Build solutions, not workarounds.
What do you want Cassidy and lemlist to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiAny 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 Cassidy can start in lemlist
When Workflow Finished Running in Cassidy
then Add Recipient to Unsubscribe List in lemlist
When Workflow Finished Running in Cassidy
then Update Lead From Campaign in lemlist
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 Cassidy and lemlist
Triggers and actions 2 triggers · 8 actions
Trigger
Workflow Finished RunningTriggers when a Workflow finishes running within Cassidy.
Trigger
New ActivityTriggers when an activity has ocurred. It can be an email has been sent, replied to, bounced, or unsubscribed from or v3 new activity like a LinkedIn profile have been visited or a phone call just ended.
Action
Add Recipient to Unsubscribe ListAdd a recipient to the unsubscribe list.
Action
Mark a Lead From All Campaigns as InterestedMark a Lead From All Campaigns as Interested.
Action
Mark a Lead From One Campaign as InterestedMark a Lead From One Campaign as Interested.
Action
Remove Lead From CampaignRemove a Lead from a campaign.
Action
Remove Lead From UnsubscribeRemove a Lead from unsubscribe.
Action
Resume Lead From All or Specific CampaignsResume Lead From All or Specific Campaigns.
Action
Search LeadSearch a lead.
Action
Update Lead From CampaignUpdate Lead From Campaign.
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
More from Cassidy
Cassidy to AgifyAPI that estimates a person's likely age from their first name, with optional country-based scoping.
Cassidy to HubSpotHubSpot is your all-in-one stop for all of your marketing software needs.
Cassidy to SalesforceSalesforce is a leading enterprise customer relationship management (CRM) platform.
Cassidy to SlackSlack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...
Cassidy to Google SheetsGoogle Sheets
Cassidy to GmailGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
More into lemlist
HubSpot to lemlistHubSpot is your all-in-one stop for all of your marketing software needs.
Gmail to lemlistGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
Google Calendar to lemlistGoogle Calendar is a time management tool providing scheduling features, event reminders, and integration...
ActiveCampaign to lemlistActiveCampaign is a marketing automation, email marketing, and CRM platform.
Airtable to lemlistOrganize anything with Airtable, a modern database created for everyone.
Asana to lemlistAsana is a collaborative information manager for workspace.
Questions
Cassidy and lemlist, answered
What can start an automation from Cassidy?
Any of Cassidy's 1 trigger in the catalog, including Workflow Finished Running. Describe the moment in plain language and your agent picks the right one.
What can your agent do in lemlist when something happens in Cassidy?
Any of lemlist's 8 actions, including Update Lead From Campaign, Add Recipient to Unsubscribe List, Mark a Lead From All Campaigns as Interested and Mark a Lead From One Campaign as Interested. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from lemlist to Cassidy?
lemlist has no triggers in the catalog today, so automations start in Cassidy. If you need the other direction, ask: your agent reads lemlist's API documentation and adds it.
Do I have to build a connector for Cassidy or lemlist?
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.
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.