AI Plugin Index
Nacre
Verified · nacre.workMCP server by nacre-work · updated · ★ 1 · 2.4k downloads a week
Self-hosted permission-aware context layer. Search returns only what the caller may read. Nacre is published by nacre.work from its verified domain in the official MCP Registry.
Last commit 10 days ago
Apache-2.0: permissive, fine for commercial use
Clear description, published package or server URL, original repository
Not checked yet. What we check
Install Nacre
Built from the published package, never by AIclaude mcp add nacre -- npx -y @nacre.work/mcpRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"nacre": {
"command": "npx",
"args": [
"-y",
"@nacre.work/mcp"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"nacre": {
"command": "npx",
"args": [
"-y",
"@nacre.work/mcp"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"nacre": {
"command": "npx",
"args": [
"-y",
"@nacre.work/mcp"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add nacre -- npx -y @nacre.work/mcp{
"mcpServers": {
"nacre": {
"command": "npx",
"args": [
"-y",
"@nacre.work/mcp"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add nacre npx -y @nacre.work/mcpGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the nacre block.
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Nacre: common questions
How do I install Nacre?
In Claude Code run claude mcp add nacre -- npx -y @nacre.work/mcp. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is Nacre the official server?
Nacre is published by nacre.work from its verified domain in the official MCP Registry.
Is Nacre free?
The code is published under the Apache-2.0 licence. The service it connects to may have its own pricing.
Is Nacre safe to use?
It scores 90 of 100. Grades: maintenance A, licence A, quality C. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to Nacre?
Similar MCP servers: exa, Agent Skills Search Server, brave, Atlassian Rovo MCP Server.
Does Nacre work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.