01 · Execution
Every order needs a yes
If the independent authority, Decionis, cannot be reached or a price is stale, the trade is refused. Refusal is the universal failure mode.
Live since March 2026 · as of 1 Nov 2026verify on Polygonscan →
Your bots trade.Nevarn runs them under outside rulings and keeps books that match the chain.
The back office for trading bots and agents. Decionis decides. Nevarn operates — and proves it.
Start in shadow modeRecords refusals · stops nothing
Try to break it — 60 seconds, no sign-up- Record
- On the public chain
- Rulings
- Decionis, from outside
- Customer keys
- Never held
One book · every ledger
Illustrativeyour book12,480.00 USDC5 ledgers compared · 1 disagrees
- FiatMoonPayread 1 min agoDRIFTreported 250.00 delivered · book has 249.00+1.00 USDC unexplained
- ChainEthereumread 2 min agoMATCH
- ChainPolygonread 2 min agoMATCH
- VenuePolymarketread 4 min agoMATCH
- FiatYellow Cardread 9 min agoMATCH
Drift: shown per ledgerNever netted awayNothing auto-corrected
Proved in production
Live since March 2026. Counted from the chain.
These figures come from the public blockchain, not from our database. The trading wallet is public: check every trade on Polygonscan, its Polymarket profile or its Dune dashboard.
Mar 2026
Live on-chain since
The trading wallet's first live trade.
119
On-chain trades
87 buys and 32 sells, each confirmed on the public chain; the most recent on 18 Jul 2026.
29
Distinct markets traded
At one venue. Nine positions still held, all on resolved markets awaiting redemption.
3
Settlement rails in treasury
Bitcoin, Ethereum, and Polygon, with further EVM rails configured.
Figures as of 1 Nov 2026. The full lane-by-lane record — what has traded, what is built and waiting, and what we deliberately do not claim — is on the technology page.
Why now
When an oracle stalls, a bot keeps firing. Nevarn doesn't.
For teams running trading bots or AI agents with on-chain money, Nevarn is the back office that runs strategies under outside rulings from Decionis, signs only inside a bounded mandate, and keeps one double-entry book reconciled against the public chain. Unlike wallet vendors, custodians, bot platforms or crypto accounting tools, Nevarn joins the ruling, the signature and the book in one system.
See who does what: Decionis and NevarnThe back office
Ruled from outside. Signed inside a mandate. Booked against the chain.
02 · Treasury
Your strategy never touches your keys
Keep your money separate from your machinery. Nevarn operates on bounded permissions — limited by venues, actions, amounts, and a maximum 90-day expiry.
03 · Observability
Books that match the blockchain — and show you when they don't
Every approval and refusal writes two matching halves to an internal ledger. Any drift from the public blockchain is displayed, never hidden.
Architecture
One back office between strategies and custody.
- 01
Strategy agents
Python services scan, price, and propose. They hold no keys and cannot place an order on their own.
- 02Fail-closed
Execution authority
A separate service rules on each proposal: proceed, refuse, refer, or hold. Unreachable means refused.
- 03
Venue execution
The venue adapter re-checks the approval against the exact order it authorises before anything is placed.
- 04
Harvest & settlement
Proceeds and settled positions are collected as they clear, each event recorded once.
- 05
Treasury routing
Value moves along explicit, per-chain paths to named destinations — never to an address a strategy invents.
- 06
Custody
Funds land in accounts the platform holds no key to, under permissions the owner can revoke alone.
Spans every stage
The ledger, under everything
Every step writes two matching halves to a double-entry book. Balances are recomputed from records, and any disagreement with the chain is displayed rather than tidied away.
Spans every stage
The halt, over everything
One action stops all signing on an account, effective on the next request. Every rule refuses by default; a missing limit denies rather than permits.
Sandbox
Don’t take our word for it. Try breaking it.
Step into a pre-funded, simulated sandbox. Propose a mock trade, watch a stale price refused, and test the global halt switch.
- We never hold your keys. We never ask for your seed phrase.
- No email or sign-up required to test the sandbox simulator.
- Built for teams running bots and agents, but designed to be stopped by anyone with a single click.
Who this serves
Built for teams running bots and agents with on-chain money.
Teams running trading bots
Keep the strategy. Hand over the operations.
Your bot proposes; Decionis rules from outside; Nevarn signs inside a bounded mandate and books the result against the chain. The strategy never touches your keys.
Test the kill switch (takes 60 seconds)Teams running AI agents
Give agents a permission, not a wallet.
Named venues and actions, a ceiling per transaction, a rolling daily limit and an expiry of at most ninety days. A missing limit refuses rather than permits.
How agent spending limits workDesks running on-chain treasury
Stop guessing what your automation did.
Every approval and refusal is booked as two matching entries, and any drift between the book and the chain is shown, never tidied away.
See the double-entry book in actionPlain answers
The questions that decide trust.
Does Nevarn hold customers' private keys?
No. A customer's wallet stays theirs; Nevarn acts only on a separate working balance, under a limited permission the customer's own account has been told to accept. The permission is scoped to named venues and actions, capped per transaction and per day, and expires within ninety days. Revoking it destroys the material that could produce a signature.
How does a customer stop Nevarn?
One action halts all signing on the account, effective on the next request — not a support ticket. Separately, only the customer can remove a permission, and once revoked their account refuses Nevarn's signature regardless of what Nevarn's records say.
What happens if Nevarn's decision service goes down?
Trades are refused. Every live buy order in the gated lane needs an explicit proceed ruling from Decionis, a separate execution authority; if that authority cannot be reached, the order is not placed. An outage stops trading rather than removing the guardrail.
Can Nevarn's trading record be verified independently?
Yes. Since March 2026 the trading wallet has made 119 trades (87 buys, 32 sells) across 29 markets, each a confirmed transaction on the public blockchain; the most recent was on 18 July 2026 (counted 1 Nov 2026). It still holds nine positions, all on markets that have resolved and await redemption; none is on a live market. Anyone can check them on the public blockchain, or on the wallet's Polymarket profile, without Nevarn's cooperation. That trade count, not an internal volume figure, is the number Nevarn publishes.
Is Nevarn regulated?
Not yet, and it says so plainly. Nevarn is built with the properties supervised environments expect — bounded mandates, pre-trade rulings, fail-closed defaults, recorded refusals, double-entry books — but it holds no regulatory licence today.
More direct answers — spending limits, kill switches, agent payments — are in Learn.
Shadow mode
See what would have been refused before anything is.
Shadow mode records what Nevarn would have refused without stopping a single order, so you can read the rulings beside your own results before any of them is enforced. Lanes already enforced stay enforced.
What happens after you start
Book a walkthroughStep 1
Confirm your email
Create your account here with your name, country and email, then enter the code we send you. Signing in happens on the console, app.nevarn.com.
Step 2
Fund only what you put at risk
Create a separate working balance and add USDC by card or transfer. Your own wallet stays out of reach.
Step 3
Set your limit, then switch on
Choose the daily limit and approve one bounded permission. Every order is ruled on before it moves, and one action stops everything.
Stated in advance
What we don't claim
- No trading history for the on-chain arbitrage lane. The contract is deployed and has never found an opportunity clearing its floor.
- No mining, staking, or validator revenue. Rehearsal figures once produced by declared inputs have been cleared, the component now refuses them, and the category is not part of this business.
Risk, stated plainly
Limits contain authority—not markets.
- Trading can lose money. Nevarn does not promise a return or present projections as outcomes.
- A limit bounds what Nevarn may use. It does not bound how far a market can move.
- Some venues are unavailable in some countries. Access is refused where restrictions apply.