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MCP server · Browser

Perflens

by · github.com/harshithsunku/perflens

Real-time Linux perf profiling in your browser. A tiny static C agent streams perf data from any ARM or x86 Linux device, big-endian included, and a Python server renders live flame graphs, function tables and line-level annotated source. Session replay, perf.data import, and an MCP server for AI agents.

Unclaimed aarch64addr2linearmdevtoolsembeddedflamegraphlinuxmcpobservabilityperfperformance-analysisprofilingpythonrealtimeserver-sent-eventsx86-64zstd
InstallView source
34Low

Scored 27 days ago · breakdown

About Perflens

Perflens is an MCP server published by harshithsunku in the Browser category: real-time Linux perf profiling in your browser. A tiny static C agent streams perf data from any ARM or x86 Linux device, big-endian included, and a Python server renders live flame graphs, function tables and line-level annotated source. Session replay, perf.data import, and an MCP server for AI agents.

The repository has 1 stars and 0 forks, with the last commit a month ago. Recent commit activity is the strongest signal that reported issues will get attention.

Install

From source
git clone https://github.com/harshithsunku/perflens

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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Security checks

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Releases

v0.12.0v0.12.0 · 14 Sep 2026PerfLens 0.12.0 Highlights The sixth agent unfreeze, decided 2026-09-14 for a stabilization pass over the whole project. The wire protocol is unchanged: every frame type, command and hello field is as in 0.11.0, and a 0.11.0 server drives…
v0.11.0v0.11.0 · 13 Sep 2026PerfLens 0.11.0 Highlights First hands-on validation on **big-endian** hardware — a big-endian ARMv7 embedded target (`armv7b`, single-core, kernel 4.4, no hardware PMU, no SSH, no internet from the device). Byte order turned out to be…
v0.10.0v0.10.0 · 15 Aug 2026PerfLens 0.10.0 Highlights The pre-launch stabilization pass. The project has never been shared publicly; this closes what an audit turned up before it is. Upgrading — read this first.** The agent now requires a peer to authenticate, and…
v0.9.0v0.9.0 · 14 Aug 2026PerfLens 0.9.0 Highlights The hands-on validation pass 0.8.0 shipped without. Everything below was found by running the profiler against a real 25-thread workload and looking at the output — not by an assertion. The second half of the pass…
v0.8.0v0.8.0 · 13 Aug 2026PerfLens 0.8.0 Highlights A stabilization release. The feature set was frozen on 2026-08-13 with the MCP server as the last capability added; everything since has been hygiene, CI hardening and documentation truth. It also publishes the…
Questions

About Perflens

How do I install Perflens?

No package has been published for this server, so install it from source: clone the repository and follow its README.

Is Perflens safe to use with an AI agent?

Its trust score is 34 out of 100 (low). Conduid hasn't run static security checks on this repository yet, so review the source yourself before granting it credentials. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Perflens still maintained?

Yes — the latest release is v0.12.0 (14 Sep 2026), and the last commit was a month ago. The repository has 1 stars.