Veto SQL MCP MCP server

Veto is an official MCP server that provides deterministic SQL safety and cost analysis for Postgres. It allows AI agents to vet SQL statements before execution, returning structured verdicts (ok, warn, block) based on rules like destructive deletes or locking risks, without connecting to the production database or using LLMs.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by MetaWear s.r.o.

MCP endpoint (Streamable HTTP)

https://vetosql.com/mcp

Vendor documentation

What you can do with it

Analyze Postgres SQL for safety risks before execution
Block destructive queries like DELETE without WHERE
Estimate query costs using scratch database EXPLAIN plans
Enforce custom organizational policies on specific tables

Tools advertised by the last live check:

analyze_sql
set_policies
get_policies

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http veto-sql-mcp https://vetosql.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add veto-sql-mcp --url https://vetosql.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable veto-sql-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "veto-sql-mcp": {
      "url": "https://vetosql.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "veto-sql-mcp": {
      "type": "streamableHttp",
      "url": "https://vetosql.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start veto-sql-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "veto-sql-mcp": {
      "type": "http",
      "url": "https://vetosql.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http veto-sql-mcp https://vetosql.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "veto-sql-mcp": {
      "url": "https://vetosql.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "veto-sql-mcp": {
      "serverUrl": "https://vetosql.com/mcp"
    }
  }
}

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