Coverage · GET /v1/coverage/hours
−48 h−24 hnow
observed · shade = completeness
not observed
not collected yet
recorded interruption · cause on hover
Verifiable crypto market infrastructure
Crypto markets, with the evidence attached.
Compare venues live, investigate market history, connect through an API, or run isolated execution agents — without hiding the source, age or absence of the underlying data.
Live market proof
One instrument across the venues that quote it, with three clocks per row.
Ticker, open interest and depth arrive by different calls at different rates. A price two seconds old can sit next to depth several minutes old, so the table shows an age for each group — never one age per row. Freshness is judged per call against that call's expected cadence.
Principles
Nothing is shown as more than it is.
Six rules the product is held to. The page above is held to the same rules.
- 01Every value keeps its source venue and instrument.
- 02Every value shows when it was received, and its age.
- 03Missing data stays missing. It is never turned into zero.
- 04Stale data is never presented as live.
- 05Derived values say what they were computed from.
- 06Coverage limits stay visible.
01 / Live venue comparison
Live
Arena
One market. Every available venue. Side by side.
Compare the same instrument across the venues that quote it. Inspect price, spread, funding, open interest, depth and the age of every observation.
- Multi-venue comparison
- Age per data group
- Missing values stay visible
- BEST / WORST only when comparable
- Source behind every number
PriceFree
BEST WORST rank live order-book figures only; USD, USDT and USDC are compared as one currency.
Hatched cells: the venue publishes no such field. An oracle-vault market has no book, so no spread.
Two ages per row here — price and depth arrive by separate calls.
02 / Data and history
Live
Studio Pro
Market history with its gaps left in.
Explore instruments and venues, see exactly what was collected and when, inspect historical candles, funding, open interest, trades, liquidations and order-book depth, and reach the same data through an API.
A missing observation is empty, not zero. The age and origin of every value stay visible.
- Instrument and venue catalogue
- Trade, mark and index candles where the venue publishes them
- Funding with its interval
- Open interest
- Trades and liquidations
- Order-book snapshots and depth bands
- Coverage and gap view
- API
Individual€99 / month
Team€399 / month
Catalogue · GET /v1/coverage
| Venue | Datasets | Instruments | Listed since |
|---|
Outlined dataset: not collected for this venue · +n: further datasets · Instruments: collected / listed · Since: as published
Trade candles · 1 h · UTC
Gap · 6 h · not a zero
00:0012:0000:0012:00
API
GET /v1/snapshot?exchange=okx-perp
&symbols=BTC-USDT-SWAP&include=quote,depth,instrument
Three clocks in one row: receivedAt, openInterestAt, depthAt. null means the venue does not provide the field — never 0.
Concept · in development · not a working product
BTC perpetual · venue not selectedAccount · not connected
Mark
— USD
Age — · no venue selected, so nothing is shown
Bid—
Ask—
Controls are inactive in this concept. Buy and sell are two separate deliberate actions; there is no one-click order.
03 / Manual execution
In development
Studio Trader
Trade the market without losing sight of the source.
A simpler interface for people who need to act rather than study: clear market state, deliberate buy and sell controls, and a connection to an exchange account the user controls.
- Large readable values
- Few elements per screen
- No flashing prices
- No urgency pressure
PriceNot available yet
04 / Automated execution
Prototype
Agent
Automated execution under the operator's control.
One isolated bot for one exchange account. Every decision is written to a journal the operator can open and review.
- One account per agent
- Operational state
- Decision journal
- Strategy and risk parameters
- Pause by setting position size to zero
PriceScoped pilot
ProcessPrototype · sample
Agentagent_01
Accountone exchange account · 1 : 1
StateRunning
Last decision17:15:44.011 UTC · 8 s
Journal1,204 entries · replayable
Parameters
InstrumentBTC perpetual
Position size0.050 BTC
Max order size0.010 BTC
Max ticker age5 s
Max depth age10 m
Position size 0.000 BTC pauses the agent. There is no separate pause switch.
Decision journal · UTC
17:15:38.002 UTCd_8f21c1OBSERVEmark 77,352.31 USD · age 2 s · depth age 3 m 12 s
17:15:38.004 UTCd_8f21c1DECIDEhold · spread 0.12 bps within limit · no order
17:15:41.207 UTCd_8f21c2OBSERVEmark 77,352.02 USD · age 2 s · depth age 9 m 4 s
17:15:41.209 UTCd_8f21c2DECIDEhold · depth age above 5 m, size capped at 0.000 BTC
17:15:44.011 UTCd_8f21c3WARNdepth feed age 27 m 10 s exceeds max depth age 10 m · decision deferred
17:15:44.013 UTCd_8f21c3STATErunning · awaiting fresher depth · position unchanged
17:15:47.300 UTCd_8f21c4OBSERVEmark 77,351.88 USD · age 3 s · depth age 2 m 48 s
17:15:47.302 UTCd_8f21c4DECIDEhold · inputs fresh · size 0.050 BTC unchanged · no order
Every line carries a decision ID and the ages of the inputs it used. The journal records decisions, not results.
For CASPs, brokers and execution teams
Reconstruct what other venues showed when an order was executed.
For a given execution time and instrument, Debyko assembles what it had observed on alternative venues: bid and ask, spread, depth bands, and the age of each observation at that moment — with coverage limits stated in the report.
