Integration
Connect Exercise.com to Lettr
When New Client fires in Exercise.com, your agent runs Add contact in Lettr. 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 Exercise.com and Lettr to do together?
Ask the assistant
Connect your AI client
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 Exercise.com can start in Lettr
When New Client in Exercise.com
then Add contact in Lettr
When New Invoice in Exercise.com
then Add contact to list in Lettr
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 Exercise.com and Lettr
Triggers and actions 6 triggers · 24 actions
Trigger
List StaffTriggers when a new staff member becomes available to be assigned tasks.
Trigger
New ClientTriggers when a new user (client) is created in Exercise.com.
Trigger
New InvoiceTriggers when a new invoice is created.
Trigger
New Plan PurchasedTriggers when a member purchases a package or plan.
Trigger
New Staff TaskTriggers when a new staff task is created.
Trigger
Session BookedTriggers when a member books a session (a new visit appears).
Action
Create Staff TaskCreates a staff task assigned to a staff member, optionally about a member or staff user.
Action
Delete Staff TaskDeletes a staff task.
Action
Find UserFinds an Exercise.com user by user ID and returns the profile, or nothing when no user matches.
Action
Get Staff TaskReturns one staff task with its assignee, status and due time.
Action
Get UserReturns one Exercise.com user's profile: name, contact details, address and body measurements.
Action
List InvoicesLists invoices, optionally for one user or filtered by status or overdue.
Action
List PackagesLists the packages (memberships and service bundles) you sell.
Action
List Staff TasksLists staff tasks, optionally filtered by assignee, status or due-date range.
Action
List User PackagesLists the packages members hold, with status, billing and renewal dates.
Action
List UsersLists Exercise.com users, newest first, optionally filtered by creation date, IDs or location.
Action
List VisitsLists member visits (bookings and check-ins), optionally for one user or a date range.
Action
Update Staff TaskUpdates a staff task; only the fields you supply change.
Action
Update UserUpdates a user's profile; only the fields you supply change. Email cannot be changed.
Action
Add audience listCreates a new audience list in Lettr with the given name and returns the created list.
Action
Add contactAdds a new contact to your Lettr audience, optionally placing it on a list, setting custom properties, and sending a double opt-in confirmation email.
Action
Add contact to listAdds an existing contact to one of your audience lists. Succeeds whether the contact was newly added or was already on the list.
Action
Add templateCreates a new email template in Lettr from HTML or Topol editor JSON content, and publishes its first version with the merge tags found in the content.
Action
Delete contactPermanently deletes a contact from your Lettr audience.
Action
Get contactReturns a single audience contact, including its subscription status, custom properties, lists and topics.
Action
Get templateReturns a single email template by its slug, including its HTML, editor content, purpose, status and version details.
Action
List audience listsReturns all audience lists in your Lettr team, with each list's name and contact count.
Action
List contactsReturns the contacts in your Lettr audience, optionally narrowed by a search term, subscription status, list or segment.
Action
List templatesReturns the email templates in a Lettr project, optionally limited to one folder or to transactional or campaign templates.
Action
Update contactUpdates an existing contact in your Lettr audience, changing its email address, subscription status or custom properties. Fields left blank are not changed.
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
Reviews
What our customers say
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Questions
Exercise.com and Lettr, answered
What can start an automation from Exercise.com?
Any of Exercise.com's 6 triggers in the catalog, including New Client, New Invoice, New Plan Purchased and New Staff Task. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Lettr when something happens in Exercise.com?
Any of Lettr's 11 actions, including Update contact, Add audience list, Add contact and Add contact to list. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Lettr to Exercise.com?
Lettr has no triggers in the catalog today, so automations start in Exercise.com. If you need the other direction, ask: your agent reads Lettr's API documentation and adds it.
Do I have to build a connector for Exercise.com or Lettr?
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 Exercise.com and Lettr 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.