
Get Notifications Service VersionTool to get the current version of the HERE Notifications service.
Get OpenAPI SpecificationTool to retrieve the OpenAPI 3 specification for the HERE Traffic API v7.
Get Political ViewsTool to retrieve available geopolitical views for HERE map rendering.
Get Tour Planning SolutionTool to retrieve the solution for a completed tour planning problem.
Get Matrix Routing ProfileTool to retrieve a specific matrix routing profile definition by its ID.
List Matrix Routing ProfilesTool to list all supported predefined routing profiles for matrix routing calculations.
Get Registry HealthTool to check the health status of the HERE Tracking Registry service.
Get Registry Service VersionTool to get the current version of the HERE Registry service.
Get Service Health StatusTool to check the HERE Tracking service health status.
Get Raster Map TileTool to retrieve a raster map tile image for a specific zoom level, column, and row from HERE Raster Tile API v3.
Calculate RoutesTool to calculate routes between waypoints supporting multiple transport modes (car, truck, pedestrian, bicycle, scooter, taxi, bus).
Get Rules Service HealthTool to check the health status of the HERE Tracking Rules service.
Get Rules Service VersionTool to retrieve the current version of the HERE Tracking Rules service.
Get Sensors HealthTool to check the health status of the HERE Tracking Sensors service.
Get Sensors Service VersionTool to retrieve the current version of the HERE Tracking sensors service.
Get Shadows Service HealthTool to check the health status of the HERE Tracking Shadows service.
Get Shadows Service VersionTool to retrieve the current version of the HERE Shadows tracking service.
Get Shipments HealthTool to check the health status of the HERE Shipments service.
Get Shipments Service VersionTool to get the HERE shipments tracking service version.
Get Transit StationsTool to search for transit stations around a location.
Get Tour Planning Job StatusCheck the status of an asynchronous tour planning optimization job.
Get Server TimestampTool to get the current server timestamp from HERE Tracking API.
Get Traces Service HealthTool to check the health status of the HERE Tracking service.
Get Tracking Service VersionTool to retrieve the current version of the HERE Tracking service.
Get Traffic FlowTool to retrieve real-time traffic flow data.
Get Traffic IncidentsTool to fetch real-time traffic incidents within a specified area.
Get Traffic TileRetrieve a traffic flow overlay tile image showing real-time traffic conditions.
Get Users Service HealthTool to check the HERE Tracking Users API service health status.
Get Users Service VersionTool to get the current version of the HERE tracking service.
Get Vector TileRetrieves protocol buffer encoded binary vector tiles using HERE Vector Tile API v2.
Get Vector Tiles Layers DocumentationTool to retrieve OMV-2 layers documentation for HERE Vector Tiles.
Get Vector Tiles CopyrightTool to retrieve copyright information for HERE vector tiles.
Get Vector Tiles InfoTool to retrieve the current map version from HERE Vector Tiles Service.
Get Vector Tiles LanguagesTool to retrieve supported languages for vector map tiles from HERE Vector Tiles API.
Get Vector Tiles OpenAPI SpecificationTool to retrieve the OpenAPI specification for the HERE Vector Tiles API v2.
Get Vector Tiles Proto FormatsTool to retrieve a list of available protocol buffer formats from HERE Vector Tiles Service.
Get Vector Tiles Proto FileTool to retrieve protocol buffer (.
Get Vector Tiles Political ViewsTool to retrieve available political views for HERE vector tiles.
Get VersionTool to retrieve the version information of the HERE Traffic API.
Get Waypoint SequenceOptimizes the visit order of multiple waypoints between a fixed origin and destination.
Daily Weather ForecastGet 7-day weather forecasts for any location worldwide.
Get Weather ObservationTool to retrieve current weather observation.
Import Route from TraceTool to import and calculate a route from GPS trace points.
Locate DeviceDetermine device location based on WiFi and cellular network measurements.
Lookup Location by HERE IDRetrieves comprehensive details for a location using its HERE ID.
Calculate Routes via POSTCalculate routes using POST method with extensive customization options via request body.
Reverse Geocode CoordinatesConverts geographic coordinates (latitude, longitude) into human-readable addresses and location details.
Submit Tour Planning ProblemSubmit a tour planning problem synchronously to solve vehicle routing problems with constraints like time windows, capacity, and vehicle types.
Submit Tour Planning Problem (Async)Submit a tour planning problem asynchronously for large-scale vehicle routing optimization.
Weather AlertsRetrieve severe weather alerts for specified locations or routes.
Get Astronomy ForecastTool to fetch astronomical data (sunrise, sunset) for a specific location.
Hourly Weather ForecastTool to fetch hourly weather forecasts.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Prerequisites

