MCP Server Langfuse vs Openrouter
A side-by-side look at the MCP Server Langfuse and Openrouter MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose MCP Server Langfuse for conversational ai work over a hosted endpoint; choose Openrouter 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 Server Langfuse when
- You need dedicated capabilities in the Conversational AI domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY, LANGFUSE_BASEURL. - You want tools like
get-prompts, get-prompt.
Choose Openrouter when
- You need dedicated capabilities in the Conversational AI domain.
- You prefer a local stdio subprocess transport.
- You want tools like
list_models, get_model, compare_models.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Conversational AI | Conversational AI |
| Quality signal | 57/100 · Good | 56/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | API key required | Not declared |
| Pricing | BYOK (pay the provider) | Not declared |
| Required env vars | LANGFUSE_PUBLIC_KEYLANGFUSE_SECRET_KEYLANGFUSE_BASEURL | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 176 | 0 |
| Directory activity | 4 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 2 | 3 |
| Full listing | View MCP Server Langfuse | View Openrouter |
Tools & capabilities
MCP Server Langfuse tools 2
get-promptsList available promptsget-promptRetrieve and compile a specific prompt
Openrouter tools 3
list_modelsList LLMs from the OpenRouter catalog (~340 models across all major providers) with normalized $/1M-token pricing, context windows, and modality. Filter by search, free-only, minimum context, or modality (e.g. "image" for vision models). Sorted cheapest-first by completion price. Keyless.get_modelGet full details for one OpenRouter model by id — normalized $/1M pricing (prompt, completion, plus per-request/image/web-search costs), context window, modality, supported parameters, tokenizer, knowledge cutoff. e.g. id "anthropic/claude-sonnet-4.5". Keyless.compare_modelsSide-by-side comparison of pricing ($/1M tokens), context window, and modality for 2-5 OpenRouter models. Answers "is claude-sonnet-4.5 cheaper than gpt-4o". Keyless.
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 Server Langfuse
{
"mcpServers": {
"langfuse-mcp-server-langfuse": {
"command": "npx",
"args": [
"-y",
"langfuse-mcp-server-langfuse"
],
"env": {
"LANGFUSE_PUBLIC_KEY": "YOUR_LANGFUSE_PUBLIC_KEY_HERE",
"LANGFUSE_SECRET_KEY": "YOUR_LANGFUSE_SECRET_KEY_HERE",
"LANGFUSE_BASEURL": "YOUR_LANGFUSE_BASEURL_HERE"
}
}
}
}
Openrouter
{
"mcpServers": {
"openrouter": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-openrouter"
]
}
}
}
Frequently asked questions
MCP Server Langfuse is categorized under Conversational AI and uses a remote HTTP/SSE transport. Openrouter belongs to Conversational AI and uses a local stdio subprocess. Pick MCP Server Langfuse for conversational ai work and Openrouter 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 Server Langfuse is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. Openrouter 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 langfuse-mcp-server-langfuse and openrouter as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MCP Server Langfuse has a quality signal of 57/100 (Good) with 4 views, 0 installs and 176 GitHub stars. Openrouter has 56/100 (Good) with 1 views, 0 installs and 0 GitHub stars.