Downtrace tells you when a change breaks the performance of your Node.js backend.
Connect Runs on your machine
claude mcp add downtrace -e DOWNTRACE_URL=<DOWNTRACE_URL> -e DOWNTRACE_TOKEN=<DOWNTRACE_TOKEN> -- npx -y @downtrace/[email protected]
{
"mcpServers": {
"downtrace": {
"command": "npx",
"args": [
"-y",
"@downtrace/[email protected]"
],
"env": {
"DOWNTRACE_URL": "<DOWNTRACE_URL>",
"DOWNTRACE_TOKEN": "<DOWNTRACE_TOKEN>"
}
}
}
}
{
"mcpServers": {
"downtrace": {
"command": "npx",
"args": [
"-y",
"@downtrace/[email protected]"
],
"env": {
"DOWNTRACE_URL": "<DOWNTRACE_URL>",
"DOWNTRACE_TOKEN": "<DOWNTRACE_TOKEN>"
}
}
}
}
{
"servers": {
"downtrace": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@downtrace/[email protected]"
],
"env": {
"DOWNTRACE_URL": "<DOWNTRACE_URL>",
"DOWNTRACE_TOKEN": "<DOWNTRACE_TOKEN>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
DOWNTRACE_URLRequired | The address of your Downtrace |
DOWNTRACE_TOKENOptional, secret | An access credential of the project, of level operate; without it the server is read-only |
Details
| Package | @downtrace/[email protected] (NPM, stdio) |
| First published | 9 Nov 2026 |
| Last updated | 9 Nov 2026 |
| Registry name | io.github.RadW2020/downtrace |
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