Json MCP server
io.github.nowledge-co/server.json·v1.0.0·4 starsA server that provides MCPB package functionality for Nowledge Mem
4 stars27 downloads/wk
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Json tools
No tool declarations could be read from the package source. They show once the server is installed.
Public scan report
scanner v0.1.10 · 2026-10-01 · same rubric, same numbers if you re-run it
- Code scan2 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancelast push 198 days ago4/15
- Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
How Json compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 77/100
- higher than 50% of 48,255 servers
- GitHub stars
- 4
- more than 82% of 28,688 servers
- Downloads a week
- 27
- more than 14% of 12,191 servers with a package
Install Json in Claude Code, Cursor or VS Code
claude mcp add server.json -- uvx nowledge-mem
What the publisher says
From the Json repository's README, as published. We do not edit it. Read it on GitHub
Nowledge Mem Claude Desktop Extension
One-click Claude Desktop integration for Nowledge Mem on macOS and Windows, with no separate Python or Node installation required. After installation, Claude can search your memories, save important context, update existing knowledge, and open Mem's inline graph views during any conversation.
Demo Screenshots
https://github.com/user-attachments/assets/a99a1daa-e73c-429e-a17b-0183b2f9671a
For more details, please refer to the Nowledge Mem Documentation.
End User Installation
See also the end user installation details at Nowledge Mem Documentation: Claude Desktop.
- Make sure Nowledge Mem is already running on the same machine, and update Claude Desktop to the latest version.
- Download the Nowledge Mem Claude Desktop extension and double-click the .mcpb file to install it.
- Restart Claude Desktop once after installation.
Access Mem Anywhere (Remote Access)
By default the extension connects to your local Mem at 127.0.0.1:14242.
For remote access, the extension reads the same shared config file as the nmem CLI:
- macOS / Linux: ~/.nowledge-mem/config.json
- Windows: %USERPROFILE%\\.nowledge-mem\\config.json
If you start Access Anywhere from Nowledge Mem Desktop on the same machine, this file is usually written for you automatically.
If you need to point Claude Desktop at a remote Mem manually, create the file with:
{
"apiUrl": "https://mem.example.com",
"apiKey": "nmem_your_key"
}Use your server root URL in apiUrl. If you already have an older config ending in /remote-api or /mcp, the extension accepts that too.
Restart Claude Desktop after changing the file.
Troubleshooting
- In Claude Desktop, click the + button in the chat box and open Connectors to confirm Nowledge Mem appears.
- If it does not, open Settings → Extensions → Advanced Settings and inspect the extension status and logs there.
- If you're using Access Anywhere, verify the shared config file above points to the correct URL and key.
Build From Source
The extension uses the Node runtime that ships with Claude Desktop, so end users do not need to install Python or Node.
npm ci
npm test
npm run smoke
npm run packFor maintainers:
- npm run build bundles the bridge into dist/index.js
- npm test rebuilds and runs the end-to-end MCP forwarding checks
- npm run smoke validates the built dist/index.js against a mock MCP server
- npm run pack builds, packages, and audits the final .mcpb
- npm run verify:package unpacks the finished bundle and checks the release invariants
- npm ci also installs the pinned mcpb packer locally, so npx @anthropic-ai/mcpb pack resolves to the tested version inside this repo
- the release archive excludes node_modules/, source files, and stale Python artifacts
Show Metadata Content
mcp-name: io.github.nowledge-co/server.json
Nothing above is checked by us. What we check is on the safety report.
Json: common questions
- Is Json MCP server safe?
- Mostly: it is graded B (77/100). Read the Json safety report
- How do I install Json?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does Json need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Json maintained?
- The last commit was 231 days ago (2026-03-18). The latest release is v1.0.0.
- How does Json compare with other MCP servers?
- safety score 77/100 (higher than 50% of 48,255 servers); github stars 4 (more than 82% of 28,688 servers); downloads a week 27 (more than 14% of 12,191 servers with a package). Full comparison.