Market making for
prediction markets.
Celenbase runs a market-making engine inside your own venue account. Both sides quoted around the clock, inside limits you set. Your funds never leave your account.
Opinion
Limitless
- Opinion
- Limitless
Every prediction market needs someone quoting both sides. Venues pay for it, every single day.
But quoting dozens of markets around the clock, and stepping back before news and before resolution, is not a job for a person. The free scripts say in their own README that they lose money.
Celenbase is the engine that does it inside your own account. We never hold your funds, and the engine never moves them.
One engine across venues. Limits you set, enforced on every order. Markout tells you the truth.
Watch it work.
Connect a venue, choose a preset, set your limits, start. The engine quotes, collects rewards, and steps back when the news moves. This preview runs on simulated data while the engine is in build.
Simulated preview. Live numbers publish from December 1.
Three steps. Then it runs while you sleep.
Connect
Create an API key on your venue with the narrowest permissions it offers and paste it in. The engine only places and cancels orders. It never withdraws or transfers.
Configure
Pick a preset: Rewards, Late Bids or Spread Capture. Set hard limits for size per market, markets quoted, a daily loss stop, and when to step back before resolution.
Run
The engine quotes both sides around the clock and collects the rewards venues pay makers. You watch one number: markout.
Built like a trading desk. Not a script.
What ships with the engine. Everything below is in build today and is shown here so you know exactly what you are signing up for.
Cross-venue fair value
AIThe same event priced across venues. An AI matcher reads each market's resolution rules so the engine never compares two different questions.
News kill-switch
AIA model watches headlines and venue notices. When news touches a market you quote, the engine pulls those quotes within seconds.
Resolution-risk scoring
AIEvery market's rules are scored for ambiguity before the engine trades the final stretch. Unclear markets are skipped.
No two accounts alike
Spreads, sizes and refresh timing are randomized per account, so users never crowd each other's fills.
Rewards optimizer
Order size and distance from the mid fitted to each venue's reward and rebate formula.
Risk layer first
Per-market size, daily loss stop and a venue-wide kill switch. No order leaves without passing it.
Full activity log
Every quote, cancel, fill and kill-switch decision recorded and exportable.
Plain-English strategies
LaterDescribe a strategy in one sentence and the engine turns it into configuration.
One number tells you the truth.
Markout measures where the price went after each of your fills. Positive means you traded ahead of the market. Negative means someone who knew more traded against you. Celenbase tracks it per fill, per market and per venue, and removes a market from quoting when it stays negative.
We place orders. We never move your money.
Permissions are set by each venue when you create the key. Where a venue cannot limit a key to trading, we tell you before you connect, and the choice is yours.
Non-custodial
Your funds stay in your own venue account. We never hold, pool or move them.
Keys stay sealed
Encrypted at rest, never logged, used only to place and cancel orders. Revoke on the venue any time.
Limits are hard stops
Every order passes the risk layer first. The limits you set are enforced, not suggested.
No profit share
A subscription and a visible builder fee. We never take a cut of your profits.
Integrate Celenbase.
Every new venue starts with an empty book. Celenbase brings makers to it from the first day, each one quoting inside their own limits from their own account.
Simple pricing. No cut of your profits.
Free during the beta. These are the plans that apply after it, so there are no surprises.
Prove it on one venue
Join the beta- One venue
- Up to 10 markets
- $5,000 capital cap
- Default presets
- Risk layer and kill switch
- Markout dashboard
- Builder fee applies
For traders running real size
Join the beta- Every supported venue
- All presets
- One account per venue
- $100,000 capital cap
- News kill-switch and resolution scoring
- Plain-English strategies, when released
For desks and multiple accounts
Talk to us- Unlimited accounts
- Custom rules
- API access
- No capital cap
- Priority support
- Everything in Pro
Builder fee0.10% on maker fills and 0.20% on taker fills, on venues with builder programs. Deducted by the venue and shown before you start.
Our own engine, on a public wallet.
From December 1 our own engine trades a public wallet. Every fill settles on chain, and quotes and markout are published on a public page. You will see the numbers before we ask you to trust them.
Until the public wallet goes live · December 1, 00:00 UTC
Straight answers.
What is Celenbase?
Software that runs a market-making engine inside your own prediction-market account. You connect a venue, choose a preset and set limits. The engine quotes both sides of markets around the clock and collects the rewards venues pay makers.
Do you ever hold my funds?
No. Your funds stay in your venue account, and the engine only places and cancels orders. It never withdraws or transfers. On some venues the key that places orders can also move funds; we tell you which ones before you connect, and you decide.
Is Celenbase available in the United States?
No. Celenbase is not available to US persons, or in any jurisdiction where a connected venue restricts access. We follow each venue's own geographic restrictions.
Can I lose money?
Yes. Better-informed traders can trade against your quotes, and markets can resolve against positions you hold. Hard limits, the daily loss stop and the kill-switch reduce that risk. They do not remove it. Markout shows you honestly how it is going.
When can I use it?
Our own engine goes live on a public wallet on December 1. Beta seats open after that, in order of sign-up. The beta is free.
Which venues are supported?
Opinion and Limitless first. Polymarket next, through its official Builder Program and only where Polymarket itself is available. More venues as they open their programs.
How does Celenbase make money?
After the beta, a monthly subscription plus a builder fee on filled orders on venues that support builder programs. Both are shown before you start. We never take a share of your profits.
Is this investment advice or a fund?
No. Celenbase is software. You choose the venue, the preset, the markets and the limits, and you can stop at any time. We do not manage money and do not give investment advice.
Anything else? Email us.
Get your seat before the beta.
Seats open in order of sign-up. We will email you once, when yours is ready.