X (Twitter)LinkedInGitHubDiscordYouTube

How to integrate Ideal Postcodes MCP with Hermes

Connect Hermes to Ideal Postcodes MCP. Lookup address for sw1a 1aa, cleanse and standardize 100 addresses, and more using natural language, with authentication handled for you.

Get started for freeGet a demo
Ideal Postcodes logoIdeal Postcodes
Api Key

Ideal Postcodes provides UK and international address search, postcode lookup, and address cleansing APIs. Use it to validate addresses, clean lists, and ensure accurate contact data.

9 Tools

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 Ideal Postcodes 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 Ideal Postcodes with

ChatGPT WorkClaude Cowork

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 Ideal Postcodes 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 Ideal Postcodes

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

4. Done. You're all set with a new Ideal Postcodes 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 Ideal Postcodes or request any Ideal Postcodes-related task. It will prompt you to authenticate and authorize access.

5. Done!

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

The Ideal Postcodes MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Ideal Postcodes account. It provides structured and secure access so your agent can perform Ideal Postcodes operations on your behalf.

Way Forward

With Ideal Postcodes 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.

TOOLS

Supported Tools

Every Ideal Postcodes action and event your agent gets out of the box.

Find Address Suggestions

Return ranked address suggestions for a partial address without resolving them; resolving a selected suggestion is a separate paid lookup.

Find Place Suggestions

Return ranked country, city, and administrative-area suggestions without resolving them; resolving a selected place is a separate paid lookup.

Get Address by Identifier

Retrieve a UK address by UDPRN or UMPRN.

Lookup Postcode

Return addresses at a UK postcode, or an Irish Eircode when enabled; successful results consume paid lookups.

Resolve Address Suggestion

Resolve an address suggestion ID to a complete GBR or USA address.

Resolve Place

Resolve a place suggestion ID to full geography and coordinates.

Search Addresses

Search complete UK address records by text, filters, or coordinates; successful results consume paid lookups.

Validate Address

Match and standardize a GBR or USA address with confidence details.

Validate Contact

Validate an email address or international phone number using an optional paid dataset enabled on the connected Ideal Postcodes API key.

FRAMEWORKS

How to build Ideal Postcodes MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use Ideal Postcodes MCP with ChatGPT Work

Claude Cowork logo

Claude Cowork

Use Ideal Postcodes MCP with Claude Cowork

FAQ

Frequently asked questions

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

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 Ideal Postcodes tools.

Yes, absolutely. You can configure which Ideal Postcodes 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.

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 Ideal Postcodes data and credentials are handled as safely as possible.

Start with Ideal Postcodes.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Ideal Postcodes tool your agent needs.Free to start.

Start building