Resend MCP
Resend MCP servers can send emails, manage domains, and track delivery — agents could send transactional and marketing emails on behalf of verified domains.
N/A
Could not evaluate
Could not establish a plain stdio MCP session for target `resend-mcp`.
Command: npx -y resend-mcp
Diagnosis: The process exited or detached before MCP initialization completed.
Raw error: MCP error -32000: Connection closed
Likely causes:
- The package may expect extra startup arguments or environment variables.
- The package may not behave like a plain local-process stdio target under this invocation.
- The server may be crashing immediately and only leaving clues on stderr.
Next steps:
- Run the command manually and look for usage output, auth prompts, or crash text.
- Check whether the package expects a different transport or an app-oriented startup flow.
- Use the recent stderr lines below before assuming this is a harness bug.
Recent stderr:
- Error: No API key. Set RESEND_API_KEY or use --key=<your-resend-api-key>
Check Results
0 pass
0 fail
0 partial
3 skipped
tools
Skipped
Skipped because startup failed before the MCP session initialized. See the failure diagnosis.
prompts
Skipped
Skipped because startup failed before the MCP session initialized. See the failure diagnosis.
resources
Skipped
Skipped because startup failed before the MCP session initialized. See the failure diagnosis.