MCP Bench Router vs Promptheus
A side-by-side look at the MCP Bench Router and Promptheus MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose MCP Bench Router for conversational ai work as a local process; choose Promptheus for conversational ai as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MCP Bench Router when
- You need dedicated capabilities in the Conversational AI domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
OPENROUTER_API_KEY. - You want tools like
get_best_design_model, get_leaderboard, query_design_model.
Choose Promptheus when
- You need dedicated capabilities in the Conversational AI domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
GOOGLE_API_KEY, ANTHROPIC_API_KEY, OPENAI_API_KEY, GROQ_API_KEY, DASHSCOPE_API_KEY, ZHIPUAI_API_KEY, OPENROUTER_API_KEY. - You want tools like
refine_prompt, tweak_prompt, list_models.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Conversational AI | Conversational AI |
| Quality signal | 56/100 · Good | 55/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | OPENROUTER_API_KEY | GOOGLE_API_KEYANTHROPIC_API_KEYOPENAI_API_KEYGROQ_API_KEYDASHSCOPE_API_KEYZHIPUAI_API_KEYOPENROUTER_API_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 7 | 17 |
| Directory activity | 2 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 4 | 5 |
| Full listing | View MCP Bench Router | View Promptheus |
Tools & capabilities
MCP Bench Router tools 4
get_best_design_modelGet the current #1 design model from designarena.ai's crowdsourced leaderboard, optionally filtered by category. Returns model info and OpenRouter availability.get_leaderboardBrowse the full designarena.ai design model rankings with optional category filter and pagination. Shows Elo ratings, win rates, and OpenRouter availability.query_design_modelSend a design prompt to the best available model on OpenRouter, automatically selected from designarena.ai rankings. Skips models not available on OpenRouter. Requires OPENROUTER_API_KEY.query_specific_modelSend a design prompt to a specific model via OpenRouter. Accepts either an OpenRouter model ID (e.g. 'anthropic/claude-sonnet-4-5-20250514') or a Design Arena model name (e.g. 'claude-sonnet-4-5'). Requires OPENROUTER_API_KEY.
Promptheus tools 5
refine_promptIntelligent prompt refinement with optional clarification questions.tweak_promptApply targeted modifications to existing prompts.list_modelsDiscover available models from configured providers.list_providersCheck provider configuration status.validate_environmentTest environment configuration and API connectivity.
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.
MCP Bench Router
{
"mcpServers": {
"mcp-bench-router": {
"command": "npx",
"args": [
"-y",
"mcp-bench-router"
],
"env": {
"OPENROUTER_API_KEY": "YOUR_OPENROUTER_API_KEY_HERE"
}
}
}
}
Promptheus
{
"mcpServers": {
"promptheus": {
"command": "uvx",
"args": [
"promptheus"
],
"env": {
"GOOGLE_API_KEY": "YOUR_GOOGLE_API_KEY_HERE",
"ANTHROPIC_API_KEY": "YOUR_ANTHROPIC_API_KEY_HERE",
"OPENAI_API_KEY": "YOUR_OPENAI_API_KEY_HERE",
"GROQ_API_KEY": "YOUR_GROQ_API_KEY_HERE",
"DASHSCOPE_API_KEY": "YOUR_DASHSCOPE_API_KEY_HERE",
"ZHIPUAI_API_KEY": "YOUR_ZHIPUAI_API_KEY_HERE",
"OPENROUTER_API_KEY": "YOUR_OPENROUTER_API_KEY_HERE"
}
}
}
}
Frequently asked questions
MCP Bench Router is categorized under Conversational AI and uses a local stdio subprocess. Promptheus belongs to Conversational AI and uses a local stdio subprocess. Pick MCP Bench Router for conversational ai work and Promptheus for conversational ai.
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.
MCP Bench Router has no declared pricing — check the project's own site. Promptheus has no declared pricing — check the project's own site. 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 mcp-bench-router and promptheus as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MCP Bench Router has a quality signal of 56/100 (Good) with 2 views, 0 installs and 7 GitHub stars. Promptheus has 55/100 (Good) with 0 views, 0 installs and 17 GitHub stars.