What Google Antigravity does
Google Antigravity supports MCP in its App, CLI, and IDE, according to the Antigravity MCP documentation. Its CLI supports both local stdio processes and remote host MCP server configurations. The documented MCP features focus on giving agents and editors access to developer tools, databases, parsers, and remote APIs.
How Antigravity connects to MCP servers
Antigravity can use MCP servers to fetch structured context or execute safe actions. Live data from connected servers can inform its reasoning and suggestions, as explained in the Antigravity MCP documentation. The CLI includes an interactive MCP manager opened by typing /mcp in the prompt panel. Remote servers must use Streamable HTTP transport.
Where Antigravity keeps MCP configuration
The Antigravity CLI reads global configuration from ~/.gemini/config/mcp_config.json. Workspace configuration lives in <workspace>/.agents/mcp_config.json. These paths and their scope are documented in the Antigravity MCP documentation. Remote configurations can include custom HTTP headers, such as an Authorization header.
What a personal knowledge base adds
A personal knowledge base gives an agent context beyond the current workspace. KnowMan saves articles and links, reads and tags them, answers questions with citations, and keeps memories. Its MCP tools cover searching saved items, asking questions, reading one item, saving links, viewing recent items, and accessing memories. Learn more in the guide to using a personal knowledge base.
Connecting KnowMan through MCP
KnowMan provides a hosted remote MCP server at https://api.knowman.io/mcp using Streamable HTTP. You can sign in with OAuth or send an API key as Authorization: Bearer <key>, as described in the KnowMan MCP repository. Antigravity supports remote MCP servers with custom HTTP headers, including authorization headers, according to the Antigravity MCP documentation. A KnowMan account is required.
What you can do with your library
Through the KnowMan MCP tools, Antigravity can search saved items, ask questions, read readable content from one item, save a URL with an optional note, list recent items, and access memories. The MCP server exposes kb_search, kb_ask, kb_get_item, kb_save, kb_recent, and kb_memories, as listed in the KnowMan MCP repository. See connecting AI tools to your notes for the broader workflow.
Where KnowMan fits
KnowMan fits when Antigravity needs context from reading you chose to keep, rather than only the files in its current workspace. It can serve as a personal source for saved articles, cited answers, and durable memories. For more background, see MCP servers and knowledge bases and persistent memory for AI agents.
Questions people ask
What is Google Antigravity's knowledge base connection?
It is an MCP connection that can provide Antigravity with context and actions from an external service. Antigravity supports MCP in its App, CLI, and IDE, as described in the Antigravity MCP documentation.
How does Google Antigravity connect to remote MCP servers?
The CLI uses remote server configurations with Streamable HTTP transport. Custom HTTP headers, including an Authorization header, can be included in the configuration, according to the Antigravity MCP documentation.
Can Google Antigravity use the hosted KnowMan MCP server?
The hosted KnowMan endpoint is https://api.knowman.io/mcp, and it uses Streamable HTTP. It supports OAuth or an API key sent as Authorization: Bearer <key>, as documented in the KnowMan MCP repository.
What can KnowMan add to Antigravity?
KnowMan can provide access to saved articles and links, cited answers, and memories through its MCP tools. The available tools cover searching, asking, reading, saving, recent items, and memories, as listed in the KnowMan MCP repository.