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
nimistu — Estonian Business Register
Overview
Description from the maker (original English)
Estonian Business Register: companies, people, beneficial owners, trademarks. Free, no API key.
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 in the cloud
- Transport: Streamable HTTP, SSE
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 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://nimistu.ee/api/mcpRun this in your terminal
claude mcp add --transport http nimistu https://nimistu.ee/api/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"nimistu": {
"url": "https://nimistu.ee/api/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": {
"nimistu": {
"type": "http",
"url": "https://nimistu.ee/api/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://nimistu.ee/api/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 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Nimistu, 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 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 18345 servers in this category
- Published to the registry more recently than 12% of the other 18345 servers in this category
- Basic checks equal to or better than 100% of the other 18345 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 nimistu — Estonian Business Register 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 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 (1.0.0) reached the registry 5 months 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, ScienceShot science reference
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 2 days ago
Install
ScienceShot science reference
by scienceshot.com
Sourced, citable answers in radiation and particle physics, photonics, electronics and quantum.
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.
nimistu MCP — Estonian Business Register for AI assistants
Connect any MCP-compatible AI assistant (Claude, Cursor, ChatGPT, and more) to the Estonian Business Register (Äriregister) and related open data. Ask about any Estonian company, person, trademark, or activity sector in plain language — free, no API key, read-only — with every answer traceable to its source.
Powered by [nimistu.ee](https://nimistu.ee), a free, ad-free public register that aggregates 60+ official Estonian open-data sources, each field carrying its source and last-update date.
- Endpoint (Streamable HTTP):
https://nimistu.ee/api/mcp - Free — no API key, no signup, read-only
- Bilingual — Estonian and English
- Traceable — every answer is source- and date-stamped
Quick start
Claude Code
claude mcp add --transport http nimistu https://nimistu.ee/api/mcpCursor
Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project):
{"mcpServers": { "nimistu": { "url": "https://nimistu.ee/api/mcp" } } }
Claude Desktop and other clients
{"mcpServers": { "nimistu": { "url": "https://nimistu.ee/api/mcp" } } }
Stdio-only clients can bridge via mcp-remote:
{"mcpServers": { "nimistu": { "command": "npx", "args": ["-y", "mcp-remote", "https://nimistu.ee/api/mcp"] } } }
Transports: Streamable HTTP at https://nimistu.ee/api/mcp (recommended) · SSE at https://nimistu.ee/api/sse.
What you can ask
You talk to it in natural language — you don't need to know table names or tool details.
- Tell me about an Estonian OÜ — owners, board, financials
- Which companies is a given person connected to?
- What happened in the Estonian Business Register today?
- Top 10 taxpayers and employers in Estonia
- Find trademarks containing a word — and who owns them
- How many retail companies (EMTAK 47.8) are there, and where?
- Compare the 2024 financials of three companies
Capabilities
Ten tools over the full nimistu.ee dataset:
| Capability | What it covers |
|---|---|
| Company profile | status, address, activity (EMTAK), VAT, employees, financials, tax debt, board (with appointment dates), owners, trademarks |
| Annual reports | every filed majandusaasta aruanne: revenue, profit, employees, equity, assets, liabilities, labour cost, plus computed ratios and the EMTAK sector median |
| Ownership structure | subsidiaries, associates, foreign parent, group structure |
| Person & connections | a person's current and former ties to Estonian companies (board, shareholder, representative) |
| Fresh registry events | what changed in the Estonian Business Register today |
| Rankings | curated top lists — taxpayers, employers, procurement winners, MPs in business, and more |
| Trademark search | EUIPO trademarks by text, with their owners |
| Sector lookup | companies by EMTAK activity code, with counts and locations |
| EMTAK classification | resolve and explain Estonian activity codes |
What it does not cover
Worth knowing before you rely on a negative answer:
- Registry entry history. Company profiles are current state only — no kanded, no määrused, no pending menetlused. An answer about a company is about today, and will not mention an ongoing proceeding.
- Beneficial owners. Estonia's FIU withdrew public access to the beneficial owner register on 10 July 2026 following the CJEU ruling, so this server no longer returns them.
- Court decisions and public-authority documents. Separate corpora, served by lahend.ee and dokumendiregister.ee respectively.
- Real-time data. Sources refresh on their own cadences, mostly nightly.
get_companyreturnsdataAsOfso you can see how stale an answer is rather than having to assume.
Data sources and attribution
nimistu aggregates 60+ official sources — Äriregister (RIK), the Estonian Tax and Customs Board (EMTA), EUIPO, public-procurement registers, sanctions lists, and more. Each field shows its source and last-update date.
- Sources: https://nimistu.ee/allikad
- Usage terms: https://nimistu.ee/litsents
- Machine-readable index for agents: https://nimistu.ee/llms.txt
Links
- Website — https://nimistu.ee
- MCP connection page — https://nimistu.ee/mcp
License
The configuration examples and documentation in this repository are released under the MIT License. The nimistu.ee service and the underlying register data have their own terms — see https://nimistu.ee/litsents.