Pg Readonly MCP vs MCPg
A side-by-side look at the Pg Readonly MCP and MCPg MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
P
Pg Readonly MCPDatabases · Local subprocess (stdio)A read-only Postgres MCP server that parses SQL rather than pattern-matching it.41FairAuth: otherVerdict: choose Pg Readonly MCP for databases work as a local process; choose MCPg for databases as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
PChoose Pg Readonly MCP when
- You need dedicated capabilities in the Databases domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: other.
- You have the keys it needs:
PG_READONLY_MCP_DSN.
Choose MCPg when
- You need dedicated capabilities in the Databases domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: other.
- You have the keys it needs:
MCPG_DATABASE_URL, MCPG_ACCESS_MODE.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | P Pg Readonly MCP | |
|---|---|---|
| Category | Databases | Databases |
| Quality signal | 41/100 · Fair | 76/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | other | other |
| Pricing | Free | Free |
| Required env vars | PG_READONLY_MCP_DSN | MCPG_DATABASE_URLMCPG_ACCESS_MODE |
Tools & capabilities
Pg Readonly MCP tools
No tool names declared yet. Check the project README from the listing page.
MCPg tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Pg Readonly MCP
{
"mcpServers": {
"pg-readonly-mcp": {
"command": "uvx",
"args": [
"pg-readonly-mcp"
],
"env": {
"PG_READONLY_MCP_DSN": "YOUR_PG_READONLY_MCP_DSN_HERE"
}
}
}
}
MCPg
{
"mcpServers": {
"devopam-mcpg": {
"command": "uvx",
"args": [
"mcpg"
],
"env": {
"MCPG_DATABASE_URL": "YOUR_MCPG_DATABASE_URL_HERE",
"MCPG_ACCESS_MODE": "YOUR_MCPG_ACCESS_MODE_HERE"
}
}
}
}
Frequently asked questions
Pg Readonly MCP is categorized under Databases and uses a local stdio subprocess. MCPg belongs to Databases and uses a local stdio subprocess. Pick Pg Readonly MCP for databases work and MCPg for databases.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Pg Readonly MCP is listed as free. Auth: other. MCPg is listed as free. Auth: other. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add pg-readonly-mcp and devopam-mcpg as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Pg Readonly MCP has a quality signal of 41/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. MCPg has 76/100 (Great) with 17 views, 0 installs and 13 GitHub stars.