--- title: "Connect Hume AI and PostStack - APIANT.ai" description: "When \"New Voice\" fires in Hume AI, your agent runs \"Add a contact\" in PostStack, or \"Contact Updated (instant)\" in PostStack to \"Add config\" in Hume AI." canonical: "https://apiant.ai/connect/hume-ai-to-poststack" --- # Connect Hume AI and PostStack When **New Voice** fires in [Hume AI](https://apiant.ai/connections/hume-ai), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **Add config** in Hume AI. Describe the whole flow and it is built, tested on every scenario and kept running. Hume AI **4** triggers Hume AI **13** 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 Hume AI 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 Hume AI and PostStack can do together ### From Hume AI to PostStack - When **New Voice** in Hume AI then **Add a contact** in PostStack - When **Chat ended (instant)** in Hume AI then **Add contacts to segment** in PostStack ### From PostStack to Hume AI - When **Contact Updated (instant)** in PostStack then **Add config** in Hume AI - When **New Contact (instant)** in PostStack then **Add prompt** in Hume AI 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 Hume AI and PostStack ## Triggers and actions 11 triggers · 44 actions - Trigger **Chat ended (instant)** Fires when an EVI chat session ends (chat_ended webhook event). - Trigger **Chat started (instant)** Fires when a new EVI chat session begins (chat_started webhook event). - Trigger **New Voice** Triggers when a new voice is created. - Trigger **Tool call (instant)** Fires when EVI calls a registered tool during a conversation (tool_call webhook event). - Action **Add config** Create a new EVI configuration (voice assistant setup). - Action **Add prompt** Create a new system prompt for use in an EVI configuration. - Action **Add tool** Create a new tool definition that EVI can call during a conversation. - Action **Add voice** Save a new custom voice to the account from a TTS generation ID, for reuse in later speech requests. - Action **Convert voice** Convert the speech in an uploaded audio file into a different saved voice. - Action **Delete config** Delete an EVI configuration from the account. - Action **Delete voice** Delete a saved custom voice from the account. - Action **Generate Text to Speech** Convert text to speech using Hume AI's expressive text-to-speech technology. - Action **List configs** List the EVI configurations saved to the account. - Action **List prompts** List the prompts saved to the account. - Action **List tools** List the tool definitions saved to the account. - Action **List voices** List the custom voices saved to the account. - Action **Update config** Update an EVI configuration's name or description. - 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 - [ **Hume AI** Hume AI is a platform for expressive AI interactions, that understands human emotions through voice and...](https://apiant.ai/connections/hume-ai) - [ **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 Hume AI - [ **Hume AI to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/hume-ai-to-salesforce) - [ **Hume AI to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/hume-ai-to-slack) - [ **Hume AI to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/hume-ai-to-mailchimp) - [ **Hume AI to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/hume-ai-to-stripe) - [ **Hume AI to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/hume-ai-to-shopify) - [ **Hume AI to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/hume-ai-to-quickbooks-online) ## 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 is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](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 ## Hume AI and PostStack, answered ### ### What can start an automation from Hume AI? Any of Hume AI's 4 triggers in the catalog, including New Voice, Chat ended (instant), Chat started (instant) and Tool call (instant). Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PostStack when something happens in Hume AI? 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 Hume AI? Yes. When something happens in PostStack, your agent can act in Hume AI too. This page covers both directions: PostStack's triggers and Hume AI's actions are listed here as well. ### ### Do I have to build a connector for Hume AI 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 Hume AI 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.