Blog

GTM engineering, agents, and data

Guides, comparisons, and strategies for teams building pipeline with code.

Guide12 minMay 2026

GTM engineering with Claude Code: the complete guide

Define GTM engineering. Why code-first GTM is replacing manual ops. How Claude Code + gtmcli replaces the old workflow.

Guide10 minMay 2026

How to build lead lists in Claude Code with gtmcli

Step-by-step. Install gtmcli, connect MCP, describe your ICP, agent builds the list. Full workflow from prompt to CSV.

Guide10 minMay 2026

Why GTM engineers are moving from Clay to Claude Code

Where Clay falls short for technical GTM engineers. How Claude Code + gtmcli replaces Clay workflows with code.

Guide9 minMay 2026

Claude Code for outbound sales: build verified prospect lists in minutes

The old way takes hours per account. Claude Code + gtmcli does it in minutes. Step-by-step with real prompts and credit costs.

Guide8 minMay 2026

Using MCP servers for sales prospecting

What MCP is, why it matters for GTM teams, and how to connect gtmcli as a tool for your AI agent.

Guide9 minMay 2026

Using Codex for GTM engineering: automate your pipeline

How to connect gtmcli to Codex. Build a pipeline: account research, contact finding, email validation, CRM load.

Guide11 minMay 2026

Build a sales pipeline with AI agents: a practical guide

The full pipeline from ICP to sequence-ready list. Each step mapped to a gtmcli tool. Manual (40 hours) vs agent (20 minutes).

Guide8 minMay 2026

How to validate emails with AI agents

Why validation matters for outbound. The old way vs the new way. gtmcli validate commands and MCP tool usage.

Guide9 minMay 2026

How to enrich your CRM data with Claude Code

Your CRM is full of bad data. 30% of emails decay annually. Fix it with Claude Code + gtmcli. Step-by-step with credit cost math.

Guide10 minMay 2026

The GTM engineering stack in 2026

The modern GTM stack: data layer, orchestration, CRM, sequencing. Why the stack is shifting from GUI tools to code-first.

Comparison8 minApril 2026

gtmcli vs Hunter.io

Hunter charges $0.059 per email. gtmcli charges $0.002. Pricing, accuracy, and agent support compared.

Comparison10 minApril 2026

gtmcli vs Apollo.io

Apollo charges per seat per month. gtmcli charges per result. The real cost for email data compared.

Comparison10 minApril 2026

gtmcli vs LeadMagic

Comparing pricing, accuracy, speed, and features. Find out which is right for your team.

Comparison9 minApril 2026

gtmcli vs ZeroBounce

Pay-for-results model, email finder, and CRM integrations compared.

Comparison8 minApril 2026

gtmcli vs Findymail

Findymail costs $0.049 per email. gtmcli costs $0.008. Pricing and CLI/MCP support compared.

Comparison8 minApril 2026

gtmcli vs Prospeo

No per-seat pricing, better agent integration. Pricing and accuracy compared.

Comparison8 minApril 2026

gtmcli vs Wiza

Wiza is tied to LinkedIn. gtmcli works everywhere. Pricing and flexibility compared.

Technical12 minApril 2026

The complete guide to email validation in 2026

How verification works, why syntax checks are not enough, and how to implement it in your GTM stack.

Technical8 minApril 2026

Catch-all emails explained

Catch-all domains accept every email address. What that means for outbound and how to handle it.

Technical15 minApril 2026

Email deliverability in 2026

Why your emails land in spam and how to fix it. SPF, DKIM, DMARC, list hygiene, and validation strategies.

Integration7 minApril 2026

How to use gtmcli as an email finder in Clay

Step-by-step integration guide. Plug gtmcli into Clay via HTTP API for automated prospecting.