# Addresszen — MCP server on mcp.ai
> Connect your Addresszen account and use 2 tools for developer tools straight from your AI agent. Connect with your own API key. AddressZen provides address autocomplete and verification services, offering real-time address suggestions and validation to ensure accurate and deliverable addresses.

By: mcp.ai · official
Page: https://mcp.ai/addresszen

## Connect (MCP protocol)
Remote MCP endpoint (HTTP, streamable): https://api.mcp.ai/p_addresszen?ms=1787293560000
Add it as a custom/remote MCP connector, then authenticate when prompted.

## REST API (no MCP client required)
Every tool is also a REST endpoint, authed with a workspace API key.
Discover: GET https://api.mcp.ai/api/addresszen/_endpoints   # public; lists every endpoint
Call:     POST https://api.mcp.ai/api/addresszen/<endpoint>
  Authorization: Bearer sk_live_…   # create one at https://mcp.ai/settings/api-keys
  Content-Type: application/json
  Body: { …args }   →   { "ok": true, "tool": "<id>", "result": { … } }

## Developer docs
How to use (MCP or REST), markdown: https://mcp.ai/addresszen/skill.md
Postman collection (v2.1): https://mcp.ai/addresszen/postman.json

## Tools
- addresszen_key_availability(key: string) — Tool to get public information on an API key, including whether it is currently usable. Use when you need to verify that a key is valid and available before making further API requests.
- addresszen_resolve_address_usa(address: string) — Tool to resolve an address autocompletion by its address ID and return the full address in US format. Use after obtaining an address suggestion ID from the autocomplete endpoint.

## Example prompts
- "What can I do in Addresszen?"
- "Show me a summary of my Addresszen account"

## Links
Docs: https://mcp.ai/docs/mcps/addresszen
Website: https://mcp.ai/mcps/addresszen