Autonomous AI SDR

Your next sales hire
isn't human.

WarmLine researches your prospects in real time, writes outreach no one would guess came from software, handles every reply, and puts confirmed meetings on your calendar โ€” without you touching a thing.

No credit card required ยท Takes 2 minutes ยท First meetings within a week

7 days
Average time to first booked meeting across early pilot accounts
< 4 min
Average reply-handling time from inbound reply to response sent
3 industries
Currently serving consulting, SaaS, and professional services founders pilot cohort, early access

See WarmLine in Action

From defining your ideal customer to booked meetings โ€” here's what WarmLine does for you, automatically.

Ideal Customer Profile
Fintech & Financial Services
CTO VP Engineering Head of Product
50โ€“200 employees
Series A+ Recent hiring New product launch
Live Research Feed
๐Ÿ”
Found NovaPay โ€” Series B fintech, 120 employees, launched new API product last week
2 seconds ago
๐Ÿ‘ค
Identified Rachel Kim, CTO โ€” promoted 3 months ago, hiring 2 backend engineers
4 seconds ago
๐Ÿ“ฐ
Company news: NovaPay raised $18M Series B โ€” expanding into enterprise payments
6 seconds ago
โœ…
Prospect brief complete. Email draft ready โ€” personalized to NovaPay's expansion
8 seconds ago
๐Ÿ”
Scanning next prospect: Ledgr Finance โ€” 85 employees, compliance automation...
just now
Personalized Outreach
To: Rachel Kim <rachel@novapay.com>
Congrats on the Series B โ€” quick thought on your enterprise push
Hi Rachel,

Saw the $18M raise โ€” congrats. Expanding into enterprise payments is a big move, especially with 2 backend engineers still ramping.

The fintech CTOs I work with at your stage usually find that inbound alone can't fill an enterprise pipeline. We help companies like NovaPay book 15โ€“20 qualified meetings/month with engineering and product leaders โ€” without you or your team writing a single email.

Worth a 15-minute call this week?

Best,
[Your Name]
Reply Handling & Meetings
Rachel Kim โ€” NovaPay
"This is interesting timing โ€” we've been looking at exactly this. Can we do Thursday?"
Meeting Request
Tom Vance โ€” Ledgr Finance
"Tell me more about how this works for compliance-focused products."
Interested
Priya Sharma โ€” PayStream
"Not the right time โ€” we just hired a full SDR team last quarter."
Not Now
James Cole โ€” FinOps AI
"Sounds interesting. Let me loop in our Head of Growth."
Warm Lead
Built for Small Businesses

Everything an SDR does.
None of the overhead.

The full output of a sales hire โ€” without the salary, ramp time, or management overhead.

200+
Emails / day
Each individually researched & personalized
$299/mo
Starting price
vs. $75K+/yr for a human SDR
24/7
Always on
No sick days, holidays, or Slack distraction
0
Ramp time
Live in under 10 minutes, not 3 months
Works alongside your existing tools
โœ‰๏ธ Gmail
๐Ÿ“ง Outlook
๐Ÿ”ถ HubSpot
โ˜๏ธ Salesforce
๐Ÿ“… Calendly

Built for Small Businesses

Everything an SDR does. None of the overhead.

200+
Emails per day
$299
Per month
24/7
Always on
0
Ramp time
FeatureHuman SDRWarmLine
Monthly cost$4,000โ€“6,000$299
Emails/day30โ€“50200+
Availability9โ€“5, weekdays24/7/365
Ramp time2โ€“3 monthsInstant
PersonalizationGeneric templatesAI-researched

Works alongside your existing tools

๐Ÿ“ง Gmail๐Ÿ“ฌ Outlook๐ŸŸ  HubSpotโ˜๏ธ Salesforce
Early Results

What happens in the first 30 days

6 meetings booked
in the first week

A 3-person B2B consulting firm that had been growing entirely through referrals. Zero outbound infrastructure. Within 7 days of setup, six qualified calls were on the calendar โ€” without the founder writing a single email.

B2B Consulting ยท 3-person firm
14 SQLs generated
in the first month

A seed-stage SaaS founder targeting mid-market ops teams. No SDR, no outbound tool in use. WarmLine built the prospect list, wrote every email individually, and handled all replies. 14 qualified opportunities in 30 days.

SaaS ยท Seed-stage founder
Dormant pipeline reactivated
in 72 hours

A solo professional services founder with 80+ contacts who'd gone cold over 18 months. WarmLine re-engaged the list with research-backed outreach. Three dormant leads replied within three days. Two became active deals.

