AGENTIC CODING, CLI WORKFLOWS & DEV SETUPS

How to Configure MCP Servers in Google Antigravity CLI and Claude Code

Published Oct 16, 2026 • 4 min read • 37 readers

Key Takeaways & Quick Direct Answer

Model Context Protocol (MCP) allows local AI agents like Google Antigravity CLI and Claude Code to securely read databases, search GitHub issues, query web APIs, and execute local tools through a standardized open standard.

Locating the Config File

For Antigravity, open ~/.antigravity/settings.json. For Claude Code, configuration is handled inside ~/.claude.json or via the 'claude mcp add' command.

Adding a PostgreSQL or Supabase MCP Server: Add an entry under the 'mcpServers' object pointing to the official postgres MCP runner: specify the command 'npx -y @modelcontextprotocol/server-postgres' and supply your connection string as an environment variable.

Adding GitHub MCP

Use '@modelcontextprotocol/server-github' with a personal access token so your agent can inspect pull requests, read closed issues, and push branches directly.

Testing the Connection

Run 'agy mcp list' or 'claude mcp list' to confirm all registered servers show green status indicators.

Security Precaution

Never store live production write credentials in your local MCP config. Use a read-only replica or staging database credential to prevent unintended data wipes.

RunAnAi Takeaway

With MCP configured, your coding agent goes from simply writing code snippets to querying your real database schemas and resolving actual GitHub issues without manual copy-pasting.