Claude Code connects to MCP servers declared in .mcp.json at the project root (project scope) or via the claude mcp add CLI. As of August 2026, .mcp.json uses the mcpServers schema with stdio entries.
The Codex CLI (the codex binary) declares MCP servers in config.toml under [mcpservers.NAME] sections. As of August 2026, the codex mcp add command writes these entries for you.
Cursor connects to MCP servers via .cursor/mcp.json at the project root or the global /.cursor/mcp.json. As of August 2026 the cursor mcp add command also works.
OpenCode (opencode.ai) declares MCP servers in the mcp section of opencode.json (project) or /.config/opencode/opencode.json (global). As of August 2026, local servers use type: "local" with command as an argv array.
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originalApache-2.0
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: