Somvia vs Spanlens

A side-by-side look at the Somvia and Spanlens MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

S
SomviaMonitoring · Remote HTTP/SSE
Private Apple Health metrics and workout detail for ChatGPT, Claude, and any MCP client.39FairAuth: oauth 2.0
Spanlens logoSpanlensMonitoring · Local subprocess (stdio)Query your Spanlens LLM observability from any MCP client. 7 read tools for request logs, agent traces, cost stats, anomalies, model-savings, and per-user analytics across OpenAI, Anthropic, and Gemini. Open source, self-hostable. npx -y @spanlens/mcp-server57GoodAuth: api key required

Verdict: choose Somvia for monitoring work over a hosted endpoint; choose Spanlens for monitoring as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

S
Choose Somvia when

  • You need dedicated capabilities in the Monitoring domain.
  • You prefer a remote HTTP/SSE transport.
  • Its auth model fits you: OAuth 2.0.
Explore Somvia

Spanlens logoChoose Spanlens 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: SPANLENS_API_KEY.
Explore Spanlens

Feature & specification comparison

Rows where the two servers differ are marked.

Spec
S
Somvia
Spanlens logoSpanlens
CategoryMonitoringMonitoring
Quality signal39/100 · Fair57/100 · Good
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthOAuth 2.0API key required
PricingNot declaredFree
Required env varsNone listedSPANLENS_API_KEY
Verified ownerCommunity listingCommunity listing
GitHub stars—13
Directory activity 0 views 0 installs 0 upvotes 5 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Somvia tools

No tool names declared yet. Check the project README from the listing page.

Spanlens 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.

Somvia

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "somvia": {
      "command": "npx",
      "args": [
        "-y",
        "somvia"
      ]
    }
  }
}

Spanlens

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "spanlens-spanlens-2": {
      "command": "npx",
      "args": [
        "-y",
        "@spanlens/cli"
      ],
      "env": {
        "SPANLENS_API_KEY": "YOUR_SPANLENS_API_KEY_HERE"
      }
    }
  }
}

Frequently asked questions

Somvia is categorized under Monitoring and uses a remote HTTP/SSE transport. Spanlens belongs to Monitoring and uses a local stdio subprocess. Pick Somvia for monitoring work and Spanlens 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.

Somvia has no declared pricing — check the project's own site. Auth: oauth 2.0. Spanlens is listed as free. Auth: api key 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 somvia and spanlens-spanlens-2 as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Somvia has a quality signal of 39/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Spanlens has 57/100 (Good) with 5 views, 0 installs and 13 GitHub stars.