Before starting, make sure you have:
  • A Google API key for Gemini models
  • A Composio account and API key
  • Python 3.9 or later installed
  • Basic familiarity with Python

Getting API Keys for Google and Composio

Google API Key
  • Go to Google AI Studio and create an API key.
  • Copy the key and keep it safe. You will put this in GOOGLE_API_KEY.
Composio API Key and User ID
  • Log in to the Composio dashboard.
  • Go to Settings → API Keys and copy your Composio API key. Use this for COMPOSIO_API_KEY.
  • Decide on a stable user identifier to scope sessions, often your email or a user ID. Use this for COMPOSIO_USER_ID.

Install dependencies

bash
pip install google-adk composio python-dotenv

Inside your virtual environment, install the required packages.

What's happening:

  • google-adk is Google's Agents Development Kit
  • composio connects your agent to Here via MCP
  • python-dotenv loads environment variables

Set up ADK project

bash
adk create my_agent

Set up a new Google ADK project.

What's happening:

  • This creates an agent folder with a root agent file and .env file

Set environment variables

bash
GOOGLE_API_KEY=your-google-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id-or-email

Save all your credentials in the .env file.

What's happening:

  • GOOGLE_API_KEY authenticates with Google's Gemini models
  • COMPOSIO_API_KEY authenticates with Composio
  • COMPOSIO_USER_ID identifies the user for session management

Import modules and validate environment

python
import os
import warnings

from composio import Composio
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()

warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")
What's happening:
  • os reads environment variables
  • Composio is the main Composio SDK client
  • GoogleProvider declares that you are using Google ADK as the agent runtime
  • Agent is the Google ADK LLM agent class
  • McpToolset lets the ADK agent call MCP tools over HTTP

Create Composio client and Tool Router session

python
composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["here"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url,
print(f"Composio MCP URL: {COMPOSIO_MCP_URL}")
What's happening:
  • Authenticates to Composio with your API key
  • Declares Google ADK as the provider
  • Spins up a short-lived MCP endpoint for your user and selected toolkit
  • Stores the MCP HTTP URL for the ADK MCP integration

Set up the McpToolset and create the Agent

python
composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Here operations."
    ),
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")
What's happening:
  • Connects the ADK agent to the Composio MCP endpoint through McpToolset
  • Uses Gemini as the model powering the agent
  • Lists exact tool names in instruction to reduce misnamed tool calls

Run the agent

bash
# Run in CLI mode
adk run my_agent

# Or run in web UI mode
adk web

Execute the agent from the project root. The web command opens a web portal where you can chat with the agent.

What's happening:

  • adk run runs the agent in CLI mode
  • adk web . opens a web UI for interactive testing

Complete Code

Here's the complete code to get you started with Here and Google ADK:

python
import os
import warnings

from composio import Composio
from composio_google import GoogleProvider
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()
warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")

composio_client = Composio(api_key=COMPOSIO_API_KEY, provider=GoogleProvider())

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["here"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url


composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Here operations."
    ),  
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")

Conclusion

You've successfully integrated Here with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Here using natural language commands.

Key takeaways:

  • The Tool Router approach dynamically routes requests to the appropriate Here tools
  • Environment variables keep your credentials secure and separate from code
  • Clear agent instructions reduce tool calling errors
  • The ADK web UI provides an interactive interface for testing and development

You can extend this setup by adding more toolkits to the toolkits array in your session configuration.

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FAQ

What are the differences in Tool Router MCP and Here MCP?

With a standalone Here MCP server, the agents and LLMs can only access a fixed set of Here tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Here and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Google ADK?

Yes, you can. Google ADK 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 Here tools.

Can I manage the permissions and scopes for Here while using Tool Router?

Yes, absolutely. You can configure which Here 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 Here data and credentials are handled as safely as possible.

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