MCP server for Billy (billy.dk) accounting — connect Claude & AI assistants to Danish bookkeeping: invoices, journal entries, trial balance, bank reconciliation. Human-approval write protection.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add billy --env BILLY_ACCESS_TOKEN='<BILLY_ACCESS_TOKEN>' -- npx -y billy-mcp~/.codex/config.toml
[mcp_servers.billy]
command = "npx"
args = ["-y", "billy-mcp"]
env = { BILLY_ACCESS_TOKEN = "<BILLY_ACCESS_TOKEN>" }
# codex mcp add billy --env BILLY_ACCESS_TOKEN='<BILLY_ACCESS_TOKEN>' -- npx -y billy-mcp~/.cursor/mcp.json
{
"mcpServers": {
"billy": {
"command": "npx",
"args": [
"-y",
"billy-mcp"
],
"env": {
"BILLY_ACCESS_TOKEN": "<BILLY_ACCESS_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"billy": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"billy-mcp"
],
"env": {
"BILLY_ACCESS_TOKEN": "<BILLY_ACCESS_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"billy": {
"command": "npx",
"args": [
"-y",
"billy-mcp"
],
"env": {
"BILLY_ACCESS_TOKEN": "<BILLY_ACCESS_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"billy": {
"command": "npx",
"args": [
"-y",
"billy-mcp"
],
"env": {
"BILLY_ACCESS_TOKEN": "<BILLY_ACCESS_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"billy": {
"command": "npx",
"args": [
"-y",
"billy-mcp"
],
"env": {
"BILLY_ACCESS_TOKEN": "<BILLY_ACCESS_TOKEN>"
}
}
}
}Environment variables
BILLY_ACCESS_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.