Professional Services ยท Solo founder

Every founder knows outbound works.
Almost none of them do it.

โฐ

No time to run it yourself

Outbound done right takes 3-4 hours a day. You're already wearing six hats. It never makes the list.

๐Ÿ’ธ

SDRs are expensive and slow

$70K salary. $15K in tools. Three months to ramp. And statistically, they're gone in fourteen months.

๐Ÿ”ง

The tools still need an operator

Apollo, Instantly, Clay โ€” they're powerful if someone's running them full-time. You don't have that someone.

WarmLine isn't a tool you run. It's the rep you never have to manage.

From setup to booked meetings in 4 steps

1

Define your ideal customer โ€” once

Tell WarmLine who you sell to: industry, company size, job titles, signals. This is a 10-minute conversation, not a configuration nightmare. You won't touch it again.

2

WarmLine builds and researches your pipeline

Not a database pull. Real research โ€” company news, recent hires, product launches, pain signals. Every prospect gets a full brief before a single email is written.

3

Every email is written from scratch

No templates. No mail merge. Each message is crafted for that specific person based on what the research surfaced. The kind of email that gets replies because it doesn't read like a sequence.

4

Replies handled. Meetings confirmed.

WarmLine reads every reply, classifies intent, and continues the conversation. Interested prospects get follow-up. Meetings get proposed, confirmed, and put on your calendar. You show up.

Why it actually works

WarmLine isn't magic. It's engineered. Here's what's running under the hood.

Real-Time Research

Prospect intelligence built fresh

WarmLine doesn't pull from a stale database. For each prospect, it runs live research โ€” company news, leadership changes, funding rounds, recent content. Every brief is current. Every email references something real.

Intent Classification

It understands what replies actually mean

Not every reply is a yes. Not every "not now" is a no. WarmLine reads the signal behind the words โ€” positive, negative, request-for-info, timing objection โ€” and routes accordingly. Nothing falls through the cracks.

Multi-Step Reply Handling

Conversations, not just responses

One reply rarely closes a meeting. WarmLine handles the back-and-forth autonomously โ€” answering questions, addressing objections, following up when prospects go quiet. The thread keeps moving without you in it.

Calendar Negotiation Logic

Proposes times, handles the ping-pong

When a prospect is ready to meet, WarmLine proposes times from your availability, handles counter-proposals, confirms the slot, and sends the invite. You open your calendar and the meeting is there.

Autonomous Execution

Runs without oversight

There's no dashboard you need to check every morning. WarmLine works on its own schedule โ€” prospecting, writing, sending, replying, booking. It runs while you're building your product. While you're sleeping. Always.

See WarmLine in Action

A full sequence โ€” research, personalized outreach, reply handling, booked meeting. Pick an industry to see how it plays out.

Prospect identified

Meridian Growth Partners

Sarah Chen, Head of Business Development

B2B Consulting ยท 12 employees ยท Austin, TX

Research brief: "Recently posted about scaling outbound โ€” no dedicated sales hire yet. Two new service lines launched in Q4. Team is stretched."

Outreach sent

Reply handled

Meeting booked

Intro Call โ€” Meridian Growth Partners

Date: Thursday, March 6 ยท 2:00 PM CT

Attendees: Sarah Chen, [You]

Status: Calendar invite sent. Reminder queued.

โœ“ Confirmed
Start Your 14-Day Free Trial

No credit card required ยท First meetings within a week

Why WarmLine is an employee, not a tool

Most AI sales software gives you a database and a template editor. Then it wishes you luck.

Tools require operators. WarmLine doesn't.

It prospects on its own. Describe your ideal customer once. WarmLine builds targeted lead lists continuously โ€” no CSV uploads, no credit systems, no database subscriptions bolted on top.

It writes like someone who actually did the homework. Every email comes from real research on that specific company. Not personalization tokens โ€” actual context. The kind that gets responses.

It handles the full conversation. When prospects reply, WarmLine reads the intent and responds accordingly. Interested? It moves them forward. Timing off? It follows up in the right window. Questions? It answers them. Nothing sits unanswered.

It books the meeting and handles logistics. Calendar integration, time proposals, back-and-forth negotiation, confirmations, reminders. The only thing you do is show up.

A tool gives you features. An employee gives you outcomes.
WarmLine delivers booked meetings.

