We stopped renting an AI SDR. We built our own.
YoYoGTM finds the right people, warms them up on LinkedIn, writes to them one by one, follows up by email and hands every reply back for a human answer. It runs our own outbound every day, from a dashboard, a REST API, or straight inside Claude.
Build vs buy
Why we built it instead of buying one
AI SDR tools charge per seat, per sender or per contact, and the good ones keep your data and your playbook inside their walls. We run outbound for ourselves and for clients, across several sending accounts. Paying a seat fee for every one of them, every month, for a tool we could not change, made no sense for a team that builds software for a living.
| Tool | Plan | Per month | Per year |
|---|---|---|---|
| GojiberryAI SDR, LinkedIn | Pro | $99 | $1,188 |
| PumpGTMAI SDR via MCP | Starter, per LinkedIn account | $75 | $900 |
| HeyReachLinkedIn automation | Growth, per sender | $79 | $948 |
| lemlistEmail + LinkedIn sequences | Multichannel, per user | $109 | $1,308 |
| 11x (Alice)Autonomous AI SDR | Growth (reported) | ~$3,750 | ~$45,000 |
| YoYoGTMour own, on our own server | LinkedIn access via Unipile, up to 10 accounts | ~$55 | ~$660 |
Vendor list prices checked on 13 November 2026 from each vendor's pricing page (11x is a reported figure; it does not publish prices). Our figure is the one fixed software cost we pay. AI writing and data lookups are pay-as-you-go on top, and the server is one we already run for other tools.
No seat tax
Add a sender, a campaign or a teammate without a new line on the invoice. Five sending accounts cost the same as one.
Our playbook, our data
Every person, message, reply and result sits in our own database. Nothing is locked in someone else's dashboard when we leave.
Rules we actually want
Verified-only email, high-income markets only, a do-not-contact list checked before every step. Off-the-shelf tools could not do all three.
Ships in an afternoon
When we want a feature, we write it. Sender pools, AI-picked calls to action and bounce detection all went live in days.
What we built
A complete outbound product, not a script
YoYoGTM is a full product: a web app, a sending engine, a review queue, a reply inbox, an API and an MCP server. It is the same kind of system we build for clients, running on our own pipeline first.
The overview
One screen for the whole funnel: people in sequences, LinkedIn invites, acceptance rate, replies and meetings booked, with a live activity feed of every visit, like, invite and email.
Signals, not spray
Campaigns start from buying signals: a new leader, a hiring spree, a competitor shipping an MCP server, a funding round. 99 signals in the catalog, each mapped to where the data comes from.
A human review queue
Every person found is scored against the ideal customer profile with a reason. Approve or reject in one click, or let autopilot decide above a score you set.
LinkedIn-first sequences
A visual sequence editor: profile visit, like a post, connect, message, then email two days later if there is no reply. AI writes the intro, hook and call to action for each person, and you preview exactly what will send.
Replies come back to you
Every reply lands in one inbox with a drafted answer. Nothing is ever sent on a reply without a person pressing send.
Run it from Claude
The 14-tool MCP server means you can plan a campaign, review people and answer replies by talking to Claude. It signs in with OAuth, the way Claude's connector directory expects.
Screenshots use demo data. Every name, company and email in them is a sample.
How it works
The engine behind every message
Outbound fails on the boring parts: deliverability, pacing and bad data. That is where most of the engineering went.
- FindPlain-English campaign brief in, people out. Search and enrichment run through Clay.
- ScoreClaude scores fit against your ICP and explains why. Famous or oversized companies are marked down.
- VerifyEmails are checked by ZeroBounce, then Findymail for catch-alls. No verified address, no email.
- Warm upProfile visit and a like before the invite, paced inside daily LinkedIn limits.
- WriteOne AI writing pass per person per step, cached, so the preview is exactly what sends.
- SendEach person gets the least-busy inbox in the pool and keeps it for the whole thread.
- Route repliesLinkedIn and Gmail replies are polled, bounces caught, meetings matched from Cal.com.
Engineering
How we built it
Senior judgment plus Claude Code. The first working version, from empty folder to live on our server, took days, not months.
One registry, three surfaces
Every action is defined once. The MCP server, the REST API and the dashboard all call the same 14 operations, so they can never drift apart.
Sandbox by default
Every new workspace starts in sandbox mode. Nothing reaches a real person until the owner turns it off, and every write tool is marked as destructive for Claude.
Bounces caught everywhere
Gmail files bounce notices in their own threads, so a scanner checks every mailbox every 30 minutes and re-checks right before each follow-up.
API, MCP, OAuth, plugin
A public REST API with an OpenAPI spec, idempotency keys, revocable API keys, an OAuth 2.1 server for Claude and a Claude Code plugin.
Built for you
Hiring someone to build outbound? This is the proof.
These are the kinds of projects we are asked to build every week. YoYoGTM is a working answer to each of them, already running.
Build and run our AI outbound engine, LinkedIn plus cold email
This is that engine: LinkedIn steps, email follow-ups, pacing and reply handling in one system.
Clay + n8n LinkedIn outreach automation with signal-based personalization
Signals pick the people, Clay enriches them, and Claude writes a first line from what it found.
Build a cold email engine inside our product, with a sending platform API
YoYoGTM is a product with an API. We can build the same engine into yours.
GTM engineer to automate prospecting, scoring and follow-up
Find, score, verify, write and route: every step here is automated and logged.
Build an AI agent our team can drive from Claude
Our MCP server lets a team run outbound by talking to Claude, with human approval on anything that sends.
Cold email infrastructure with near-zero bounces
Verified-only sending, sender pools and bounce scanning are built in, not bolted on.
Your turn
Want an outbound engine you own?
Tell us how you sell today. In 30 minutes we will map the smallest version of this system that would pay for itself, on your tools and your data.
Free 30-minute call. Honest take, even if that means “you don't need us yet.”
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