AI-Native Trading Infrastructure

A trading system that moves as fast as you do.

The first OTC derivatives platform where AI agents don't just assist — they participate. Every module discoverable. Every output explainable. Every change safe.

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Scion
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You've lived this.

Legacy trading systems were designed before the internet. They produce answers but not explanations, resist automation, and make change dangerous.

Black-box risk

A P&L number moves overnight. To find out why, someone opens a spreadsheet and spends the morning reverse-engineering the calculation. The system produced the number. It cannot explain it.

every desk, every morning

Frozen architecture

A new product type requires a quarter of development because everything is coupled. One pricing change triggers a cascade of regression risk across unrelated products.

one change, a hundred regressions

AI that can't see

Chatbots bolted onto systems built in the 1990s. AI cannot reason about data it cannot access, types it cannot interpret, or rules buried in procedural code.

bolted on, not built in

AI-native,
not AI-adjacent.

Every module exposes discoverable interfaces. Every data object carries its own context. Agents don't scrape the UI — they call the same APIs the system calls itself.

  • Natural language trade entry

    Describe a trade in plain English. The system structures, validates, and books it. So a trader spends seconds on entry instead of minutes fighting a form.

  • Semantic type system

    Business rules encoded in the type system. Malformed data cannot be constructed — not just detected downstream. So bad trades are impossible to book, not just caught later.

  • MCP-native interfaces

    Every module exposes read capabilities via Model Context Protocol. So AI agents can query your book, explain a risk number, or draft a trade — without a human translating.

scion query
> query

3 trades found

Trade IDTRD-2025-04821
ProductEUR IRS Fixed/Float
Notional€250,000,000
DV01€1,247,500
Maturity2027-06-15
StatusLive

Trade IDTRD-2025-05102
ProductEUR IRS Fixed/Float
Notional€180,000,000
DV01€1,085,000
Maturity2027-09-20
StatusLive

Click. Trace. Understand.

Every output carries its full provenance chain. When a number looks wrong, diagnosis takes minutes — not hours in a spreadsheet.

Trade Event
Market Data
Valuation
Sensitivity
VaR
P&L Attribution

Lineage, not logging

Every function that transforms data takes a LineageContext and returns one. Provenance is structural, not bolted on. So when a number changes, you trace it to the input that moved — in seconds.

Computation contracts

Every output declares how it was produced: deterministic, heuristic, or AI-assisted. So you know which numbers to trust for margin calls and which to double-check.

Replay as a primitive

Replay any subset of events, target any module, produce results into a shadow projection. So reconciliation, debugging, and regulatory reconstruction are the same operation — not three separate processes.

Engineered for certainty.

A modular monolith with event-driven communication. Every module is independently extractable. Every event is immutable. Every change is safe.

  • 1

    Event-sourced truth

    The event store is the authoritative record. Materialised views are projections rebuilt at any time. So "what was the state at 3pm Tuesday?" is a query, not a forensic exercise.

  • 2

    Per-product isolation

    Changes to one product type cannot break another. Separate pricing, validation, and risk per product. So a new swaption model ships without touching your IRS pricing.

  • 3

    Extract without rewrite

    Modules communicate through the event bus and MCP. When a module needs independent scaling, swap the transport. So the valuation engine scales to production load without a rewrite.

  • 4

    Property-based quality

    Business invariants encoded as machine-checkable property tests. They catch what unit tests miss. So "the code works but the logic is wrong" stops happening silently.

Event
Bus
publishes & subscribes
Trades Valuation Market Risk Credit Risk Market Data Reference Data Settlements Collateral Reporting
MCP read interface
AI Agents & Frontend

Built to move fast.

< 30s
Natural language to
booked trade
< 7 days
New product type
end-to-end
0
Silent failures.
Every error is traceable.
100%
Outputs carry full
provenance chain

See what trading infrastructure
should look like.

Scion covers the full OTC derivatives lifecycle — rates, credit, FX, equity, commodity — from trade entry through valuation, risk, and P&L attribution.

Launch the app