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Subtrace

Zero code network tracer

Subtrace is a zero-code network tracer. It's like having an inspect element button for your whole infra: when you start a process with Subtrace, you'll see every HTTP request coming in and going out in realtime. Under the hood, it uses BPF to make this possible without any root privileges or code changes. We have ~2.5k stars on Github.
Active Founders
Adhityaa Chandrasekar
Adhityaa Chandrasekar
Founder
Previously worked at Google as a software engineer on Kubernetes internals and GKE infra monitoring. University of Waterloo and IIT Madras alum.
Sachin Sridhar
Sachin Sridhar
Founder
Cofounder and CTO at Subtrace. Previously a software engineer at Microsoft, where I worked on Power BI/Microsoft Fabric. Studied computer science at IIT Madras.
Company Launches
Subtrace: Resolve production issues in minutes, not months
See original launch post

Hey, this is Adhityaa and Sachin đź‘‹

We built Subtrace to give backend teams full visibility into every request—payload, latency, status, headers, logs—all in one place. YC companies like Trieve (W24) are already using Subtrace in production to improve their incident resolution time from months to minutes (read their case study).

Problem

Today's backend monitoring tools like Sentry and OpenTelemetry leave out the most crucial details of each request, forcing backend developers to search through logs to root cause issues.

Solution

Subtrace brings every backend request into one clear, Chrome DevTools-like interface so that you can resolve issues fast—often before your first coffee. Here's how it works:

🔍 Search & Filter

Quickly search for the requests that matter using simple filters

🔦 Inspect & Analyze

Click any request to view full details like payload, headers, latency

🎥 Record & Replay

Reproduce issues easily by replaying prod requests elsewhere

đź’¬ Share & Collaborate

Share detailed snippets with your team to solve issues together

You can get Subtrace working with just a single command.

Try for yourself: Docs →

Team

We met 10+ years ago as undergrads and we've been great friends ever since. Adhityaa went to IIT Madras, the University of Waterloo and worked at Google. Sachin went to IIT Madras and worked at Microsoft.

Ask

Are you a backend / full stack developer? Do you run an engineering team?

YC companies are already using Subtrace today, we think you'll love it.

Email founders@subtrace.dev (or submit this form) and we'll show you a demo!

Subtrace
Founded:2024
Batch:Winter 2025
Team Size:2
Status:
Active
Location:San Francisco
Primary Partner:Brad Flora