The AI multi-channel outbound playbook (how 25 YC companies run GTM in 2026)

Outbound in 2026 looks nothing like outbound in 2023. The founders getting real pipeline, the 25 Y Combinator companies we run GTM for, aren't juggling twenty tools or buying a bigger lead list. They do three things, and they do them from inside their AI. This is the full playbook, with the short videos that show each part.

The three moves that actually work

Everything below comes down to three secrets, laid out in 48 seconds here: run it from your AI with MCP, use every channel, and iterate on the data. Here's each in depth.

1. Run the whole thing from your AI (MCP-first)

If you've been doing outbound the old way, you're probably bouncing between ten or twenty tools. The shift is to give Claude, Codex or ChatGPT the power to do GTM for you. This short shows the idea: one tool connects your LinkedIn, email and X outbound and runs every sequence from inside your AI.

PumpGTM is MCP-first. Connect it once at mcp.pumpgtm.com, and your AI has the context and tools of a whole GTM team: find buyers, draft and send messages, read replies, all without opening a dashboard. You can copy the exact prompt that sets it up, or read what PumpGTM is end to end.

2. Use every channel, not just one

One channel misses too many people. Some buyers never open their inbox; some never open LinkedIn that week. So you reach the same person across LinkedIn, email and X, in a coordinated sequence, so your name shows up more than once. That repetition is what turns a cold name into a reply.

The full method is in how to get your next 10 customers with multi-channel outbound, and the mechanics of running two channels on one list are in LinkedIn and email on the same lead list. It's the same cross-channel consistency behind a $4B company's outbound.

3. Iterate on the data every week

This is the part that compounds. Every message, every reply, every link click is tracked as data, so each week you can see which message, which channel and which segment is working, and double down. Without it you're guessing; with it, four weeks of small iterations turn into real customers.

Here's how that produced 25 YC-backed customers in four weeks, starting from a free list of 11,000 YC founders.

It starts with the right people

None of this matters if the targeting is wrong. Finding the right buyers is half the job and the half most tools skip. Start from how to find your ICP on LinkedIn, then score leads before you reach out so you're spending touches on people who can actually buy.

Watch the series

The short videos behind this playbook, each under a minute:

• GTM secrets of 25 YC companies: MCP, X & data
• The right way to run outbound GTM in 2026
• How I got 25 YC customers in 4 weeks
• Find leads while you sleep (the MCP)
• Automate thousands of leads a week

The playbook in one line

Run outbound from your AI, reach each buyer on LinkedIn, email and X, and let the data tell you what to change every week. If you want it running on your own product, start at pumpgtm.com.

Questions founders ask

What does "MCP-first" mean? PumpGTM runs as an MCP server, so you drive the whole GTM motion from Claude, ChatGPT, Cursor or Codex, finding buyers, sending LinkedIn, email and X messages, reading replies, instead of logging into a dashboard.

Why multi-channel instead of just LinkedIn or just email? Any single channel misses a large share of people who would have replied. Reaching the same person across LinkedIn, email and X, in order, makes your name familiar and lifts the reply rate.

What's the free list of 11,000 YC founders? A lead list inside PumpGTM, free to use, with each founder's LinkedIn and X resolved, a fast way to start if you sell to startups.

How do I run this without a GTM team? You drive it from your AI. Copy the prompt, connect the MCP, and it finds people, writes a personal message for each, and sends from your own accounts.