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  "markdown": "Co-founder and CEO, Railsware.\n\nYaroslav Lazor is CEO of Railsware, the product studio he helped found in 2007, which builds Mailtrap, Coupler.io and TitanApps. Mailtrap began in 2011 as an internal Railsware tool, and its about page quotes him at the Railsberry conference in 2012, where the tool had its first public demo.\n\n## What Yaroslav builds\n\n- [Mailtrap Email API + MCP](https://www.anchorterminal.com/tools/mailtrap.md), graded B, 66.8/100, in Email delivery APIs. Email platform from Railsware Products Studio LLC for transactional and bulk sending, inbound mail, templates, contacts and sandbox testing. Agents reach it through a REST API, SMTP, SDKs, a CLI and a local MCP server. Co-founder and CEO, Railsware, researched 2026-10-28.\n\n## Works with\n\n- [Sergiy Korolov](https://www.anchorterminal.com/people/sergiy-korolov/), Co-CEO, Railsware\n\n## Questions\n\n### Who is Yaroslav Lazor?\n\nYaroslav Lazor is CEO of Railsware, the product studio he helped found in 2007, which builds Mailtrap, Coupler.io and TitanApps. Mailtrap began in 2011 as an internal Railsware tool, and its about page quotes him at the Railsberry conference in 2012, where the tool had its first public demo.\n\n### What does Mailtrap (Railsware) make?\n\nAnchor Terminal lists Mailtrap Email API + MCP from Mailtrap (Railsware). Email platform from Railsware Products Studio LLC for transactional and bulk sending, inbound mail, templates, contacts and sandbox testing. Agents reach it through a REST API, SMTP, SDKs, a CLI and a local MCP server.\n\n### How are Yaroslav's tools graded?\n\nMailtrap Email API + MCP is graded B, 66.8 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://www.linkedin.com/in/sergiykorolov/details/experience/\n- https://mailtrap.io/about-us/\n- https://www.linkedin.com/in/sergiykorolov\n- https://mailtrap.io/\n- https://mailtrap.io\n- https://docs.mailtrap.io/\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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