Let coding agents query any SQL database safely. Read-only by default and scoped by your policies.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add valv --env DATABASE_URL='<DATABASE_URL>' -- npx -y @valv/mcp~/.codex/config.toml
[mcp_servers.valv]
command = "npx"
args = ["-y", "@valv/mcp"]
env = { DATABASE_URL = "<DATABASE_URL>" }
# codex mcp add valv --env DATABASE_URL='<DATABASE_URL>' -- npx -y @valv/mcp~/.cursor/mcp.json
{
"mcpServers": {
"valv": {
"command": "npx",
"args": [
"-y",
"@valv/mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"valv": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@valv/mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"valv": {
"command": "npx",
"args": [
"-y",
"@valv/mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"valv": {
"command": "npx",
"args": [
"-y",
"@valv/mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"valv": {
"command": "npx",
"args": [
"-y",
"@valv/mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}Environment variables
DATABASE_URL
Replace the placeholders with your own credentials and keep them out of version control.