Somewhere right now a founder is waking up to an API bill they weren't expecting. Agentsitter exists so that founder isn't you.
scraper-agent has made 200 identical calls in the last 3 mins. Cost spiking.
A multi-agent research tool slipped into a recursive loop. Nobody noticed. Nobody got an alert. The bill quietly accumulated while the team assumed everything was fine.
Agentsitter would have caught it on day one — the moment the cost pattern stopped looking normal, the founder would have had a text. Not a $47,000 invoice and a very bad morning.
One command. Works with any AI agent running on OpenAI, Anthropic, or anything else that bills per call.
Drop this into your existing code. Your agent has no idea it's being watched. Nothing changes for it.
We monitor every call. If your agent starts looping, snowballing, or acting odd — you hear about it straight away. No news is good news.
Your agent is repeating the same call over and over with no way out. We spot the pattern immediately and alert you before it burns through your budget.
Spend is doubling every few minutes. Classic sign of a context explosion going vertical. We catch it right at the point it starts accelerating.
Agent behaved perfectly overnight. You wake up to a one-line summary. £2.41 spent. Everything green. Crack on with your day.
Do you actually know if they're alright?
Free during beta · No card needed · 2 minute setup