Antigravity is Google's agent-first IDE and its Go-built CLI, and both share a single MCP configuration across the whole suite. That makes the choice of servers a one-time decision that follows you everywhere — so it's worth picking the four to six that earn their slot rather than installing everything. These ten are the ones we keep coming back to, grouped by job.
Code & repos
- Filesystem — read and write project files; the backbone of almost every setup. See the filesystem setup guide and the server entry.
- GitHub — issues, PRs, code search and review, all from the agent. See GitHub MCP server setup.
- Sourcegraph — semantic code search across large repos, which pays off once a project outgrows local grep. See the entry.
Data
- Postgres — query your schema and data safely, ideally read-only. See Postgres MCP setup.
- BigQuery — natural for an Antigravity user already inside Google Cloud; analytics without leaving the agent. See the entry.
- Supabase — Postgres, auth and storage behind one server for full-stack work. See the entry.
Web & automation
- Exa — live web grounding tuned for developer and research queries. See the entry.
- Firecrawl — crawl and clean whole sites into context. See Firecrawl setup.
- Playwright — drive a real browser to test and reproduce bugs. See Playwright setup.
Reasoning aids
- Memory — persist facts across sessions so the agent stops re-learning your project. See the entry.
The Antigravity-specific advantage
Because Antigravity leans into Google's own MCP surface, the core Cloud services expose connections over MCP and the CLI ships a full client for Google Workspace and Gemini. To reach managed Vertex AI resources — Model Garden, notebooks, prompts — add the Gemini Enterprise remote MCP server on top of these ten.
Set it up once
All of these go in Antigravity's shared mcp_config.json — global in ~/.gemini/config/, or workspace-local in .agents/ to share with a team. The Antigravity CLI MCP setup walks through the config and the current environment-variable gotcha. Rather than assemble by hand, grab a tested combination from our curated loadouts or the backend developer stack — every server here is categorised and vetted.