MCPJam is the first testing & evaluations platform for MCP servers. Over 106,000 developers and +300 enterprises use MCPJam to see how their servers behave in apps like ChatGPT and Claude, improve experiences for users in AI-native chat interfaces, and build continuous reliability into every deployment.
Headquartered in San Francisco, MCPJam aims to help developers build better MCP servers.
This is the 2nd launch from MCPJam . View more

MCPJam
Launched this week
Run User Testing, Swarms, Evals, and CI/CD gates on your MCP server to see if users actually succeed in ChatGPT, Claude, and Copilot. Test local servers via desktop app, CLI, or SDK.










Free
Launch Team / Built With


Cleanest UX for testing MCP. Couldn't imagine building apps for AI chat surfaces without it - jam on, MCPJam!
MCPJam
@sophie_vo thanks for contributing!!
Congrats on your launch, Prathmesh! The concept sounds really good, I'll definitely take a look.
MCPJam
@ab80 awesome to here @ab80 - let us know how it goes!
Honestly, MCPJam has become one of the best and most useful dev tools for MCPs. Having all these features in one place makes the whole workflow way smoother!!
MCPJam
@nachocossio1 thanks for contributing!
MCPJam
Excited for this & would love feedback!!
MCPJam
@vigneshgopalandd_maker woo, thanks for contributing Vig!
Congrats!! Testing MCP servers across different clients is a nightmare. Having automated evaluations in CI/CD is amazing!! :)
MCPJam
@weimar_torres woo thanks for contributing!!
Excited for the launch today :)
MCPJam
@ozi_boms thanks for contributing Ozi!!
It doesn't get better than MCPJam if you want to test your MCP server!!!
MCPJam
@ignaciojimenezr let's do it!