What is contextburn?
contextburn is a MCP server by arsentev-ai that measures Claude Code session efficiency: the share of tokens that became output versus re-read context, by tokens and cost, from local transcripts. It is listed under Cloud & infra and has no public popularity data yet.
| Type | Mcp server |
|---|---|
| Author | arsentev-ai |
| Repository | arsentev-ai/contextburn |
| Popularity | no public popularity data yet |
| Category | Cloud & infra |
| Security | Low risk (92/100) |
| Rank | #4,175 of 4,418 MCP servers; #252 in Cloud & infra |
| License | MIT |
| Last commit | 2026-10-06 |
| Runs | Locally |
| Language | Python |
| Platforms | macOS, Linux |
Is contextburn safe to install?
contextburn scores 92/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 4 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| Needs an API key or account login | Note |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install contextburn?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/arsentev-ai/contextburn
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add contextburn -- <command from README> claude mcp add --transport http contextburn <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs contextburn for you:
Add the "contextburn" MCP server from https://github.com/arsentev-ai/contextburn to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.