Free .mcp.json / MCP config builder for Claude Code

Claude Code connects to external tools through MCP servers. Project teams share them in a .mcp.json file at the repository root; you can also keep personal servers under the mcpServers key in ~/.claude.json. Fill in the form to generate either file shape, plus the matching claude mcp add / claude mcp add-json commands.

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Your config

Equivalent CLI commands

Paste these into a terminal outside a Claude session. After --, everything is the server command (stdio only).

How to use it

Project scope: save the JSON as .mcp.json in the project root (not inside .claude/). Commit it if the team should share the servers.
User scope: merge the mcpServers object into ~/.claude.json (or run the CLI with --scope user). On Windows that file is %USERPROFILE%\.claude.json.
Restart: Claude Code reads MCP config at session start. Exit and start a new session after editing the file.
Approve project servers: the first time Claude Code sees a project-scoped server it asks you to approve it (so a cloned repo can't launch processes without consent). Approve the prompt, or run /mcp later.
Check status: inside a session run /mcp; from the shell run claude mcp list or claude mcp get <name>.
HTTP vs SSE: prefer type: "http" for remote servers. SSE is deprecated; use it only when a service still exposes SSE only. streamable-http is accepted as an alias for http.
URL needs a type: an entry with a url but no type is treated as stdio and skipped. Always set type to http, sse or ws for remote servers.
Server names: letters, numbers, hyphens and underscores only (Claude Code rejects other characters).
Secrets: put API keys in env or headers with ${VAR} / ${VAR:-default} expansion rather than committing real tokens to a shared .mcp.json.

Sources: Claude Code MCP reference and MCP quickstart.

After you connect servers that can send or post, pair this with the hooks & settings.json generator so outbound MCP tools ask or deny before they fire.

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