Does Everything (reference) work with Claude Code?
Yes. Everything (reference) passed every step of our test in Claude Code on Oct 13, 2026: it installed, connected, its tools were visible, and an agent used it to finish a real task.
Result
ResultPassed
Date testedOct 13, 2026
Plan tested onClaude Pro
App version2.1.296 (Claude Code)
Modelhaiku
Steps
- install OK
- connected OK
- tools visible OK
- agent task OK
From our own harness run, not the maker’s claims. How we test.
What happened in this run
Install config we used
claude mcp add -s local ref-everything -- npx -y @modelcontextprotocol/server-everythingConnection check
ref-everything: npx -y @modelcontextprotocol/server-everything - ✔ ConnectedTools check
verified via task step: agent saw and called mcp__ref-everything__echo
Agent task: task
- Tool calls, in order:
ToolSearch,mcp__ref-everything__echo - Agent’s answer (excerpt):
toolpassed
- Run: 3 turns, 3.5 s, $0.0044 model cost
Raw details from our harness log for this run. Secrets redacted.
Set it up in Claude Code
Copy-paste config for every app is on the Everything (reference) page. Not connecting? Claude Code MCP troubleshooting.
Other apps we tested it in: Cursor (passed).