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How to connect Ideal Postcodes to Claude Cowork

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

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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

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Ideal Postcodes account to Cowork via Composio Connect, enabling it to lookup address for SW1A 1AA, cleanse and standardize 100 addresses, validate postcode and geocode coordinates, and more such actions on your behalf without compromising your account security.

Also integrate Ideal Postcodes with

ChatGPT WorkHermes

Connecting Ideal Postcodes to Claude Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your Ideal Postcodes account

Back in Cowork, ask the agent to connect to Ideal Postcodes or give it any Ideal Postcodes-related task.

For example, ask Cowork to:

  • "Lookup address for SW1A 1AA"
  • "Cleanse and standardize 100 addresses"
  • "Validate postcode and geocode coordinates"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Ideal Postcodes account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Ideal Postcodes through MCP without you sharing account credentials directly with the agent.

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.

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

Hermes logo

Hermes

Use Ideal Postcodes MCP with Hermes

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. Claude Cowork 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.

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