NULA.BG runs on your own machine — the client starts it, so there is no endpoint to ping. 35 installs a week from npm. Last commit 26 Sep 2026.
Bulgarian accounting platform nula.bg: invoices, bills, OCR, customers, inventory and banking.
Today is the operative word: we check NULA.BG every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add nulabg-mcp -e 'NULA_API_KEY=<NULA_API_KEY>' -- npx -y nulabg-mcp
{
"mcpServers": {
"nulabg-mcp": {
"command": "npx",
"args": [
"-y",
"nulabg-mcp"
],
"env": {
"NULA_API_KEY": "<NULA_API_KEY>"
}
}
}
}
[mcp_servers.nulabg-mcp]
command = "npx"
args = ["-y", "nulabg-mcp"]
env = { NULA_API_KEY = "<NULA_API_KEY>" }
{
"mcpServers": {
"nulabg-mcp": {
"command": "npx",
"args": [
"-y",
"nulabg-mcp"
],
"env": {
"NULA_API_KEY": "<NULA_API_KEY>"
}
}
}
}
{
"servers": {
"nulabg-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"nulabg-mcp"
],
"env": {
"NULA_API_KEY": "<NULA_API_KEY>"
}
}
}
}
Put your own value in place of
<NULA_API_KEY> (nula.bg API key).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
NULA_READ_ONLY (Read-only by default (true). Set to false to allow creating, editing, e-mailing and deleting documents), NULA_PROFILES (Optional JSON {"alias":"api-key"} for several companies).
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Answers built from our own checks of this server.