Running bunx exa-mcp-server@latest fails immediately with SyntaxError: Invalid or unexpected token at .smithery/index.cjs:2, pointing at the #!/usr/bin/env node line. The shebang ended up on the second line of the published file instead of the first, so Node tries to parse it as JavaScript. Node 22, via bunx on Linux.

The published npm tarball had the #!/usr/bin/env node shebang on line 2 of .smithery/index.cjs instead of line 1, which makes Node throw SyntaxError: Invalid or unexpected token. Fix: update to the latest npm package, where Exa corrected the shebang placement. If you need it working immediately, switch to the remote MCP server instead of the local install: remove the old config (claude mcp remove exa) and add the remote one (`claude mcp add exa -e [credential] pointing at mcp.exa.ai/mcp), which the reporter confirmed works. Source: https://github.com/exa-labs/exa-mcp-server/issues/62