Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
Jsondiff
Overview
Description from the maker (original English)
Compare two JSON documents deeply, ignoring key and array order, with every difference pathed.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
You need
- npmNode.js installed (for the npx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"jsondiff": {
"command": "npx",
"args": [
"-y",
"@reneturcios/jsondiff",
"mcp"
]
}
}
}Run this in your terminal
claude mcp add jsondiff -- npx -y @reneturcios/jsondiff mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"jsondiff": {
"command": "npx",
"args": [
"-y",
"@reneturcios/jsondiff",
"mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"jsondiff": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@reneturcios/jsondiff",
"mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account CloudCorpRecords, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Otheri
- More stars than 0% of the other 32435 servers in this category
- Published to the registry more recently than 89% of the other 32435 servers in this category
- Basic checks equal to or better than 100% of the other 32435 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Jsondiff safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 4 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js, Docker on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Apify MCP Server
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated yesterday
Install
Apify MCP Server
by apify
Extract data from any website with thousands of scrapers, crawlers, and automations on Apify Store ⚡
Runs in the cloudUpdated today
Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
jsondiff
Compare two JSON documents deeply, without worrying about key or array order. jsondiff walks both documents at every level and reports each difference it finds — a key that exists on one side only, a value that differs, or a value whose JSON type differs — with the exact dotted path of the difference, a per-kind summary, and an overall identical / different status.
It is pure local computation: no upstream API, no account, no API key, no configuration.
CLI
npx @reneturcios/jsondiff compare '<json1>' '<json2>'npx @reneturcios/jsondiff compare --file1 a.json --file2 b.json npx @reneturcios/jsondiff --version
Both inputs are JSON strings; with --file1 / --file2 they are read from files instead. Output is the comparison report as JSON:
{"status": "different", "total_differences": 2, "differences": [ { "type": "missing_key", "path": "root.user.settings.language", "key": "language", "file1_value": "tr", "message": "Key 'language' exists in file1 but missing in file2" }, { "type": "value_mismatch", "path": "root.user.name", "file1_value": "Ahmet Yılmaz", "file2_value": "Mehmet Demir", "message": "Value mismatch at 'root.user.name'" } ], "summary": { "missing_keys": 1, "extra_keys": 0, "value_mismatches": 1, "type_mismatches": 0 } }
Exit codes: 0 on success, 1 on a runtime error (including an input that is not valid JSON — the error names the input), 2 on a usage error.
MCP server
The same bin serves a stdio MCP server:
npx -y @reneturcios/jsondiff mcpMCP client config:
{"mcpServers": { "jsondiff": { "command": "npx", "args": ["-y", "@reneturcios/jsondiff", "mcp"] } } }
Tools
compare_json— Compare two JSON strings deeply and order-independently, and report every difference (missing keys, extra keys, value mismatches, type mismatches) with full path tracking.json1(string, required) — the first JSON document, as a JSON stringjson2(string, required) — the second JSON document, as a JSON string
Difference kinds: missing_key (in the first document only), extra_key (in the second only), value_mismatch (same JSON type, different content), type_mismatch (different JSON types). Arrays are compared order-independently: an element with no deep-equal partner on the other side is reported as a value mismatch.
Docker
docker run -i ghcr.io/cloudcorprecords/jsondiff # stdio MCP serverdocker run --rm ghcr.io/cloudcorprecords/jsondiff compare '{"a":1}' '{"a":2}'
Development
npm installnpm run build # tsc -> dist/ npm test # tsx --test test/*.test.ts (pure local, no network) npm run dev # run the CLI from source
License
MIT — Copyright (c) 2026 Rene Turcios