No signal event on file yet — status is unknown, not "quiet".
- first observed Kanon started keeping permanent history for this agent
| Machine-callable | — | unknown | — |
| Open source | — | unknown | — |
| Self-hostable | — | unknown | — |
| Bring your own key | — | unknown | — |
| Autonomy level | — | unknown | — |
| Pricing model | — | unknown | — |
| Integrations | — | unknown | — |
“Unknown” means we have not verified it — it is not a “no”. Hard filters never treat unknown as false.
It breaks down information asymmetry in real estate by automating the detection of hidden risks and inflated prices, offering clear value in a high-stakes decision.
FAQ
What is SirJohn?
SirJohn analyzes property listings from Idealista to reveal true value, hidden risks, and tax costs, helping buyers avoid misinformation from real estate agents.
What does SirJohn do?
Assess the true value and potential risks of a property in Spain or Europe before purchase by analyzing its listing on Idealista.
Why does SirJohn matter?
It breaks down information asymmetry in real estate by automating the detection of hidden risks and inflated prices, offering clear value in a high-stakes decision.
How much does SirJohn cost?
Free + premium features
Is SirJohn free?
Yes — SirJohn has a free tier. Pricing as stated on its own page: Free + premium features
How popular is SirJohn?
As tracked by KanonAgent: 2 upvotes (first indexed 2026-08-11).
What are the best SirJohn alternatives?
Similar AI agents tracked by KanonAgent: Winninghunter, Stealth Venture, Hidden Business, Dropkiller, RankAI, DataExpert / TechCreator.