--- title: "Connect CATS to Resend - APIANT.ai" description: "When \"Candidate Updated\" fires in CATS, your agent runs \"Add Contact to Segment\" in Resend." canonical: "https://apiant.ai/connect/cats-to-resend" --- # Connect CATS to Resend When **Candidate Updated** fires in [CATS](https://apiant.ai/connections/cats), your agent runs **Add Contact to Segment** in [Resend](https://apiant.ai/connections/resend). Describe the whole flow and it is built, tested on every scenario and kept running. CATS **14** triggers CATS **22** actions Resend **28** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want CATS and Resend 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 CATS can start in Resend - When **Candidate Updated** in CATS then **Add Contact to Segment** in Resend - When **Company Status Changed** in CATS then **Create Contact** in Resend 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 CATS and Resend ## Triggers and actions 14 triggers · 50 actions - Trigger **Candidate Updated** Triggers when a candidate is updated in CATS. - Trigger **Company Status Changed** Triggers when a company's status is changed in CATS. - Trigger **Company Updated** Triggers when a company is updated in CATS. - Trigger **Contact Status Changed** Triggers when a contact's status changes in CATS. - Trigger **Contact Updated** Triggers when a contact is updated in CATS. - Trigger **Custom Trigger** Triggers when the CATS event you choose fires (any record type: candidate, company, contact, job, pipeline, activity or user). - Trigger **Job Status Changed** Triggers when a job's status changes in CATS, returning the job with its previous and new status ids. - Trigger **New Activity** Triggers when a new activity (call, email, meeting, note) is logged in CATS. - Trigger **New Candidate** Triggers when a new candidate is created in CATS. - Trigger **New Company** Triggers when a new company is created in CATS. - Trigger **New Contact** Triggers when a new contact is created in CATS. - Trigger **New Job** Triggers when a new job order is created in CATS. - Trigger **New Pipeline** Triggers when a candidate is added to a job's pipeline in CATS. - Trigger **Pipeline Updated** Triggers when a pipeline (a candidate's placement on a job) is updated in CATS. - Action **Add Candidate to Pipeline** Adds a candidate to a job's pipeline in CATS and returns the new pipeline record's id. - Action **Change Company Status** Changes the status of a company in CATS, optionally choosing which status-change triggers fire. - Action **Change Contact Status** Changes the status of a contact in CATS, optionally choosing which status triggers fire. - Action **Change Job Status** Changes the status of a job in CATS, optionally choosing which status triggers fire. - Action **Create a Candidate** Creates a new candidate record in CATS with contact details, address, pay, skills and custom field values. - Action **Create a Company** Creates a new company record in CATS and returns its ID. - Action **Create a Contact** Creates a contact in CATS linked to a company and owner, and returns the new contact's ID. - Action **Create a Job** Creates a new job order in CATS and returns its ID. - Action **Create a Task** Creates a task in CATS, optionally linked to a candidate, contact, company or job and assigned to a user. - Action **Find a Candidate** Searches CATS candidates by a keyword such as a name or email and returns the matching candidate records. - Action **Find a Company** Searches CATS companies by text and returns the matching companies. - Action **Find a Contact** Searches CATS contacts by text and returns the matching contacts. - Action **Find a Job** Searches CATS jobs by text and returns the matching jobs. - Action **Find a User** Finds CATS users whose email, username or name matches the search term. - Action **Get Activity** Returns a single CATS activity (call, email, meeting, note) by its ID, including the record it is logged against. - Action **Get Pipeline** Returns a single pipeline — a candidate's placement on a job — including its status, workflow and rating. - Action **Get Task** Returns a single CATS task by its ID, including its description, priority, due date, assignee, completion state and the record it concerns. - Action **Log Candidate Activity** Logs an activity (call, email, meeting or other) against a candidate in CATS. - Action **Update Candidate** Updates an existing candidate in CATS, including name, contact details, pay, availability and custom field values. - Action **Update Company** Updates an existing company in CATS, including its name, owner, contact details, address and custom field values. - Action **Update Contact** Updates an existing contact in CATS, including name, owner, company, title, contact details, address and custom field values. - Action **Update Pipeline** Updates the rating of a candidate's pipeline record on a job in CATS. - Action **Add Contact to Segment** Adds a contact to a Resend segment. You can identify the contact by its ID or email address. - Action **Add Suppression** Adds an email address to your Resend suppression list so no further mail is sent to it. - Action **Cancel Email** Cancels a scheduled Resend email that has not been sent yet. - Action **Create API Key** Creates a new Resend API key. The key itself is returned once, so store it right away. - Action **Create Contact** Creates a contact in Resend. Returns the new contact's ID. - Action **Create Domain** Adds a sending domain to Resend. Returns the DNS records you need to add at your domain host to verify it. - Action **Create Segment** Creates a new segment in Resend for grouping contacts. - Action **Delete API Key** Deletes a Resend API key so it can no longer be used. - Action **Delete Contact** Deletes a contact from Resend. You can