Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Every size of a brand's ad, on-brand, checked and delivered, made in the eonik app on your Mac.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
EONIK_API_KEY, EONIK_API_URL, EONIK_BRAND_IDValues marked secret are keys to your account. Never share them or paste them into a chat.
You need
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": {
"eonik": {
"command": "npx",
"args": [
"-y",
"eonik-mcp"
],
"env": {
"EONIK_API_KEY": "your-value",
"EONIK_API_URL": "your-value",
"EONIK_BRAND_ID": "your-value"
}
}
}
}Run this in your terminal
claude mcp add eonik --env EONIK_API_KEY=your-value --env EONIK_API_URL=your-value --env EONIK_BRAND_ID=your-value -- npx -y eonik-mcpFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"eonik": {
"command": "npx",
"args": [
"-y",
"eonik-mcp"
],
"env": {
"EONIK_API_KEY": "your-value",
"EONIK_API_URL": "your-value",
"EONIK_BRAND_ID": "your-value"
}
}
}
}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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"eonik": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"eonik-mcp"
],
"env": {
"EONIK_API_KEY": "your-value",
"EONIK_API_URL": "your-value",
"EONIK_BRAND_ID": "your-value"
}
}
}
}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.
EONIK_API_URL envEONIK_BRAND_ID envThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Runs on your computer; the tool list appears in your AI app after you install it.
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
The registry name was verified against the domain eonik.ai (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
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.
You need to fill in: EONIK_API_KEY
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).
The GitHub repo last changed –, and the latest version (4.0.0) reached the registry 11 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
In the same category: Spec Driven Development, Remote Desktop Commander, Zoo MCP
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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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.
eonik Finished, on-brand ads without the busywork. Your designer makes the master. eonik makes every size your media plan asks for, on-brand, in the eonik app on your Mac. Ask for it from Claude, ChatGPT, Cursor, Codex or VS Code. Nothing is made, changed or sent until you say so.
Website · Download for Mac · Connect an assistant · GitHub
English · Español · Português · Français · हिन्दी · 简体中文 · 日本語 · 한국어
eonik gets you finished, on-brand ads without the busywork. Your designer makes the master; eonik makes the adapts: every size a media plan asks for, with your brand's fonts, rules and layout kept the same way on every size, checked, sent for approval and delivered.
The work runs in the eonik app on your Mac (download · macOS 15+ · Apple silicon), where your files and fonts are. Connect Claude, ChatGPT, Cursor, Codex or VS Code to it and ask in your own words; your assistant asks eonik, and eonik does the work on your computer. Nothing is made, changed or sent until you say so.
It cannot pause, scale, launch or edit ads, and it cannot write to Meta, TikTok or Google Ads. It never says an ad "will work". It never makes a choice that is yours: making the sizes, approving, sending past a rule finding. Those are buttons you press, in eonik's panel or in eonik itself.
Claude (claude.ai, Desktop), ChatGPT, VS Code: add the connector https://api.eonik.ai/mcp and sign in with your eonik account; you choose the brand when you connect.
Hosts that run local servers (Claude Desktop's config file, Cursor, Codex): this package bridges them to the same server.
{
"mcpServers": { "eonik": { "command": "npx", "args": ["-y", "eonik-mcp"], "env": { "EONIK_API_KEY": "eonk_live_...", "EONIK_BRAND_ID": "the brand this connection is about" } } } }
EONIK_BRAND_ID is required if you have more than one brand: eonik never guesses which client's work you mean, and tells you the choices if it is missing. EONIK_API_URL defaults to https://api.eonik.ai.
The bridge forwards exactly what the server offers (tools, the panel, prompts and eonik's questions to you) and adds nothing of its own. Keep eonik open on your Mac while you work.
Keep EONIK_API_KEY in your MCP host env. Do not commit it. See SECURITY.md.
| Download for Mac | eonik.ai/download · editor free · macOS 15+ · Apple silicon |
| Connect an assistant | eonik.ai/mcp |
| Homebrew | homebrew-tap |
| Save ads you see | Chrome extension |
MIT. See LICENSE.