For indie hackers & solo founders

Your users shouldn't
be your
monitoring system.

A 3am bug can quietly churn users before you wake up. DeepTracer is the $19/mo AI agent that watches your app while you sleep — catches errors, investigates root causes, and alerts you before your MRR takes the hit.

Start free — 5 lines of code See it catch a bug →

5 min setup

$19/mo unlimited projects

24/7 agent watching

free to start

Incident Report

✓ Resolved

Stripe Webhook TypeError

47 hits

Cannot read properties of null (reading 'email')
webhook.ts · line 23 · payment processing flow

2:47 AM

Error detected

First occurrence · payment webhook · 0 users notified

2:49 AM

AI investigation complete

Root cause: missing null check on customer.email

2:49 AM

Slack alert sent

Root cause + suggested fix · you're still asleep

8:12 AM

Fix deployed

Null check added · payments processing normally

8:14 AM

Agent confirmed healthy

Error rate back to 0 · all webhooks processing

MRR lost

users affected

cancellations

without DeepTracer

"Hey, my payment failed twice last night — is your app broken?? I'm going to cancel if this isn't fixed."

— user email · 9:14 AM · 3 others like this

The reality of shipping solo

You shipped.
Now who's watching?

You're a team of one. You can't be awake at 3am watching logs. Here's what happens instead.

You found out from a user.

Your checkout broke at 11pm. By 8am, three people had rage-quit and two tweeted about it. You had no idea until you opened Twitter with your coffee.

Twitter · 3 notifications

@jamescoded_it tried to pay for your app, got a white screen. is this down?

@sarahbuilds checkout is broken btw, fyi

@notmrdave just tried to upgrade, nothing worked...

Your AI features cost more than they make.

A single onChange handler streaming GPT-4 calls cost one founder $290 in 7 hours. He found out when the monthly bill arrived. His MRR was $310.

OpenAI usage · this month

Mon

$2.40

Tue

$3.10

Wed

$290 ⚠

Something broke. You don't know where to start.

A 500 error. No logs. You're not a DevOps engineer. You paste the error into ChatGPT and get generic advice that doesn't apply. You're debugging alone at midnight.

vercel logs · production

11:47:03 ERROR 500 Internal Server Error

11:47:04 ERROR 500 Internal Server Error

...that's all. good luck figuring this out.

DeepTracer handles all three. One agent. $19/mo.

How it works

Five lines of code.
A teammate that never sleeps.

No DevOps experience needed. No config files. No dashboards to learn. Just add DeepTracer and forget about it — until it finds something.

Add 5 lines of code

One install, one file. Works with Next.js, Node.js, Express, or any Vercel app via Log Drain — no code changes at all.

src/instrumentation.ts

import { DeepTracer } from '@deeptracer/nextjs'

export function register() {

DeepTracer.init({

apiKey: process.env.DEEPTRACER_KEY

})

}

→

Your agent starts watching

Events stream in. Errors get grouped and fingerprinted. The agent monitors 24/7 in Guardian Mode — catching issues before users hit them.

DeepTracer agent

Guardian Mode

14,280

events today

errors caught

$1.82

LLM spend

200 GET /api/dashboard · 142ms

500 POST /api/checkout · TypeError

LLM · gpt-4o · 2,847 tokens · $0.04

200 GET /api/users · 38ms

→

Get answers, not alerts

When something breaks, you get a Slack message with the root cause and fix in plain English — not a wall of stack trace to decode at 3am alone.

TypeError: checkout webhook

AI investigated

Why

customer.email is null for guest checkouts — your Stripe handler assumes email always exists.

Fix

Add customer?.email ?? session.customer_details?.email on line 23 of webhook.ts.

Impact

47 failed webhook calls · all guest checkouts since 11:47pm · no revenue processed.

Pricing

Less than one
cancelled subscription.

One churned user at $19/mo pays for a full year of Guardian Mode. One runaway LLM bill pays for a decade.

Reactive Mode

Free

forever · no card needed

✓ 1 project
✓ 25K events / month
✓ 3 AI investigations / month
✓ 10 AI chat messages / month
✓ 1-day log retention
✗ 24/7 ambient monitoring
✗ Slack / email alerts
✗ Unlimited investigations

Start free — try one project

Agent sleeps until you wake it

Questions indie hackers
actually ask

Is 25K events/month enough for my app? ›

For most indie projects: yes. A typical Next.js app with a few hundred monthly active users generates 5K–15K events/month. 25K covers apps up to roughly 500-1,000 MAU with normal usage patterns. If you're tracking every keystroke or streaming logs aggressively you'll hit it faster — but we'll warn you before you get close, and we never cut off monitoring. Overages are $0.50/100K events.

What's the difference between Reactive and Guardian mode? ›

In Reactive Mode (free), your agent only investigates when you manually trigger it — like a doctor you visit. You ask "what's wrong with my checkout?" and it tells you. In Guardian Mode (Pro), your agent monitors 24/7 and investigates automatically when it spots anomalies. It's awake when you're not — which is when bugs actually happen.

How is this different from Sentry? ›

Sentry shows you what broke. DeepTracer tells you why and how to fix it. Sentry gives you a stack trace — you still have to read it, correlate it with your code, and figure out the root cause. DeepTracer's AI agent does that investigation for you and writes a plain-English report. It also tracks LLM costs and usage — Sentry doesn't touch that. And at $19/mo vs Sentry's $26/mo, you get more for less.

What frameworks and stacks does it support? ›

DeepTracer works with any JavaScript or TypeScript app. We have first-class integrations for Next.js, Node.js, Express, and React. If you're on Vercel, the Log Drain integration works with any framework — zero code changes. Python SDK is in progress. If your stack isn't listed, ask us — the core HTTP API accepts events from anything.

Will it slow down my app or cause it to crash? ›

No. The SDK sends events asynchronously — it's never on the critical path of your requests. If the DeepTracer endpoint is unreachable, it fails silently and logs a warning. It cannot crash your app or add meaningful latency. The instrumentation hook runs once at server start, not per-request.

Can I cancel anytime? What happens to my data? ›

Cancel any time from your dashboard — no calls, no forms, no guilt trip. Your data remains accessible until the end of your billing period. After that, logs are deleted per our retention policy. Error investigations are kept for 30 days post-cancellation so you can export anything important. No lock-in, ever.

Your users shouldn't be your monitoring system.

You shipped. Now who's watching?

You found out from a user.

Your AI features cost more than they make.

Something broke. You don't know where to start.

Five lines of code. A teammate that never sleeps.

Add 5 lines of code

Your agent starts watching

Get answers, not alerts

Less than one cancelled subscription.

Questions indie hackers actually ask

Stop finding out about bugs from your users.

Your users shouldn't
be your
monitoring system.

You shipped.
Now who's watching?

Five lines of code.
A teammate that never sleeps.

Less than one
cancelled subscription.

Questions indie hackers
actually ask

Stop finding out about bugs
from your users.