identify the contact by its ID or email address. - Action **Delete Domain** Removes a sending domain from Resend. - Action **Delete Segment** Deletes a segment from Resend. The contacts themselves are not deleted. - Action **List API Keys** Returns the API keys on your Resend account, with each key's name and when it was last used. The key values themselves are never returned. - Action **List Contacts** Returns the contacts in your Resend account, optionally limited to one segment. - Action **List Domains** Returns the sending domains on your Resend account and each one's verification status. - Action **List Segments** Returns the contact segments in your Resend account. - Action **List Sent Emails** Returns the emails you have sent through Resend, newest first, with each email's id, sender, recipients, subject, send time and latest delivery event. Supports paging before or after a given email id. - Action **List Suppressions** Returns the email addresses on your Resend suppression list, showing for each one the address, why it was suppressed (bounce, complaint or added manually), the email that triggered it and when it was added. - Action **Remove Contact From Segment** Removes a contact from one of your Resend segments. Identify the contact by its ID or by its email address, and name the segment to take it out of. The contact itself is not deleted. - Action **Remove Suppression** Takes an email address off your Resend suppression list so you can send to it again. Identify it by the suppression ID or by the email address itself. - Action **Retrieve Contact** Returns one contact from your Resend audience, including their name, email address, whether they have unsubscribed, when they were added, and any custom properties stored on them. Look the contact up by its ID or by its email address. - Action **Retrieve Domain** Returns one of your Resend sending domains, including its name, verification status, sending region, tracking settings and the DNS records it needs with each record's current status. - Action **Retrieve Segment** Returns one of your Resend segments by its ID, with the segment's name and when it was created. - Action **Retrieve Sent Email** Returns one email you sent through Resend, with its sender, recipients, subject, HTML and text body, tags, send time and latest delivery event. - Action **Send Batch Emails** Sends up to 100 emails through Resend in a single call. Give it a list of emails, each with a sender, recipients, subject and body, and it returns the id of every email it created. - Action **Send Email** Sends an email through Resend. Set the sender, recipients and subject, provide an HTML or plain text body, and optionally add CC/BCC, reply-to, attachments, tags or a send time. - Action **Update Contact** Updates a contact in your Resend audience. Identify the contact by ID or email address, then change the name, the subscribed/unsubscribed state, or the custom properties. Anything you leave blank stays as it is. - Action **Update Email** Reschedules an email you already queued in Resend, moving it to a new send date and time. Only emails that have not gone out yet can be changed. - Action **Verify Domain** Asks Resend to re-check the DNS records for one of your sending domains and start verifying it. Verification runs in the background, so the domain shows as pending until it finishes. ## Each app on its own - [ **CATS** CATS is an applicant tracking system. Manage the entire tracking process from posting jobs to leading job...](https://apiant.ai/connections/cats) - [ **Resend** Resend is the email API for developers. It's designed for you to build, test, and send transactional and...](https://apiant.ai/connections/resend) Reviews ## What our customers say ## More from CATS - [ **CATS to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/cats-to-hubspot) - [ **CATS to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/cats-to-salesforce) - [ **CATS to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/cats-to-slack) - [ **CATS to Google Sheets** Google Sheets](https://apiant.ai/connect/cats-to-google-sheets) - [ **CATS to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/cats-to-gmail) - [ **CATS to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/cats-to-google-calendar) ## More into Resend - [ **Documenso to Resend** Documenso is an open-source digital signing platform.](https://apiant.ai/connect/documenso-to-resend) - [ **Google BigQuery to Resend** BigQuery is Google's serverless and highly scalable enterprise data warehouse, designed to make all your...](https://apiant.ai/connect/google-bigquery-to-resend) - [ **HubSpot to Resend** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-resend) - [ **Salesforce to Resend** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-resend) - [ **Slack to Resend** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-resend) - [ **Google Sheets to Resend** Google Sheets](https://apiant.ai/connect/google-sheets-to-resend) Questions ## CATS and Resend, answered ### ### What can start an automation from CATS? Any of CATS's 14 triggers in the catalog, including Candidate Updated, Company Status Changed, Company Updated and Contact Status Changed. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Resend when something happens in CATS? Any of Resend's 28 actions, including Create API Key, Create Contact, Create Domain and Create Segment. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Resend to CATS? Resend has no triggers in the catalog today, so automations start in CATS. If you need the other direction, ask: your agent reads Resend's API documentation and adds it. ### ### Do I have to build a connector for CATS or Resend? 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 CATS and Resend 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.