Email + LinkedIn API for AI sales agents

The problem

A modern AI sales agent isn't a single send — it's a stateful conversation across two channels.

Day 0: it finds a qualified lead, sends a personalized email or LinkedIn invite. Day 3: it checks whether the lead engaged. If they accepted on LinkedIn, it follows up there. If they replied to the email, it exits the cadence and pings a human. If they did neither, it nudges with a different angle.

Doing this from scratch means stitching together: an email API, an inbox-receive system, a LinkedIn automation tool, a reply-detection layer, a session-router for LinkedIn rate limits, a cadence runtime, webhook delivery, signal verification. That's six vendors and the integration glue between them.

What MyAgentMail gives you

One API key, both channels, every primitive a real sales agent needs:

• Provisioned email inbox with custom domain ([email protected]), full send + receive over SMTP/IMAP, threading, drafts, bounce + complaint tracking.
• LinkedIn outreach via real LinkedIn accounts the customer connects — invitations, DMs, post engagement signals, intent monitoring across keyword searches and engagement on specific profiles.
• Reply detection — message.received webhook fires when a lead replies; linkedin.message.received when they DM back. Cadence runtime exits the sequence automatically.
• Open + click tracking — message.opened, message.clicked events fire so the agent can branch on engagement signals (gate on clicks, not opens — opens are noisy due to Apple Mail Privacy Protection).
• Server-side cadence engine — define your sequence once (linkedin_connect → wait → email → wait → linkedin_message), enroll a lead, we fire the steps with branch conditions like after_accept and no_reply_to_prev. Daily send caps + business-hours guard built in.
• Multi-tenant from day one — workspaces and scoped API keys per customer, so SaaS-on-top-of-MyAgentMail is supported out of the box.

Sketch

import { MyAgentMail } from "myagentmail";
const mam = new MyAgentMail({ apiKey: process.env.MYAGENTMAIL_KEY });

// 1. Provision an inbox for the agent.
const inbox = await mam.inboxes.create({ username: "scout", domain: "yourcompany.com" });

// 2. Connect a LinkedIn account (or use one already connected).
const session = await mam.linkedin.sessions.list().then((r) => r.sessions[0]);

// 3. Define a sequence — invite, wait 3d for accept, DM, wait 4d, fall back to email.
const cadence = await mam.cadences.create({
  name: "Inbound interest follow-up",
  sessionId: session.id,
  inboxId: inbox.id,
  steps: [
    { kind: "linkedin_connect", message: "Hi {{name}} — saw your post on outbound..." },
    { kind: "wait", days: 3 },
    { kind: "linkedin_message", condition: "after_accept", message: "Thanks for connecting..." },
    { kind: "wait", days: 4 },
    { kind: "email", condition: "no_reply_to_prev", subject: "{{name}}, did this miss you?" },
  ],
});

// 4. Enroll qualified leads. The runtime fires steps server-side, fires
//    cadence.step.fired / cadence.lead.replied / cadence.lead.completed
//    webhooks to your agent's handler.
await mam.cadences.enroll(cadence.id, [
  { name: "Alice Chen", email: "[email protected]", linkedinUrl: "https://linkedin.com/in/alice-chen" },
]);

Why this beats DIY

Saves you ~3-4 months of engineering for the same baseline functionality.

Pricing

Email module: $5/month. LinkedIn add-on starts at $29/month for the Solo tier (2 connected sessions, 100 actions/day, 3 intent signals). 7-day free trial on both. See /pricing.

Related

• Cold outreach agent (use case)
• Multi-tenant SaaS (use case)
• MyAgentMail vs Resend
• MyAgentMail vs Unipile
• The agent-experience playbook