A note from the founder

I built WarmLine because I watched great founders lose to worse products โ€” not because they had a bad pitch, but because they couldn't maintain a consistent pipeline. Outbound is winnable. Most small businesses just don't have the bandwidth to do it right. WarmLine is the AI employee that levels that playing field. Every founder deserves a sales pipeline that runs while they're building. That's what we're here for.

W
Founder, WarmLine
Building the autonomous sales layer for small business

WarmLine vs. hiring an SDR

A fully-loaded SDR costs $75K/yr before tools. WarmLine replaces the entire stack for under $4K.

Human SDR WarmLine
Annual cost $60โ€“80K salary + benefits $3,588โ€“4,788/yr ($299โ€“399/mo)
Tools required Apollo, Outreach, LinkedIn Sales Nav (~$15K/yr) Everything built in. Zero addons.
Ramp time 2โ€“3 months before they're productive Live in under 10 minutes
Emails per day 50โ€“80, mostly templated Hundreds โ€” each individually researched
Hours worked per week 40 (minus Slack, meetings, lunch, Fridays) 168. Every week.
Reply handling Inconsistent. Depends on the day. Instant, intent-classified, every time
Vacation / sick days 15โ€“25 per year Zero
Scaling Hire another one ($$$) Add a campaign
Retention risk Average SDR tenure: 14 months Not a concept that applies

WarmLine costs less per month than a single day of an SDR's salary.

Built to run without babysitting

๐Ÿค–

Powered by frontier AI โ€” same model class behind the most advanced language tools in the world. Research quality that reads like a human who actually did the work.

๐Ÿ”’

Prospect data stays yours โ€” encrypted at rest, never used to train models, never shared. Enterprise-grade security without the enterprise contract.

โœ“

No lock-in โ€” month-to-month pricing, cancel anytime. We earn your renewal by delivering meetings, not by trapping you in an annual contract.

Your data is yours. Full stop.

๐Ÿ›ก๏ธ
SOC 2-aligned processes
Built to enterprise security standards from day one. Access controls, audit logging, incident response.
๐Ÿ”
Encrypted at rest & in transit
AES-256 encryption at rest. TLS 1.2+ in transit. Every piece of data, every connection.
๐Ÿšซ
Zero model training on your data
Your prospect data, your email content, your replies โ€” none of it trains any AI model. Ever.
๐Ÿ”’
No shared datasets
Your ICP, your prospect lists, your results. No pooling with other accounts, no data sharing across customers.
๐Ÿข
Isolated per workspace
Each customer account is fully isolated. Your data never touches another company's workspace.

Know exactly what you're getting

WarmLine is a category of one. This is how it's different from everything else you've tried.

WarmLine is not
  • a database
  • a sequence tool
  • a mail merge
  • a template engine
  • a Chrome extension
  • a VA with AI assist
WarmLine is
  • an autonomous outbound employee
  • writes every email from scratch
  • researches every prospect individually
  • handles replies and books meetings
  • operates continuously without supervision

Common questions

Straight answers. No marketing fluff.

Mailchimp sends bulk email blasts to a list you already have. HubSpot is a CRM that starts at $800+/month and still requires a human to write and send the emails.

WarmLine does something neither of them does: it finds your prospects from scratch, researches each one individually, and writes a personalized email for every single contact โ€” no list required, no template, no human in the loop. It's not a broadcast tool. It's an employee.

No โ€” and that's the whole point. WarmLine doesn't use templates. Every email is written after the AI reads the prospect's LinkedIn, website, recent posts, and company news. The result reads like a human who actually did the research.

Spam is what happens when you send the same message to 10,000 people. WarmLine sends 10,000 different messages to 10,000 different people. Recipients reply because it's relevant, not because they were tricked.

WarmLine works alongside your CRM โ€” it doesn't replace it. Your CRM manages deals in the pipeline. WarmLine fills the top of the funnel so there are more deals to manage.

Think of it as the prospecting and outreach layer that feeds your existing workflow. When a prospect replies or books a meeting, that lead lands in your CRM like any other.

Most users see first replies within 48 hours of launching their first campaign. Meetings typically follow within the first week.

Setup takes under 10 minutes: connect your email, define your ICP, approve the first batch of prospects. WarmLine handles the rest from there.

Yes. Month-to-month, no annual contracts, cancel in one click from your account settings. We don't lock you in because we don't need to โ€” WarmLine earns its renewal by delivering pipeline.

Your competitors are hiring SDRs.
You're deploying one.

Start your free trial. Your first meetings are days away.

Start Free Trial โ€” No Credit Card Required

Takes 2 minutes to set up. First meetings within a week.