Emailens MCP
MCP server emailens/mcp/io.github.emailens/mcp homepage
Email compatibility analysis across 15 clients — preview, audit, fix, diff, deliverability.
claude mcp add mcp -- npx -y @emailens/mcpAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
One thing to look at
- 6 stars6 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.