A side-by-side look at the Keryx and Research Toolkit MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Keryx for research work over a hosted endpoint; choose Research Toolkit for research. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Keryx when
You need dedicated capabilities in the Research domain.
No tool names declared yet. Check the project README from the listing page.
Research Toolkit tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
No confirmed install command for Research Toolkit yet — follow the setup steps linked from its listing page rather than a guessed package name.
Frequently asked questions
Keryx is categorized under Research and uses a remote HTTP/SSE transport. Research Toolkit belongs to Research and uses an install path we have not confirmed yet. Pick Keryx for research work and Research Toolkit for research.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Research Toolkit has no confirmed install command yet — follow its own setup instructions.
Keryx has no declared pricing — check the project's own site. Research Toolkit is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add keryx and research-toolkit as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Keryx has a quality signal of 41/100 (Fair) with 0 views, 0 installs and 4 GitHub stars. Research Toolkit has 49/100 (Fair) with 0 views, 0 installs and 263 GitHub stars.