spanlens-mcp
Rank #4,492io.github.spanlens/mcp-server
Query Spanlens LLM observability from Cursor, Claude Desktop, or Continue via MCP.
spanlens-mcp is a Model Context Protocol (MCP) server published by spanlens. It ranks #4,492 of 107,144 servers tracked on MCP Toplist, and its repository has 11 GitHub stars. spanlens-mcp is listed across 2 registries — Official MCP and Glama, with 1 tracked version. It was first listed on Jun 4, 2026 and most recently updated on Jun 4, 2026.
Ranks ahead of 102,652 of 107,144 servers on MCP Toplist.
Use spanlens-mcp
Requires user-supplied configuration before first use — typically an API key, token or connection string set via environment variables.
claude mcp add spanlens -e "SPANLENS_API_KEY=<your SPANLENS_API_KEY>" -e "SPANLENS_BASE_URL=<your SPANLENS_BASE_URL>" -- npx -y @spanlens/mcp-serverReplace each placeholder with your own value before saving.
[mcp_servers.spanlens]
command = "npx"
args = ["-y", "@spanlens/mcp-server"]
[mcp_servers.spanlens.env]
SPANLENS_API_KEY = "<your SPANLENS_API_KEY>"
SPANLENS_BASE_URL = "<your SPANLENS_BASE_URL>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"spanlens": {
"command": "npx",
"args": [
"-y",
"@spanlens/mcp-server"
],
"env": {
"SPANLENS_API_KEY": "<your SPANLENS_API_KEY>",
"SPANLENS_BASE_URL": "<your SPANLENS_BASE_URL>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"spanlens": {
"command": "npx",
"args": [
"-y",
"@spanlens/mcp-server"
],
"env": {
"SPANLENS_API_KEY": "<your SPANLENS_API_KEY>",
"SPANLENS_BASE_URL": "<your SPANLENS_BASE_URL>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"spanlens": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@spanlens/mcp-server"
],
"env": {
"SPANLENS_API_KEY": "<your SPANLENS_API_KEY>",
"SPANLENS_BASE_URL": "<your SPANLENS_BASE_URL>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"spanlens": {
"command": "npx",
"args": [
"-y",
"@spanlens/mcp-server"
],
"env": {
"SPANLENS_API_KEY": "<your SPANLENS_API_KEY>",
"SPANLENS_BASE_URL": "<your SPANLENS_BASE_URL>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"spanlens": {
"command": "npx",
"args": [
"-y",
"@spanlens/mcp-server"
],
"env": {
"SPANLENS_API_KEY": "<your SPANLENS_API_KEY>",
"SPANLENS_BASE_URL": "<your SPANLENS_BASE_URL>"
}
}
}
}Replace each placeholder with your own value before saving.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/io.github.spanlens%2Fmcp-server)<a href="https://mcptoplist.com/server/io.github.spanlens%2Fmcp-server"><img src="https://mcptoplist.com/badge/io.github.spanlens%2Fmcp-server.svg" alt="MCP Toplist: Top 5% of 107,144" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 2 registries
spanlens
Available versions (1)
| Version | Published |
|---|---|
| 0.1.1 | Jun 4, 2026 |
Frequently asked questions
- Who maintains spanlens-mcp?
- spanlens-mcp is maintained by spanlens, which publishes 2 MCP servers (1 total version) tracked on MCP Toplist.
- Is spanlens-mcp listed on the Official MCP Registry?
- Yes — spanlens-mcp is listed on the Official MCP Registry, alongside Glama.
- How many versions does spanlens-mcp have?
- MCP Toplist tracks 1 version of spanlens-mcp, most recently published on Jun 4, 2026.
- Where can I find the source code for spanlens-mcp?
- The source code for spanlens-mcp is hosted at github.com/spanlens/Spanlens.