Blog
Guides, comparisons, and strategies for teams building pipeline with code.
Turn an Apify Actor dataset into a recurring, enriched, deduplicated, and reviewable GTM workflow without losing source evidence.
An operator-first comparison of Clay and Apollo across data, enrichment, sequencing, workflow design, automation, and agent access.
Use Codex to construct the research, enrichment, validation, scoring, personalization, review, and measurement layers of a cold-email workflow.
A practical shortlist of B2B data enrichment tools, organized by the job they do and the evidence you should demand in a pilot.
Step-by-step guide to building a sales pipeline with AI agents. From ICP definition to sequence-ready contacts in 20 minutes. Real commands, real costs, real results.
Step-by-step guide to building lead lists inside Claude Code using gtmcli as an MCP server. From ICP definition to verified CSV export in minutes.
How to use Claude Code and gtmcli for outbound sales prospecting. Build verified prospect lists in minutes instead of hours. Real prompts, real costs, real workflows.
A fair comparison of Clay and Claude Code for GTM workflows. Where Clay falls short for technical teams, and how code-first enrichment with gtmcli replaces the GUI.
How to use OpenAI Codex for GTM engineering. Connect gtmcli to Codex, build automated pipelines for account research, contact finding, email validation, and CRM loading.
Step-by-step guide to enriching CRM data with Claude Code and gtmcli. Export contacts, validate emails, find replacements for invalid ones, and write results back. Includes credit cost math.
The definitive guide to GTM engineering in 2026. Learn why code-first go-to-market is replacing manual ops and how to use Claude Code with gtmcli to build your GTM stack.
Map the modern GTM engineering stack in 2026. From GUI tools to code-first agents. Compare the 2024 stack (Clay + Apollo + ZoomInfo) vs the 2026 stack (Claude Code + gtmcli + CRM).
How to use Model Context Protocol (MCP) servers for sales prospecting. Connect gtmcli as an MCP server in Claude Code and build automated prospecting workflows.
Learn how to validate emails using AI agents like Claude Code. Replace manual CSV uploads with inline agent-driven validation. Covers statuses, batch processing, and MCP tool usage.
Apollo.io is a full sales platform, but for email data it is expensive and bloated. See how gtmcli delivers 3x cheaper email finding with real-time verification and no per-seat pricing.
A detailed comparison of gtmcli and Findymail for email finding and verification. gtmcli is 6x cheaper per email, supports AI agents via CLI and MCP, and only charges for results.
A detailed comparison of gtmcli and Hunter.io for email finding and verification. gtmcli is 30x cheaper for validation, 7x cheaper for finding, and built for AI-native workflows with CLI and MCP support.
Comparing gtmcli and Prospeo on pricing, features, and AI agent support. gtmcli is 3x cheaper per email with no per-seat fees, CLI tooling, and native HubSpot integration.
Comparing gtmcli and Wiza on pricing, accuracy, and workflow flexibility. gtmcli is 4x cheaper per email, verifies in real-time, and works with AI agents and programmatic pipelines.
Learn what catch-all email domains are, why they break traditional validation, and how gtmcli uses convention matching and SMTP timing analysis to validate catch-all addresses.
Step-by-step guide to integrating gtmcli's email finder and validation API with Clay. Find verified emails at scale with zero enrichment errors.
Why your emails land in spam and how to fix it. The complete guide to email deliverability — from SPF, DKIM, and DMARC to list hygiene, bounce rates, warm-up strategies, and monitoring.
Everything you need to know about email validation — how SMTP verification works, syntax vs DNS vs SMTP checks, best practices for GTM teams, and how to validate emails at scale with the gtmcli API.
Comparing gtmcli and LeadMagic on pricing, accuracy, speed, and features. See how gtmcli is ~18% cheaper at every tier with catch-all validation and HubSpot integration.
A head-to-head comparison of gtmcli and ZeroBounce. See why GTM teams are switching to gtmcli for cheaper email validation, built-in email finder, and native HubSpot integration.