Integration
Connect MailUp to UK Companies House
When New Email Message in List fires in MailUp, your agent runs Get filing history item in UK Companies House. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want MailUp and UK Companies House to do together?
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Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What MailUp can start in UK Companies House
When New Email Message in List in MailUp
then Get filing history item in UK Companies House
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with MailUp and UK Companies House
Triggers and actions 4 triggers · 37 actions
- New Email Message in List
A new email message was created in the list. MailUp is a multi-list environment and messages are list-specific.
- New Group
New group added to the specified list. MailUp is a multi-list environment and groups are list-specific.
- New Recipient Subscribed
There is a new subscriber in the specified list. MailUp is a multi-list environment.
- New Recipient Unsubscribed
A recipient unsubscribed from the specified list. MailUp is a multi-list environment.
- Add list
Create a new list. POST Console/List
- Add Recipient to Group
Add recipient to the specified group on the list.
- Add Recipient to List
Adds a new recipient to the specified list as a subscriber.
- Create New Email Message
Create a new email message on the specified list.
- Create New Group
Add a new group to the specified list. MailUp is a multi-list environment.
- Delete email message
Delete an email message. DELETE Console/List/{id_List}/Email/{id_Message}
- Delete group
Delete a group in a list. DELETE Console/List/{id_List}/Group/{id_Group}
- Delete list
Delete a list. DELETE Console/List/{id_List}
- Get email message
Retrieve email message details. GET Console/List/{id_List}/Email/{id_Message}
- Get list
Retrieve list details by id. GET Console/List/{id_List}
- List email messages
Retrieve email messages of a list. GET Console/List/{id_List}/Emails
- List Email Message Sendings
lists the sendings (send tasks, with recipients count and status) created for an email message.
- List Group Recipients
Lists the recipients in a MailUp group (GET Console/Group/{id_group}/Recipients), with id, email, name and personal data fields.
- List groups
Retrieve groups of a list. GET Console/List/{id_List}/Groups
- List lists
Retrieve the console's lists. GET Console/List on services.mailup.com/API/v1.1/Rest/ConsoleService.svc
- List subscribed recipients
Retrieve subscribed recipients of a list. GET Console/List/{id_List}/Recipients/Subscribed
- Remove recipient from group
Unsubscribe a recipient from a group. DELETE Console/Group/{id_Group}/Unsubscribe/{id_Recipient}
- Remove Recipient From List
This method unsubscribe the given recipient from the specified list.
- Send Message to Email Address
Sends the specified message (previously created in MailUp in the specified List) to the email address specified.
- Send Message to Group
Send a message to a predefined group in the specified list.
- Send message to list
Send an email message to all recipients of a list. POST Console/List/{id_List}/Email/{id_Message}/Send
- Unsubscribe recipient from list
Unsubscribe a recipient from a list. DELETE Console/List/{id_List}/Unsubscribe/{id_Recipient}
- Update email message
Modify an email message. PUT Console/List/{id_List}/Email/{id_Message}
- Update group
Modify a group in a list. PUT Console/List/{id_List}/Group/{id_Group}
- Update list
Modify details of a list. PUT Console/List/{id_List}
- Find companies by name
Returns UK companies whose name matches the search term, with company number, status and registered address.
- Find companies with advanced search
Returns UK companies matching advanced criteria such as name, status, type, location, SIC codes and incorporation or dissolution dates.
- Find officers by name
Searches Companies House for company officers whose name matches the search term.
- Get company insolvency
Returns the insolvency cases recorded against a UK company, including case types, dates and appointed practitioners.
- Get company profile
Returns the basic profile of a UK company: name, status, type, incorporation date, registered office address, SIC codes and filing details.
- Get filing history item
Returns a single filing history item for a company, such as an accounts or confirmation statement filing, including its date, category, description and document links.
- Get registered office address
Returns the current registered office address of a UK company registered with Companies House.
- List charges
Returns the list of charges (mortgages and securities) registered against a UK company.
- List company officers
Returns the officers (directors, secretaries, LLP members) of a UK company registered at Companies House.
- List filing history
Returns the filing history of a UK company — the documents it has filed with Companies House, such as accounts and confirmation statements.
- List officer appointments
Returns every company appointment held by a Companies House officer, such as directorships and secretary roles.
- List persons with significant control
Returns the persons with significant control (individuals, corporate entities and legal persons) registered for a UK company.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
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Questions
MailUp and UK Companies House, answered
What can start an automation from MailUp?
Any of MailUp's 4 triggers in the catalog, including New Email Message in List, New Group, New Recipient Subscribed and New Recipient Unsubscribed. Describe the moment in plain language and your agent picks the right one.
What can your agent do in UK Companies House when something happens in MailUp?
Any of UK Companies House's 12 actions, including Find companies by name, Find companies with advanced search, Find officers by name and Get company insolvency. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from UK Companies House to MailUp?
UK Companies House has no triggers in the catalog today, so automations start in MailUp. If you need the other direction, ask: your agent reads UK Companies House's API documentation and adds it.
Do I have to build a connector for MailUp or UK Companies House?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use MailUp and UK Companies House without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.