MCP setup for Claude, Cursor, Codex and VS Code
BRONTIR is a streamable MCP server: there is nothing to download and no key to paste. Pick your client below and follow the screens; most of them take under a minute. Your client opens a browser tab to sign in, so have an account ready before you start.
https://research.brontir.com/api/mcpThe one address every client needs. Most of them sign you in with Google, with nothing else to paste. A client without OAuth sends an API key from your account instead.
Pick your client
Claude Desktop & Claude Web
The desktop app and claude.ai: a custom connector, signed in with Google.
Codex
The ChatGPT desktop app in Codex mode, added in Settings and signed in with Google.
Claude Code
One claude mcp add command, then sign in from /mcp.
Codex CLI
codex mcp add in the terminal, and the sign-in starts on its own.
Cursor
A few lines in ~/.cursor/mcp.json, then Authenticate.
VS Code
MCP: Add Server from the Command Palette, then start the server and sign in.
Cline
Customize → MCP in the Cline panel, no config file.
Grok
A custom connector at grok.com/connectors, or one command in Grok Build.
Antigravity
The MCP config file, then a sign-in code to paste back.
Kiro
The user MCP config, with an empty oauthScopes.
Any other client
Anything that speaks streamable HTTP: one URL and an API key.