Opik MCP vs Cortex RMCP
A side-by-side look at the Opik MCP and Cortex RMCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Opik MCP for monitoring work as a local process; choose Cortex RMCP for monitoring as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Opik MCP when
- You need dedicated capabilities in the Monitoring domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
OPIK_URL, OPIK_API_KEY, COMET_URL_OVERRIDE, OPIK_WORKSPACE, OPIK_MCP_ANALYTICS_SOURCE. - You want tools like
read_skill.
Choose Cortex RMCP when
- You need dedicated capabilities in the Monitoring domain.
- You prefer a local stdio subprocess transport.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Monitoring | Monitoring |
| Quality signal | 57/100 · Good | 44/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | OPIK_URLOPIK_API_KEYCOMET_URL_OVERRIDEOPIK_WORKSPACEOPIK_MCP_ANALYTICS_SOURCE | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 225 | 4 |
| Directory activity | 3 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 1 | Not listed |
| Full listing | View Opik MCP | View Cortex RMCP |
Tools & capabilities
Opik MCP tools 1
read_skillRead one of the Opik agent skills bundled with this server
Cortex RMCP 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.
Opik MCP
{
"mcpServers": {
"comet-ml-opik-mcp": {
"command": "uvx",
"args": [
"opik@latest"
],
"env": {
"OPIK_URL": "YOUR_OPIK_URL_HERE",
"OPIK_API_KEY": "YOUR_OPIK_API_KEY_HERE",
"COMET_URL_OVERRIDE": "YOUR_COMET_URL_OVERRIDE_HERE",
"OPIK_WORKSPACE": "YOUR_OPIK_WORKSPACE_HERE",
"OPIK_MCP_ANALYTICS_SOURCE": "YOUR_OPIK_MCP_ANALYTICS_SOURCE_HERE"
}
}
}
}
Cortex RMCP
{
"mcpServers": {
"cortex-rmcp": {
"command": "npx",
"args": [
"-y",
"@dinglebear/cortex"
]
}
}
}
Frequently asked questions
Opik MCP is categorized under Monitoring and uses a local stdio subprocess. Cortex RMCP belongs to Monitoring and uses a local stdio subprocess. Pick Opik MCP for monitoring work and Cortex RMCP for monitoring.
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.
Opik MCP is listed as free. Auth: api key required. Cortex RMCP 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 comet-ml-opik-mcp and cortex-rmcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Opik MCP has a quality signal of 57/100 (Good) with 3 views, 0 installs and 225 GitHub stars. Cortex RMCP has 44/100 (Fair) with 1 views, 0 installs and 4 GitHub stars.