Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Find company websites and verified business emails through the Potarix Enricher API.
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Works in Claude on the web, desktop and mobile:
https://api.potarix.com/mcpRun this in your terminal
claude mcp add --transport http potarix https://api.potarix.com/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"potarix": {
"url": "https://api.potarix.com/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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"potarix": {
"type": "http",
"url": "https://api.potarix.com/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:
https://api.potarix.com/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.
We have not read this server’s tool list yet; we check endpoints in rotation.
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
The registry name was verified with the GitHub account Potarix, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
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.
The registry does not list a required key, though some servers ask you to sign in on first use.
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.
The GitHub repo last changed –, and the latest version (0.1.2) reached the registry 5 months ago.
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.
In the same category: Spec Driven Development, Remote Desktop Commander, Tools MCP
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
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.
MCP wrapper for Potarix Enricher. Lets AI agents resolve company websites, find verified emails, and pull complete company rosters — and (with one human-in-the-loop card capture) sign up and pay for credits entirely from the agent.
| tool | what it does | cost |
|---|---|---|
lookup_company_website | company name → website URL | 2 credits |
find_person_email | named person + company/domain → verified email | 25 credits |
find_decision_maker_email | category + domain → likely buyer name + email | 25 credits |
find_linkedin_email | LinkedIn profile URL → verified email | 10 credits |
find_company_emails | domain → public company contact roster | 25 credits |
find_all | one company name → website + DMs + full company email list | sum of above |
check_balance | credits, email, saved-card status, key count | free |
start_checkout | get a Stripe URL to add a card the first time | n/a |
topup_credits | charge the saved card and add credits | n/a |
1 credit = $0.01. Trial accounts start with 25 free credits. Every endpoint floors at the worst-case provider COGS — a hit never loses money, and short-circuited waterfall calls earn margin.
| transport | endpoint | best for |
|---|---|---|
| Streamable HTTP (hosted) | https://api.potarix.com/mcp | remote agents (Claude, ChatGPT) — no install |
| stdio (npm package) | npx -y potarix-mcp | local/desktop clients |
Both expose the same nine tools. The hosted server is stateless and multi-tenant: every request is authorized by its own Authorization: Bearer ptk_live_... header, so there is no per-user deployment.
Point any MCP client that speaks Streamable HTTP at https://api.potarix.com/mcp and send your key as a bearer token:
{
"mcpServers": { "potarix": { "url": "https://api.potarix.com/mcp", "headers": { "Authorization": "Bearer ptk_live_your_key" } } } }
npm install -g potarix-mcp
Or run it without a global install:
npx -y potarix-mcp
Set your Potarix API key:
export POTARIX_API_KEY=ptk_live_your_key
Optional:
export POTARIX_API=https://api.potarix.com/enricher
{
"mcpServers": { "potarix": { "command": "npx", "args": ["-y", "potarix-mcp"], "env": { "POTARIX_API_KEY": "ptk_live_your_key" } } } }
claude mcp add potarix npx -- -y potarix-mcp
Then add POTARIX_API_KEY to the environment where Claude Code runs.
npm install
npm run build npm run smoke # stdio transport: connect + tools/list
npm run start:http # serves on http://127.0.0.1:8080/mcp (set PORT to change)
POTARIX_MCP_URL=http://127.0.0.1:8080/mcp npm run smoke:http
Environment variables:
| var | default | purpose |
|---|---|---|
POTARIX_API_KEY | — | API key (stdio only; HTTP reads it per-request from the bearer header) |
POTARIX_MCP_TRANSPORT | stdio | http to run the Streamable HTTP server (or pass --http) |
PORT / HOST | 8080 / 127.0.0.1 | HTTP bind address |
POTARIX_MCP_PATH | /mcp | HTTP request path |
POTARIX_MCP_ALLOWED_HOSTS | — | comma-separated host allow-list; enables DNS-rebinding protection |
POTARIX_API | https://api.potarix.com/enricher | API base URL override |
This repo includes server.json for the official MCP Registry. The entry is multi-surface: it declares both the hosted Streamable HTTP remote (https://api.potarix.com/mcp) and the npm stdio package (potarix-mcp), so a single registry record advertises two ways to connect.
The registry validates the npm package by fetching it and checking that its published mcpName matches the server name, so the npm package must be published first, at the same version named in server.json (packages[].version).
Publishing steps (version-bump first, then npm, then registry):
# 1. Bump package.json + server.json to the same new version (e.g. 0.1.3).
npm publish
mcp-publisher login github mcp-publisher publish
The package mcpName in package.json must match server.json:
io.github.Potarix/potarix-mcp