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Query Spanlens LLM observability from Cursor, Claude Desktop, or Continue via MCP.
npx @getmcp/cli add io.github.spanlens/mcp-serverRequires Node.js 18+. Community-contributed server. Review source before installing.
SPANLENS_API_KEYSpanlens API key. Must be a scope=public key (sl_live_pub_*) issued from the Public Keys card at https://spanlens.io/projects — the server refuses to start with a full-access sl_live_* key.
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"io.github.spanlens/mcp-server": {
"command": "npx",
"args": [
"-y",
"@spanlens/mcp-server"
],
"env": {
"SPANLENS_API_KEY": "",
"SPANLENS_BASE_URL": "https://api.spanlens.io"
}
}
}
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