Sample layout — not a client report
Execution time2026-09-14 14:02:11.480 UTC
Executed venue · instrument[venue] · [venue symbol]
Executed side · size · price[from client order record]
Alternative venues in reportthose collected at that time
| Alternative venue | Instrument | Observed bid | Observed ask | Spread | Depth ±25 bps · bid / ask | Age at execution · T / D | Coverage |
|---|---|---|---|---|---|---|---|
| BINANCE-F | BTCUSDT | 77,354.1 | 77,355.0 | 0.12 bps | 412.816 / 398.104 BTC | 1 s / 2 m 40 s | collected · no gap |
| OKX | BTC-USDT-SWAP | 77,353.9 | 77,355.3 | 0.18 bps | 190.220 / 184.650 BTC | 2 s / 11 m 04 s | collected · depth delayed |
| DERIBIT | BTC-PERPETUAL | 77,352.5 | 77,356.0 | 0.45 bps | — | 4 s / — | depth not collected in period |
| GMX-V2 | BTC/USD [WBTC] | — | — | — | — | 5 s / — | oracle/vault · no book |
Table scrolls sideways · the age-at-execution column is the one that matters
Method notes
Observations are the last received before the execution time on each venue; their age at that moment is printed, not hidden. Depth may be minutes old.
Observations are the last received before the execution time on each venue; their age at that moment is printed, not hidden. Depth may be minutes old.
Coverage and gaps
Venues not collected at the time are listed as not covered. Gaps in collection are stated per venue and per call.
Venues not collected at the time are listed as not covered. Gaps in collection are stated per venue and per call.
Derived values
Spread = (ask − bid) / mid × 10,000 bps. Depth bands measured against the stated reference price.
Spread = (ask − bid) / mid × 10,000 bps. Depth bands measured against the stated reference price.
OfferTypical scope
Execution Evidence Pilot€500 – €2,000
One-off Execution Audit€1,000 – €5,000
Continuous Execution Monitoring€500 – €3,000 / month
Venue Comparison Report€1,000 – €5,000
Scope and final price depend on venues, instruments, history, order volume and reporting requirements. Reconstruction covers only periods and venues Debyko was collecting at the time.
Data and engineering services
Need a dataset, connector or analysis that does not fit a standard plan?
Scoped engagements, priced by scope. Ranges are typical, not quotes.
Custom historical dataset or export€500 – €5,000
Market microstructure research€1,000 – €5,000
Exchange or protocol connector€1,500 – €10,000
+ €200 – €1,000 / month maintenance
+ €200 – €1,000 / month maintenance
White-label Arena widget or API€2,000 – €10,000
+ €300 – €2,000 / month
+ €300 – €2,000 / month
Enterprise API and infrastructureCustom
Methodology
The method is part of the product.
Two timestamps exist. Age is the difference to now.
Venue timeif supplied · 17:15:52.118
→
Receivedalways · 17:15:52.301
→
Agenow − received · 2 s
01What is collectedTicker, open interest and depth per venue and instrument, each by its own call, each stored with the time it was received.
02How instruments are groupedBy base asset and contract type — BTC perpetual — because no cross-venue canonical ID is published. The selector lists what the store holds.
03Venue time vs received timeVenue time is printed only where the venue sends one. Received time is always present. No other timestamp is stored.
04Age and statusAge is now minus received. LIVE, DELAYED and STALE are computed per call against that call's expected cadence, set by the collector.
05Gaps vs not collected yetA gap is a period inside collection with no observation. Not collected yet is a period before collection began. They look different and are named differently.
06Derived valuesSpread = (ask − bid) / mid × 10,000. OI notional = OI × mark. Depth bands within 10 / 25 / 50 bps of a stated reference. Each shows its inputs.
07When a comparison is validBEST and WORST rank bid, ask, spread and depth among venues whose value is present, live and from an order book, with USD, USDT and USDC treated as one currency. A figure left out says why in its provenance.
08What the platform cannot knowAnything a venue does not publish, anything between two observations, and anything before collection started.
09Venue-reported vs derivedBid, ask, mark, index, funding and open interest are venue-reported. Spread, notional and depth bands are derived and say so.
Status and quality
Data quality is public system state.
Per venue and per collector, with ages. There is no single "all systems operational" badge: a degraded depth feed on one venue is shown as exactly that.
Collectors · per venue · GET /v1/health
| Venue | Collector state | Last success · age | Consecutive failures | Last error · age | Instruments stale | Latest observation |
|---|
Compare plans
Arena is free. Studio Pro adds the history and the API.
Individual and Team carry the same data; they differ in who uses it. Subscribing is by email for now — checkout comes once billing exists.
| Included | Arena€0Anyone | Studio Pro · Individual€99 / monthOne person | Studio Pro · Team€399 / monthA team · seats agreed by email |
|---|---|---|---|
| Live venue comparison, with the age of every figure | |||
| Instrument and venue catalogue | — | ||
| Trade, mark and index candles where the venue publishes them | — | ||
| Funding with its interval, open interest | — | ||
| Trades and liquidations | — | ||
| Order-book snapshots and depth bands | — | ||
| Coverage and gap view | — | ||
| API | — | ||
| Subscribe | Subscribe |
Product interest
Join the waitlist for Studio Trader and Agent.
One address, one product of interest. Nothing else is asked.
Scoped work
Contact sales about Execution Evidence, datasets or connectors.
Describe the venues, instruments and period. Scope comes back before price.