Integration
Connect Castos to Maildroppa
When New Episode fires in Castos, your agent runs Add or Update Subscriber Field (By Email) in Maildroppa. 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 Castos and Maildroppa 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)Grok
Open grok.com/connectors, choose New Connector, then Custom, and paste the address. Grok signs you in in your browser.
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 Castos can start in Maildroppa
When New Episode in Castos
then Add or Update Subscriber Field (By Email) in Maildroppa
When New Podcast in Castos
then Add or Update Subscriber Field (By Subscriber ID) in Maildroppa
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 Castos and Maildroppa
Triggers and actions 3 triggers · 49 actions
Trigger
New EpisodeTriggers when a new episode is added to a Castos podcast.
Trigger
New PodcastTriggers when a new podcast is created in your Castos account.
Trigger
New Private SubscriberTriggers when a new private subscriber is added to a Castos private podcast.
Action
Create EpisodeCreates an episode on a Castos podcast, uploading its audio from a URL.
Action
Create PodcastCreates a podcast in Castos and returns its ID.
Action
Create Private SubscriberAdds a private subscriber to a Castos private podcast, giving them their own private feed.
Action
Delete EpisodeDeletes an episode from a Castos podcast.
Action
Delete PodcastDeletes a Castos podcast.
Action
Delete Private SubscriptionDeletes a private subscriber's subscription record from a Castos private podcast.
Action
Find Private Subscriber by EmailFinds a Castos private subscriber by email and returns their subscriptions to your private podcasts.
Action
Get EpisodeReturns one episode of a Castos podcast, with its title, show notes, publish date and audio file.
Action
Get PodcastReturns one Castos podcast by its ID, including its title, description, RSS URL and author.
Action
Get Private SubscriberReturns a Castos private subscriber by ID, with their subscriptions to your private podcasts.
Action
List EpisodesReturns the episodes of one Castos podcast.
Action
List Podcast CategoriesReturns the podcast category names Castos accepts, such as "Business: Marketing".
Action
List PodcastsReturns every podcast in the Castos account with its ID, title, type and whether its feed is protected.
Action
List Private SubscribersReturns the private subscribers of a Castos private podcast, with each one's email, feed URL and status.
Action
Reactivate Private SubscriberReactivates a canceled private subscriber's access to a Castos private podcast, by their email.
Action
Revoke Private SubscriberCancels a private subscriber's subscription to a Castos private podcast, cutting off their private feed.
Action
Update EpisodeUpdates a Castos episode's details; only the fields you supply change.
Action
Update PodcastUpdates a Castos podcast's details; only the fields you supply change.
Action
Add or Update Subscriber Field (By Email)Sets (replaces) one custom field value on the subscriber with the given email address.
Action
Add or Update Subscriber Field (By Subscriber ID)Sets or replaces one custom field value on a subscriber identified by subscriber ID.
Action
Assign Subscriber Tag (By Email)Assigns a customer tag to the subscriber with the given email address.
Action
Assign Subscriber Tag (By Subscriber ID)Assigns one of your active customer tags to a subscriber, identified by subscriber ID. Assigning a tag the subscriber already has does nothing.
Action
Count Subscribers (Filtered)Returns the number of subscribers matching a set of segment conditions, optionally limited to one subscriber status.
Action
Create Field TypeCreates a custom subscriber field in Maildroppa, such as a text, number, date or choice field.
Action
Create SegmentCreates a subscriber segment in Maildroppa from a set of field, tag, topic, segment or purchase conditions.
Action
Create TagCreates a new tag in Maildroppa that can be assigned to subscribers and used in segments.
Action
Delete All Subscribers (Optionally by Status)Deletes all subscribers in the account, optionally only those with a given status. Deletion runs in the background.
Action
Delete Field TypeArchives a customer-created subscriber field so it is no longer active.
Action
Delete SegmentDeletes a segment from your Maildroppa account. Segments still in use cannot be deleted.
Action
Delete Subscriber by EmailDeletes a subscriber from your Maildroppa audience, identified by their email address.
Action
Delete Subscriber by IDDeletes a single subscriber from your Maildroppa account by their subscriber ID.
Action
Delete Subscriber Field (By Email)Clears the value of one subscriber field for the subscriber with the given email address.
Action
Delete Subscriber Field (By Subscriber ID)Clears the value of one subscriber field for the subscriber with the given ID.
Action
Delete Subscribers (Bulk)Deletes several Maildroppa subscribers at once by their subscriber IDs.
Action
Delete Subscriber Tag (By Email)Removes a customer tag from the subscriber with the given email address.
Action
Delete Subscriber Tag (By Subscriber ID)Removes a tag from a subscriber identified by their subscriber ID.
Action
Delete TagDeletes (archives) a customer tag in Maildroppa so it can no longer be assigned. An archived tag can be restored later.
Action
Find Subscriber by EmailFinds a subscriber by their exact email address and returns their details.
Action
Get Segment by IDReturns one Maildroppa segment by its ID, including its name and filter conditions.
Action
Get Subscriber by IDReturns a subscriber by ID, including field values, tags, status and registration details.
Action
List Field Types (Paged)Returns all subscriber fields in the Maildroppa account, both built-in and custom, including field types and choice options.
Action
List Filtered Subscribers (Paged)Returns one page of subscribers matching a filter of field, tag, topic, segment or purchase conditions.
Action
List TagsReturns the tags in your Maildroppa account, including system-managed tags, optionally with archived ones.
Action
Request Double Opt‑InStarts double opt-in for a new subscriber by sending them a confirmation email. Their profile, tags and topics are applied once they confirm.
Action
Update Field TypeUpdates a custom subscriber field's label, required flag, internal visibility, position and choice options.
Action
Update SegmentReplaces a segment's name and rules in Maildroppa.
Action
Update SubscriberUpdates a subscriber's email, first name, status, custom field values and tags. Values left blank keep the subscriber's current data.
Action
Update Subscriber EmailChanges the email address of an existing Maildroppa subscriber.
Action
Update TagRenames an existing customer tag in Maildroppa and returns the updated tag.
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
Castos and Maildroppa, answered
What can start an automation from Castos?
Any of Castos's 3 triggers in the catalog, including New Episode, New Podcast and New Private Subscriber. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Maildroppa when something happens in Castos?
Any of Maildroppa's 31 actions, including Create Field Type, Create Segment, Create Tag and Update Field Type. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Maildroppa to Castos?
Maildroppa has no triggers in the catalog today, so automations start in Castos. If you need the other direction, ask: your agent reads Maildroppa's API documentation and adds it.
Do I have to build a connector for Castos or Maildroppa?
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 Castos and Maildroppa 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.