Ideal Postcodes MCP server
Ideal Postcodes in any MCP client, through Memtro: Ideal Postcodes does not publish this server. Memtro's Ideal Postcodes connector reads Ideal Postcodes through its API with the credentials you connect, and one endpoint hands those tools, every other system you connect and Memtro's memory tools to Claude Code, Cursor, Claude Desktop or anything else that speaks Streamable HTTP, as you.
What the model can do
UK address and postcode lookup through Ideal Postcodes: every address at a postcode, address search by free text, an address by its UDPRN, and cleansing one messy address to the closest real one. Each lookup that returns data spends one of the account's paid credits, so use it for a specific address question, not to loop over lists.
Reads
idealpostcodes_lookup_postcodeEvery address at one UK postcode (house, organisation, UPRN, coordinates).idealpostcodes_search_addressesSearch UK addresses by free text (e.g. '10 Downing Street London'), ranked by relevance, optionally narrowed to a postcode or post town.idealpostcodes_lookup_udprnThe current full address for a Royal Mail UDPRN (an 8-digit delivery point number, e.g. 25962203), for checking a stored address is still valid.idealpostcodes_cleanse_addressMatch one messy, free-form UK address to the closest real address, with a confidence score (0 to 1), a fit score and how well each part (premise…idealpostcodes_key_statusWhether the Ideal Postcodes key can be used right now (false means it has no credits left or has hit a daily or monthly limit).
Connect it
First connect Ideal Postcodes on Dashboard → Connections, then add Memtro to your client once. The Ideal Postcodes tools appear alongside the tools of everything else you have connected; nothing is configured per connector.
Claude Code
The Memtro plugin registers the server and a skill for when to use it; the tools are then available in every session.
claude plugin marketplace add memtro-org/claude-memtro
claude plugin install memtro@memtro --config api_key=sk-memtro-...Cursor
Add the server to .cursor/mcp.json in the project, or to the global file under ~/.cursor/.
{
"mcpServers": {
"memtro": {
"url": "https://platform.memtro.com/api/mcp",
"headers": {
"Authorization": "Bearer sk-memtro-..."
}
}
}
}Claude Desktop
Create a personal API key on Dashboard → Profile → API keys. In Claude Desktop add an MCP server of type HTTP with URL https://platform.memtro.com/api/mcp and the header Authorization: Bearer sk-memtro-…
OpenCode
A remote server in opencode.json.
{
"mcp": {
"memtro": {
"type": "remote",
"url": "https://platform.memtro.com/api/mcp",
"headers": {
"Authorization": "Bearer sk-memtro-..."
}
}
}
}Pi
One command: pi mcp add memtro --url https://platform.memtro.com/api/mcp --bearer-token-env-var MEMTRO_API_KEY. Tools arrive as mcp__memtro__*. The pi-memtro extension registers it for you, alongside Memtro as the model.
Any other client
Add an MCP server of type HTTP (Streamable HTTP, stateless) at https://platform.memtro.com/api/mcp with the header Authorization: Bearer sk-memtro-.... Codex, Zed, Windsurf, Cline and the SDKs all take a remote server this way.
Who may use it
The key identifies the person, and the server offers that person the tools they may use everywhere else in Memtro. A shared Ideal Postcodes connection is used by the teams an administrator granted it to, tool by tool, on the Permissions page; a personal connection is used by its owner alone, and its tools that act stay off until the owner allows them. See Teams and permissions and Connectors.
Ask it like this
- › List every address at postcode LS1 4AP
- › Find the full address for 12 Mill Lane, Harrogate
- › Is the Brightwave Ltd billing address on file still a real address?
- › What is the current address for UDPRN 25962203?
- › Can the Ideal Postcodes key still be used, or are we out of credits?
Questions
- Is this an official Ideal Postcodes MCP server?
- No. It is Memtro's MCP server with Memtro's Ideal Postcodes connector behind it: the connector reads Ideal Postcodes through its API with the credentials you connect on Dashboard → Connections, and Ideal Postcodes publishes nothing here. The same endpoint carries every other system you connect and Memtro's memory tools.
- What does it cost?
- Nothing on top of Memtro. One price per organisation by its number of users, from $50 a month for up to 10 users after a 7-day free trial, with every connector, the MCP server, jobs and memory included. You bring your own model keys.
- Can it change anything in Ideal Postcodes?
- Not yet. Today every Ideal Postcodes tool reads, searches or lists; when it gains actions, each is marked, granted by name and used only when you ask, so nothing is created, sent, updated or deleted until you say so.
- Which clients work?
- Any MCP client that speaks Streamable HTTP: Claude Code, Cursor, Claude Desktop, OpenCode, Codex, Zed, Windsurf, Cline and the Anthropic and OpenAI SDKs. There is no local process to run; the server is remote and authenticated with your key.