addresszen

AddressZen through One

AddressZen is an address verification and autocomplete platform that provides APIs for validating, standardizing, and enriching postal addresses, allowing developers and operations teams to improve data quality, reduce failed deliveries, and streamline checkout, onboarding, and customer record workflows.

One exposes AddressZen through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform addresszen if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm AddressZen is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real AddressZen account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

Licensees

Action	Method	Path	Action id
List Licensees for an API Key	GET	/v1/keys/{{key}}/licensees	conn_mod_def::GMZh7N3931g::9Yf8TFTLTDyrj3tkolsAtA
List Licensees for an API Key	GET	/v1/keys/{{key}}/licensees	conn_mod_def::GMZjR49YtqA::0p0395JZSM-NALWgs9huew
Retrieve a Licensee for a Key	GET	/v1/keys/{{key}}/licensees/{{licensee}}	conn_mod_def::GMZh7N3zBgA::79Qi2FfnRC6r8c1bUfT-Zg
Retrieve a Licensee for a Key	GET	/v1/keys/{{key}}/licensees/{{licensee}}	conn_mod_def::GMZjR4-CL9A::PDzwb2KwQwCzoYDOHB7rDw
Create a Licensee for an API Key	POST	/v1/keys/{{key}}/licensees	conn_mod_def::GMZh7OhULHg::ChOng4uXTfCDB9dNDmiilw
Create a Licensee for an API Key	POST	/v1/keys/{{key}}/licensees	conn_mod_def::GMZjR4-CffA::u0aMVifmTc-cQb_y6RsXJg
Regenerate Key for a Licensee	POST	/v1/keys/{{key}}/licensees/{{licensee}}/regenerate-key	conn_mod_def::GMZjR48B78g::bsY34FVdRrmNb5FwePPkag
Update a Key's Licensee	PUT	/v1/keys/{{key}}/licensees/{{licensee}}	conn_mod_def::GMZh7Pp51Yg::oRNTtcovQNyZ2cjZtmqY4w
Update a Key's Licensee	PUT	/v1/keys/{{key}}/licensees/{{licensee}}	conn_mod_def::GMZjR8Bzvjg::RWwL70fuQrWSPdp0J-CnEg