Integration · Company data

Connect Claude & ChatGPT to AddressZen

Ask your AI to clean up a US address, finish a half-typed one, or check whether an email address or phone number is valid, using AddressZen. It returns the standardised address or tells you there is no match. Useful when you are fixing a customer list, checking a shipping address or reviewing sign-ups.

Connect AddressZen free

Free plan, no credit card. Takes about a minute.

Try asking

“Is '1600 pennsylvania ave washington' a real address?”
The AI verifies the address and returns the corrected, standardised version, or says there is no match. This uses lookup credits.
“Finish this address: 350 Fifth Ave, New Y”
It suggests matching US addresses and resolves the one you pick into a full, formatted address.
“Is [email protected] deliverable?”
It checks whether the email address is valid and deliverable. No email is sent.

What your AI can do

Address verification

Verify and standardise a US address from free text, with optional city, state and ZIP code.

Address autocomplete

Suggest US addresses from a partial input, filter by city, state or postal code, and get the full formatted address.

Email and phone checks

Check whether an email address is valid and deliverable, and whether a phone number is valid, with optional carrier lookup.

“Is +1 212 555 0100 a valid number, and who is the carrier?”
It validates the phone number and can look up the current carrier.
“Clean up these five shipping addresses before we print labels.”
It verifies each address in turn and lists the standardised versions and any that did not match.
“Which places match 'Springfield'?”
It searches places such as cities and regions, and can bias the results to a country or location.

25 tools for AddressZen

These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.

autocomplete_addressesSuggest matching US addresses for a partial `query`, with optional filters such as city, state, postal code and location bias. Returns address IDs to resolve with get_address.
create_key_configChanges dataCreate a new config for a key. Required: name or payload.
create_key_licenseeChanges dataCreate a new licensee for a key. Search licensees first to avoid duplicates.
create_licensee_regenerate_keyChanges dataCreate a new regenerate key for a licensee.
create_sign_upDeletesCreate a new sign up. Required: email, name, org name, org address line one, org post town or org postcode. Destructive action; may require approval. API summary: Mint CLI Signup Token.
delete_key_configDeletesPermanently delete a config by config. Destructive action; may require approval.
delete_key_licenseeDeletesPermanently delete a licensee by licensee. Destructive action; may require approval. API summary: Cancel.
get_addressGet the full, formatted US address for an `address` ID returned by autocomplete_addresses.
get_keyGet one key by key key. API summary: Availability.
get_key_configGet one config for a key by config. API summary: Retrieve.
get_key_licenseeGet one licensee for a key by licensee. API summary: Retrieve.
get_placeGet details of one place by `place` ID returned by search_places.
get_sign_upGet one sign up by cli token. API summary: Poll CLI Signup Token.
list_key_configsList configs for a key. Optional filters: user token.
list_key_detailsList details for a key. Optional filters: user token.
list_key_lookupsList lookups for a key. Optional filters: user token, end or licensee. Results are paginated. API summary: Logs (CSV).
list_key_usagesList usages for a key. Optional filters: user token, end, tags or licensee. Results are paginated. API summary: Usage Stats.
search_key_licenseesSearch licensees for a key by user token or query. Use this to find existing licensees before creating a new licensee. Results are paginated. API summary: List.
search_placesFind places (cities, regions, localities) matching a `query`, optionally biased to a country or location.
update_key_configChanges dataUpdate an existing config identified by config.
update_key_detailsVisible to othersUpdate an existing detail identified by key key. Has effects visible outside this system. API summary: Update Details.
update_key_licenseeChanges dataUpdate an existing licensee identified by licensee.
validate_emailVisible to othersCheck whether an email address in `query` is valid and deliverable. Does not send any email. Uses lookup credits.
validate_phone_numberCheck whether a phone number in `query` is valid, with optional current carrier lookup. Uses lookup credits.
verify_addressChanges dataVerify and standardise a US address given as free text in `query` (optionally with city, state, zip_code). Returns the corrected address or no match. Uses lookup credits.

Set up in three steps

1
Pick the app
Create a free HeyMyApps account and choose AddressZen from the app list.
2
Paste your key
Paste an AddressZen API key. Sign in to AddressZen and open the API keys page in your dashboard (account.addresszen.com/tokens). The key begins with ak_. Each lookup uses your key's balance.
3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
1. Click your name, then Settings › Connectors › Add custom connector.
2. Paste your link as the Remote MCP server URL.
3. Switch it on from the + menu in a chat.

Questions

What can the AI do in AddressZen?

It can verify and standardise US addresses, autocomplete a partial US address and fetch the full formatted address, search places, validate email addresses and validate phone numbers with an optional carrier lookup. It only looks things up. It does not send email or change anything in your account.

Does the AI see my AddressZen API key?

No. Your AddressZen API key is encrypted at rest and never shown to the AI. After you save it, it is not shown again, not even to you. The AI only sees the results of the tools it calls.

Can I control what the AI is allowed to do?

Yes. You choose which tools are switched on. Address verification, email validation and phone validation use lookup credits, and they can require your approval before they run. Every tool call is logged.

Does it work with ChatGPT?

Yes. In ChatGPT go to Settings › Apps & Connectors › Advanced and turn on Developer mode, then add your HeyMyApps link. Developer mode needs a paid ChatGPT plan: Plus, Pro, Business or Enterprise. The same link also works in Claude (Settings › Connectors › Add custom connector), Cursor and other MCP clients.

What does it cost?

HeyMyApps has a free plan with no credit card required. Paid plans bill per completed task. You also need your own AddressZen account.

Do lookups use my AddressZen balance?

Yes. Lookups run on your own AddressZen API key, so they use that key's balance, the same as calls from your own systems. Verifying an address, validating an email and validating a phone number use lookup credits. You can switch off the tools you do not need.