Spec Test MCP Server
Black-box conformance suite for any MCP server. Tests the two most recent spec revisions (currently 2026-07-28 and 2025-11-25) against the published schema, plus official-SDK interop.
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security
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cold start
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freshness
Maintained45d ago
Install Spec Test MCP server
Install in Claude Code
claude mcp add spec-test -- npx -y @hasmcp/mcp-spec-testInstall in Cursor
{
"mcpServers": {
"spec-test": {
"command": "npx",
"args": [
"-y",
"@hasmcp/mcp-spec-test"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"spec-test": {
"command": "npx",
"args": [
"-y",
"@hasmcp/mcp-spec-test"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"spec-test": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@hasmcp/mcp-spec-test"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"spec-test": {
"command": "npx",
"args": [
"-y",
"@hasmcp/mcp-spec-test"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Freshness
Maintained — last maintenance signal 45d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-08-26 · 45d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry
FAQ
›How do I install the Spec Test MCP server in Claude Code?
Run: claude mcp add spec-test -- npx -y @hasmcp/mcp-spec-test. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Spec Test require an API key?
No required environment variables are declared in its published metadata.
›Can I use Spec Test as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Spec Test in the official MCP registry?
No. It was indexed from npm.