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Burnwatch
Catch your AI agent before it drains your wallet
Your AI agents pay for APIs, tools, and compute on their own. One bug or prompt injection can drain the wallet in minutes. Burnwatch learns each agent's normal spend and alerts you the second something looks wrong. Never touches your keys. pip install burnwatch.
A year ago, "my AI agent spent money" was a thought experiment. Today agents pay for APIs, search, and compute on their own, over x402 and stablecoins. That's the exciting part. The terrifying part is that an agent has zero instinct for "wait, this looks wrong."
A bug, a runaway loop, or a prompt injection doesn't crash. It just keeps paying. By the time you glance at Slack, the wallet is empty.
We already solved this for people. When your credit card does something out of character, your bank pings you in seconds. Agents have had nothing like that.
Burnwatch is that alert, for your agents.
You add one line after each payment (or wrap your x402 client). Burnwatch learns each agent's normal, then fires the moment it drifts: burn rate spiking, a counterparty it's never paid, draining in bursts, spending at 3am, jumping to a brand new rail. Every alert ships with the evidence (the exact numbers and rules that tripped), so you can tell a real incident from noise in one glance.
Two things I refused to compromise on:
→ It never holds your keys and never sits in the payment path. Metadata only. If Burnwatch goes down, your agent keeps paying. Monitoring should never be able to break the thing it's monitoring.
→ It's trivial to try. No wallet required. "pip install burnwatch", or open the live demo at app.burnwatch.dev/live and watch an agent get hijacked in real time, detection firing in under two seconds.
The free tier is genuinely usable: 2 agents, 10k events a month, every detection rule included.
If you're building agents that spend, I'd love to hear: what would you want flagged that nothing catches today?
About Burnwatch on Product Hunt
“Catch your AI agent before it drains your wallet”
Burnwatch was submitted on Product Hunt and earned 5 upvotes and 1 comments, placing #52 on the daily leaderboard. Your AI agents pay for APIs, tools, and compute on their own. One bug or prompt injection can drain the wallet in minutes. Burnwatch learns each agent's normal spend and alerts you the second something looks wrong. Never touches your keys. pip install burnwatch.
On the analytics side, Burnwatch competes within Fintech, Developer Tools and Artificial Intelligence — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how Burnwatch performed against the three products that launched closest to it on the same day.
Who hunted Burnwatch?
Burnwatch was hunted by Tyler. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Burnwatch including community comment highlights and product details, visit the product overview.
Tyler
Hey PH 👋 (I'm Tyler, maker of Burnwatch.)
A year ago, "my AI agent spent money" was a thought experiment. Today agents pay for APIs, search, and compute on their own, over x402 and stablecoins. That's the exciting part. The terrifying part is that an agent has zero instinct for "wait, this looks wrong."
A bug, a runaway loop, or a prompt injection doesn't crash. It just keeps paying. By the time you glance at Slack, the wallet is empty.
We already solved this for people. When your credit card does something out of character, your bank pings you in seconds. Agents have had nothing like that.
Burnwatch is that alert, for your agents.
You add one line after each payment (or wrap your x402 client). Burnwatch learns each agent's normal, then fires the moment it drifts: burn rate spiking, a counterparty it's never paid, draining in bursts, spending at 3am, jumping to a brand new rail. Every alert ships with the evidence (the exact numbers and rules that tripped), so you can tell a real incident from noise in one glance.
Two things I refused to compromise on:
→ It never holds your keys and never sits in the payment path. Metadata only. If Burnwatch goes down, your agent keeps paying. Monitoring should never be able to break the thing it's monitoring.
→ It's trivial to try. No wallet required. "pip install burnwatch", or open the live demo at app.burnwatch.dev/live and watch an agent get hijacked in real time, detection firing in under two seconds.
The free tier is genuinely usable: 2 agents, 10k events a month, every detection rule included.
If you're building agents that spend, I'd love to hear: what would you want flagged that nothing catches today?