Guarded execution · evidence-first
Allow, resize, or block — with the evidence to back it.
Sonde runs your Polymarket trade idea through guards — simulated fill, slippage caps, exposure limits — and records an auditable decision. Paper first.
3-day trial · No real orders until you activate · Not financial advice
Decision: Allow — resized to 180 USDC
entry 48.4¢ · evidence written · no real order (paper)
A worked example, not a promise — paper results over real market data. Trading carries risk of loss.
- Paper-first by default
- Evidence on every run
- Server-enforced caps
- US & restricted: read-only
How it works
- 01
Pick a market
Watch the live Polymarket book.
- 02
Set your guards
Slippage, depth, caps — your numbers.
- 03
Run in paper
Real data, simulated fills, no orders.
- 04
Read the evidence
Then activate — bounded, reversible.
What stands between your idea and an order
Every run passes the same guardrail — and shows its work.
Three guards on every order
Stale-book, slippage & depth, cap & exposure — applied to every single run.
Simulated fill first
The fill is simulated against the live book before anything is allowed.
Paper until you say so
Real-active is opt-in, bounded by caps, and reversible.
Every decision leaves evidence
Each run writes an auditable trail you can replay step by step.
Learn tightens your guards
Run outcomes become reviewable suggestions — never silent changes.
Suggestion: tighten stale-book guard 1.5s → 0.9s
Applies to a cloned draft · you review it
Your caps, server-enforced
Run, exposure, and entity caps are enforced on the server, not in the UI.
Plans
Sonde starts with a card-required 3-day trial, then monthly Pro or Elite. Paper stays available until you explicitly activate bounded real-active execution.
Card-required for 3 days
- 5 active flows
- 25 runs / day
- 10 watched entities
- 2 backtests / day
- Read-only after expiry
For active individual traders
- 25 active flows
- 250 runs / day
- 100 watched entities
- Bounded real-active execution
- 90-day evidence retention
- Upgrade when trial caps hit
For desks and high-volume teams
- 250 active flows
- 2,500 runs / day
- 1,000 watched entities
- Higher exposure caps
- 365-day evidence retention
- Dedicated support
See a guarded run end to end
Build a flow, run it in paper over real market data, and read the decision and its evidence. No real money moves until you choose to activate.
Build a guarded flow