MCP Protocol Conformance
MCP conformance test harness. JSON-RPC, OAuth 2.1 PKCE, schemas, smoke, annotations. CLI + lib.
Install
npmstdio
npx -y mcp-protocol-conformance Client config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"io-studiomeyer-protocol-conformance": {
"command": "npx",
"args": [
"-y",
"mcp-protocol-conformance"
]
}
}
} Source: official MCP Registry record · registry name io.studiomeyer/protocol-conformance · published 2026-08-19 · updated 2026-08-19. Not an endorsement; review the code before connecting it to anything sensitive.