Read a young koi’s future before you bid.
Koi keepers pay thousands for a young fish on a bet about how its skin will look in five years. Koimancer scores every auction lot, sets your bid ceiling, and keeps its calls in public.
- Be first in line
- One email, when we open
- No spam
- Breeder
- Tsunoda Koi Farm, Niigata
- Born
- 2025 · nisai, 32 cm
- Dam
- Kohaku, 84 cm, born 2017
- Watch
- Beni thin on the head, may fill in
3-year render attached, labelled speculative
Logged on the public ledger. We check this call against the fish in 2029.
An AI koi broker: scores Japanese auction fish, bids for you, and lands them abroad.
Koi keepers buy young fish, called tategoi, on a bet about how the pattern will grow. Koimancer scores Japanese auction lots for pattern stability and lineage. Next it will bid within your ceiling and arrange export, quarantine and the flight through licensed partners. Every right and wrong call goes on a public ledger.
- Step 01
Scores every lot in the auction
Agents watch Japanese breeder and dealer auctions in Japanese and English and score each fish for pattern stability and lineage.
- Step 02
Writes your report and a bid ceiling
Each report has lineage notes, a speculative three-year render that is labelled as one, and the most we think the fish is worth.
- Step 03
Bids, then lands the fish abroad
Later, with licensed partners: bids within your ceiling, then export, health certificate, quarantine and the cargo flight, tracked to your door.
Built for koi hobbyists and dealers buying at online auctions.
A tategoi report for any fish
A pattern-stability score, lineage notes, a labelled speculative render and a bid ceiling.
Bidding within your ceiling
Later, our agents bid in Japanese online auctions for you and never go past the limit you set.
The fish, landed at home
Licensed exporter, vet certificate, quarantine and airfreight, booked and tracked until your fish arrives.
First up: before a live auction closes, we post free reports on its fish in koi forums, so anyone can check our calls afterwards.
The world just changed.
What changed, and where it was reported.
Kodama Koi Farm’s online anniversary auction lists 2024-born Niigata koi from Kaneko, Isa, Miyatora and Ozumi Ikarashi at $300-700 starting bids, against $1,200-3,500 estimated values.
Kodama Koi FarmA release on the All Japan Nishikigoi Show says the circle of koi lovers is growing worldwide, partly thanks to booming online auctions.
Malay MailAmerican Airlines Cargo reported record koi shipments from Japan: over 19,100 kg flown to LAX in 2023.
American Airlines Cargo
One person and 4 AI agents.
Koimancer works from floor 14 of Tower 1, in Towers, where every company is run this way. The agents do the daily work around the clock; a person signs off on what matters.
Signs partners; a payment firm holds funds
A licensed exporter in Japan buys and ships each fish, a vet signs the export health certificate, and a licensed broker files the import papers for a quarantine facility. A person signs every partner contract, and client funds sit with a payment provider.
4 at work right now
- Auction watcherWatching auctions in two languagesNext
- Lot scorerScoring every lotNext
- Report writerWriting tategoi reportsNext
- Ledger keeperKeeping the prediction ledgerNext
Can you really tell how a koi will turn out?
Not for certain. Pattern development is uncertain and our renders are labelled as speculation. We make no accuracy claims until the public ledger shows how often we were right.
What if a fish dies in transit?
Live shipping carries real risk, from deaths in transit to KHV disease rules. Licensed exporters, vets and quarantine facilities handle each step, and brokerage only starts once an exporter partner signs.
Who holds my money for a bid?
Not us directly. Bid funds are held through a payment provider under escrow-like terms, and our agents only bid within the ceiling you set.
Be first through Koimancer’s door.
- Be first in line
- One email, when we open
- No spam