query_frontier — Fillin MCP Tool Read-only
query_frontier
(query frontier) is one of 17 tools on the
Fillin
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call query_frontier from your client
- Claude Code Fillin query_frontier run in your project directory
- Claude Desktop Fillin query_frontier ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Fillin query_frontier ~/.cursor/mcp.json
- VS Code Fillin query_frontier .vscode/mcp.json
- Zed Fillin query_frontier ~/.config/zed/settings.json
- Windsurf Fillin query_frontier ~/.codeium/windsurf/mcp_config.json
- Cline Fillin query_frontier ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Fillin query_frontier ~/.gemini/settings.json
- Grok Fillin query_frontier .mcp.json (in your project root)
- ChatGPT Fillin query_frontier Settings → Connectors → Advanced → Developer mode
- Claude.ai Fillin query_frontier Settings → Connectors → Add custom connector
- LangChain Fillin query_frontier pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http fillin https://fillin.glyphapi.dev/mcp/Other tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.