Everyone's shipping
MCP servers.No one's testing them.

MCP is the new standard. OpenAI, Anthropic, Microsoft - everyone's in. But you're still testing servers by opening Claude Desktop and praying.

$ npm install -g mcp-jest

$ mcp-jest node ./server.js

✓tools/search47ms

✓tools/calculate23ms

✓prompts/summarize89ms

3 passedin 0.4s

That's it. That's the product.

The market moved

97M

SDK downloads/mo

10K

MCP servers live

Major platforms adopted

Testing framework

What you get

Automated tests for every tool and prompt.

Snapshot testing that catches regressions.

CI/CD that blocks broken deployments.

HTTP, SSE, stdio - every transport.

Zero config. One command.

Stop hoping. Start testing.

Open source. MIT licensed. Works in 30 seconds.

$npm install -g mcp-jest