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
STEMPA
Overview
Description from the maker (original English)
STEMPA seals one brief every AI reads the same way, with a signed receipt.
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 checksi0 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 in the cloud
- Transport: Streamable HTTP
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 0 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://stempa.kragos.app/mcpRun this in your terminal
claude mcp add --transport http stempa https://stempa.kragos.app/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"stempa": {
"url": "https://stempa.kragos.app/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": {
"stempa": {
"type": "http",
"url": "https://stempa.kragos.app/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.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://stempa.kragos.app/mcpMenu names can differ slightly by plan and over time.
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
We have not read this server’s tool list yet; we check endpoints in rotation.
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
- ! Caution
Maker matches the repo
The publisher (kragos.app) is not the repo owner (francoisheunis88-beep); someone else may have listed it
- … 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 32476 servers in this category
- Published to the registry more recently than 72% of the other 32476 servers in this category
- Basic checks equal to or better than 33% of the other 32476 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 STEMPA safe?
It passed 0 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 in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 14 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, zanadir
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
Remote Desktop Commander
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
zanadir
by MustacheCase
Find what a repository's CI is missing, and which security checks cannot fail the build.
Runs on your computerUpdated 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.
STEMPA
Brief your AI once. Seal it.
STEMPA is a remote MCP server. Your AI first lists what it already knows about a job, then asks you only about the gaps: up to five questions at a time, each with a suggested answer. You answer once, and STEMPA seals your answers into one brief with a signed receipt. Change a word and it becomes a new version.
Works with Claude, ChatGPT (Plus or higher) and Grok.
- Server address:
https://stempa.kragos.app/mcp - Transport: Streamable HTTP
- Sign-in: OAuth 2.1 with dynamic client registration and PKCE. There is no key to paste.
- Website: https://stempa.kragos.app
- Official MCP Registry name:
app.kragos/stempa(seeserver.json)
This repository is documentation only. STEMPA is a hosted service; there is nothing to install or run locally.
Connect
STEMPA works with Claude, ChatGPT (Plus or higher) and Grok; step-by-step instructions for each are in CONNECT.md. In short: paste https://stempa.kragos.app/mcp into your AI's connectors, and sign in to STEMPA when asked.
Any other MCP client that supports remote servers with OAuth connects the same way: add a remote server with the address https://stempa.kragos.app/mcp. The client finds the sign-in itself; there is no key to paste. In a client that reads an mcp.json file, the entry looks like this:
{"servers": { "stempa": { "type": "http", "url": "https://stempa.kragos.app/mcp" } } }
The first sign-in creates a free STEMPA account.
Use it
- Say to your AI: "Grill me on [your idea]."
- Your AI lists what it already knows, then asks only about the gaps: up to five questions at a time, each with a suggested answer. Accept the suggestion, pick an option, or type your own.
- When the gaps are closed, your AI freezes the brief.
- Open your account at https://stempa.kragos.app and press Seal. The brief gets a fingerprint and a signed receipt.
- Later, in any AI you connect, ask it to read your sealed brief. It reads the same sealed version.
Tools
grill_start, grill_map, grill_gaps, grill_answer, grill_freeze, and tools that read your briefs back.
How a brief is sealed
- Connect. Add STEMPA to the AI you already use.
- Answer. Your AI lists what it already knows, then asks only about the gaps. Pick an option, accept the suggestion, or type your own.
- Seal. Your AI freezes the brief; you seal it with one press in your STEMPA account. The sealed brief gets a fingerprint and a receipt with post-quantum signatures. Anyone you share a receipt with can check it on the receipt page.
A sealed brief is a record of the scope you agreed.
Plans
Start free: 14 days of Pro, then Free: 5 sealed briefs a month, kept 30 days. No card. Current plans are on https://stempa.kragos.app.
Support
Use the contact details on https://stempa.kragos.app. STEMPA is supplied by KRAGOS, South Africa.