How to integrate Google address validation MCP with Hermes

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Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your Google address validation account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate Google address validation with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,000+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating Google address validation with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to Google address validation

Ask your agent to connect to Google address validation, or simply request any Google address validation-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new Google address validation connection.

Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to Google address validation or request any Google address validation-related task. It will prompt you to authenticate and authorize access.

5. Done!

What is the Google address validation MCP server, and what's possible with it?

The Google address validation 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 address validation account. It provides structured and secure access to address validation and geocoding services, so your agent can validate, standardize, geocode, and provide feedback on addresses automatically on your behalf.

  • Real-time address validation: Instantly check if an address is accurate, correctly formatted, and deliverable based on Google’s global data.
  • Address standardization: Have your agent automatically reformat and standardize messy or incomplete addresses for consistent records.
  • Retrieve geolocation details: Let your agent determine the latitude and longitude coordinates for any validated address, supporting location-based workflows.
  • Deliverability verdicts: Enable your agent to check whether an address can actually receive mail, helping prevent failed shipments or returns.
  • Automated feedback on validations: Provide structured feedback about address validation attempts, improving future accuracy and reporting.

Supported Tools & Triggers

Tools
Provide Validation FeedbackTool to provide feedback on an address validation attempt.
Validate AddressTool to validate and standardize addresses.

Way Forward

With Google address validation connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

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FAQ

What are the differences in Tool Router MCP and Google address validation MCP?

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

Can I use Tool Router MCP with Hermes?

Yes, you can. Hermes 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 address validation tools.

Can I manage the permissions and scopes for Google address validation while using Tool Router?

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

Used by agents from

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HubSpot
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