Resend

What you can do

2 actions, each one call from a workflow or a server function. Triggers come from your app: a row changing, a schedule or a webhook.

• Send Emailsend_email
  Send a text or HTML email
• Custom API Callcustom_api_call
  Make a custom API call to a specific endpoint

Set it up

About two minutes, once per project or once for the whole workspace.

1. Open Integrations in the builder

   Backend panel, Integrations tab, then Resend. To connect it for every project, use Workspace settings, Integrations.

2. Add your credentials

   An API key (or token) from your Resend account, pasted once. It is stored encrypted and only read on the server when an action runs.

   • API key From Resend's settings
3. Call an action

   From a workflow, by integration id and action name. The call answers with success, output and, when it fails, the reason.

   // .workflow.js (native ctx)
   export async function run(ctx) {
     const res = await ctx.integrations.invoke("resend", "send_email", {
       "to": [],
       "from_name": "<sender name>",
       "from": "<sender email (from)>",
       "subject": "<subject>",
       "content_type": "<content_type>",
       "content": "<content>"
     });
     if (!res.success) throw new Error(res.error);
     ctx.log.info("Resend answered", { output: res.output });
   }

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