--- title: "Connect Corymbus and PostStack - APIANT.ai" description: "When \"New Activity\" fires in Corymbus, your agent runs \"Add a contact\" in PostStack." canonical: "https://apiant.ai/connect/corymbus-to-poststack" --- # Connect Corymbus and PostStack When **New Activity** fires in [Corymbus](https://apiant.ai/connections/corymbus), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **Create Contact** in Corymbus. Describe the whole flow and it is built, tested on every scenario and kept running. Corymbus **2** triggers Corymbus **9** actions PostStack **7** triggers PostStack **31** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Corymbus and PostStack to do together? Give your AI client this address. `https://mcp.apiant.ai` One 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.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) Example flows ## What Corymbus and PostStack can do together ### From Corymbus to PostStack - When **New Activity** in Corymbus then **Add a contact** in PostStack - When **New Contact** in Corymbus then **Add contacts to segment** in PostStack ### From PostStack to Corymbus - When **Contact Updated (instant)** in PostStack then **Create Contact** in Corymbus - When **New Contact (instant)** in PostStack then **Find contacts** in Corymbus 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 Corymbus and PostStack ## Triggers and actions 9 triggers · 40 actions - Trigger **New Activity** Triggers when a new activity is created in Corymbus, optionally limited to activities linked to a given account, contact or opportunity, or owned by a given user. - Trigger **New Contact** Triggers when a new contact is created in Corymbus, optionally limited to contacts matching a name, account, activity, opportunity, group or owner. - Action **Add activity** Creates a new activity (task, call, meeting, note or email) in Corymbus and returns the created activity. - Action **Connect entities** Connects two Corymbus records together, for example an opportunity to an activity or a contact to an account. - Action **Create Account** Creates a new account (company) in Corymbus CRM and returns the created account. - Action **Create Contact** Creates a new contact (person) in Corymbus, optionally linked to an account, and returns the created contact. - Action **Create Opportunity** Creates a new opportunity (deal) in Corymbus, optionally linked to an account, with an amount, status and expected close date. - Action **Find Account** Finds accounts whose name contains the given text, optionally limited to an owner or a connected activity, and returns the matches. - Action **Find activities** Returns the activities whose name contains the text you give, optionally narrowed to an account, contact, opportunity, owner or late activities. - Action **Find contacts** Returns the Corymbus contacts whose first or last name contains the text you give, optionally narrowed by account, activity, opportunity, group or owner. - Action **Find opportunities** Returns the opportunities whose name contains the text you specify, optionally narrowed by account, contact, activity, owner or expected close period. - Trigger **Contact Deleted (instant)** Fires when a contact is deleted (event: contact.deleted). - Trigger **Contact Updated (instant)** Fires when a contact is updated (event: contact.updated). - Trigger **Email Bounced (instant)** Fires when an email bounces (event: email.bounced). - Trigger **Email Delivered (instant)** Fires when an email is delivered (event: email.delivered). - Trigger **New Contact (instant)** Fires when a contact is created (event: contact.created). - Trigger **New Inbound Email** Polls for newly received inbound emails. - Trigger **New Sent Email (instant)** Fires when an email is sent (event: email.sent). - Action **Add a broadcast** Create a new marketing broadcast. - Action **Add a contact** Create a new contact. - Action **Add a segment** Create a new manual contact segment. - Action **Add a template** Create a new email template. - Action **Add contacts to segment** Add contacts to an existing segment. - Action **Add suppression** Add an address to the suppression list. - Action **Cancel broadcast** Cancel an in-flight broadcast. - Action **Cancel email** Cancel a scheduled or queued email before it sends. - Action **Delete a contact** Delete a contact. - Action **Delete a template** Delete an email template. - Action **Get a contact** Fetch one contact by ID. - Action **Get a template** Fetch one email template by ID. - Action **Get broadcast** Retrieve one broadcast by its public id, including the HTML and text bodies that the list endpoint omits. - Action **Get email** Fetch one sent or queued email by ID. - Action **Get email events** Get the delivery event timeline for one email. - Action **Get inbound email** Fetch one received inbound email by ID. - Action **Import contacts** Bulk-import a CSV list of contacts. - Action **List broadcasts** List marketing broadcasts. - Action **List contacts** List contacts in the account. - Action **List emails** List sent, queued, and scheduled emails. - Action **List inbound emails** List emails received via inbound parsing. - Action **List segments** List contact segments. - Action **List suppressed addresses** List addresses on the suppression list. - Action **List templates** List email templates. - Action **Send an email** Send a transactional email through PostStack. - Action **Send broadcast** Start sending a broadcast to its recipients. - Action **Send emails in batch** Send up to 100 emails in a single request. - Action **Update a contact** Update an existing contact's fields. - Action **Update a template** Update an email template, creating a new version. - Action **Update email** Reschedule a queued email's send time. - Action **Validate email address** Check whether an email address is valid and deliverable. ## Each app on its own - [ **Corymbus** Corymbus is a CRM platform devoted to small businesses and freelances.](https://apiant.ai/connections/corymbus) - [ **PostStack** EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics](https://apiant.ai/connections/poststack) Reviews ## What our customers say ## More from Corymbus - [ **Corymbus to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/corymbus-to-hubspot) - [ **Corymbus to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/corymbus-to-salesforce) - [ **Corymbus to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/corymbus-to-slack) - [ **Corymbus to Google Sheets** Google Sheets](https://apiant.ai/connect/corymbus-to-google-sheets) - [ **Corymbus to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/corymbus-to-gmail) - [ **Corymbus to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/corymbus-to-google-calendar) ## More into PostStack - [ **HubSpot to PostStack** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-poststack) - [ **Google Sheets to PostStack** Google Sheets](https://apiant.ai/connect/google-sheets-to-poststack) - [ **Gmail to PostStack** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-poststack) - [ **Google Calendar to PostStack** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-poststack) - [ **Google Drive to PostStack** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-poststack) - [ **Mailchimp to PostStack** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-poststack) Questions ## Corymbus and PostStack, answered ### ### What can start an automation from Corymbus? Any of Corymbus's 2 triggers in the catalog, including New Activity and New Contact. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PostStack when something happens in Corymbus? Any of PostStack's 31 actions, including Send an email, Send broadcast, Send emails in batch and Update a contact. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from PostStack to Corymbus? Yes. When something happens in PostStack, your agent can act in Corymbus too. This page covers both directions: PostStack's triggers and Corymbus's actions are listed here as well. ### ### Do I have to build a connector for Corymbus or PostStack? 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 Corymbus and PostStack 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.