Integration
Connect Castos and eSignatures
When New Episode fires in Castos, your agent runs Add Signer in eSignatures, or Contract Signed in eSignatures to Find Private Subscriber by Email in Castos. 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 eSignatures 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 and eSignatures can do together
From Castos to eSignatures
When New Episode in Castos
then Add Signer in eSignatures
When New Podcast in Castos
then Add Template in eSignatures
From eSignatures to Castos
When Contract Signed in eSignatures
then Find Private Subscriber by Email in Castos
When Contract Withdrawn in eSignatures
then Create Episode in Castos
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 eSignatures
Triggers and actions 7 triggers · 29 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.
Trigger
Contract SignedTriggers when a contract is signed by all signers.
Trigger
Contract WithdrawnFires when a sent contract is withdrawn/cancelled before signing completes. Webhook event "Contract withdrawn".
Trigger
Signer Declined SignatureFires when a signer declines to sign the contract. Webhook event "Signer declined the signature".
Trigger
Signer Viewed ContractFires when a signer opens/views the contract. Webhook event "Signer viewed the contract".
Action
Add SignerAdd a new signer to an existing contract.
Action
Add TemplateCreate a new reusable contract template.
Action
Create ContractCreates a new contract.
Action
Delete SignerRemove a signer from a contract that has not yet signed.
Action
Delete TemplateDelete a contract template.
Action
Get ContractRetrieve a contract's current status, signer states, and metadata.
Action
Get TemplateRetrieve a contract template's details.
Action
List TemplatesList all contract templates in the account.
Action
Send Contract DraftSend a previously created draft contract to its signers.
Action
Update TemplateUpdate an existing contract template's title or settings.
Action
Withdraw ContractWithdraw (cancel) a contract that has been sent but not fully signed.
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
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Questions
Castos and eSignatures, 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 eSignatures when something happens in Castos?
Any of eSignatures's 11 actions, including Create Contract, Send Contract Draft, Update Template and Add Signer. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from eSignatures to Castos?
Yes. When something happens in eSignatures, your agent can act in Castos too. This page covers both directions: eSignatures's triggers and Castos's actions are listed here as well.
Do I have to build a connector for Castos or eSignatures?
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 eSignatures 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.