Where Laevitas wins
- Options. Laevitas sells option chains, Greeks and trade flows including blocks (API docs, checked October 1, 2026). We have no options data at all.
- Venues and instruments. Its API covers Binance, Deribit, OKX, Bybit and Hyperliquid, with options, perpetuals and dated futures (laevitas.ch, checked November 5, 2026). We cover perpetuals on Binance, OKX and Hyperliquid.
- Liquidations. Its derivatives data includes liquidations (API docs). We have none.
- A cheap way to look. Premium is $50 a month per seat, with 1 year of history and CSV exports (pricing, checked November 5, 2026).
If you trade options or Deribit, buy Laevitas. The rest of this page is about perps.
Where Aperiodic is the better alternative
The API comes with the free plan. Laevitas lists API historical data on Enterprise, at $500 a month per seat (pricing, checked November 5, 2026). Aperiodic is free for every metric over 2025 on BTC, ETH, SOL and 10 RWA perps, on all three venues. That includes the API and the Python SDK. Pro, at $199 a month billed yearly ($249 month to month), adds every perp and 5 years of history from 1-minute to 1-day bars (pricing).
History arrives as files. Laevitas API responses return up to 1,000 rows per request with cursor pagination, and its raw L2 snapshots are kept for 30 days (API reference, checked October 1, 2026). A year of 1-minute bars for one series is 525,600 rows, so 526 requests. Aperiodic returns parquet files covering the range you ask for. Here is one, pulled with no API key:
# Install the Aperiodic CLI into ~/.local/bin
mkdir -p "$HOME/.local/bin"
curl -fsSL https://raw.githubusercontent.com/aperiodic-io/cli/main/install.sh | INSTALL_DIR="$HOME/.local/bin" bash
export PATH="$HOME/.local/bin:$PATH"
aperiodic impact --preview --exchange binance-futures --symbol perpetual-BTC-USDT:USDT \
--interval 5m --timestamp exchange --start-date 2025-05-01 --end-date 2025-05-31 \
--output-dir ./data && echo "Saved to $PWD/data"One parquet file: 8,928 rows, every 5-minute bar in May 2025, with 5 price-impact metrics per bar, among them a Kyle's lambda and an Amihud illiquidity estimate (impact).
# pip install pandas pyarrow
import pandas as pd
df = pd.read_parquet("data/2025-05.parquet")
print(df.shape) # (8928, 6): time + 5 price-impact metrics
print(df[["kyle_like_lambda", "amihud_like"]].describe())Or have your agent run it and read the file for you:
Read https://aperiodic.io/start.md and follow it. Then pull the free `impact` preview and show me when in the day Kyle's lambda is highest.Published bars do not change. Laevitas corrects history and publishes the changes in a machine-readable correction feed (historical data), and its responses carry no ingestion timestamp (data products, both checked October 1, 2026). Corrections are honest, and they also mean a backtest run twice can read two different histories. Aperiodic metrics are point-in-time, with exchange and local timestamps, and a published bar is not recalculated. You can also build every bar on local time, when the data reached our collectors closest to the exchange, so a backtest sees only what had arrived by each bar's close.
Trading costs as well as positioning. Besides funding, open interest and basis, Aperiodic ships slippage paid by each taker trade, price impact, trade size distribution and order flow by trade size: 220 metrics across 19 datasets (catalog). Every other vendor's entry price is on crypto market data pricing, vendor by vendor.
What every plan gives a backtest
- Every perpetual on Binance, OKX and Hyperliquid stays in the data after it is delisted, so a backtest sees the coins that were listed at the time, including the ones that later died.
- Published bars are never recalculated. A backtest you run next year reads the same history as one you run today.
- Every metric comes on exchange time or on local time (when the data reached us). On local time, a bar only holds what you could have seen by its close.
- Prime and above have no API rate limits, and Pro has high ones. The Python SDK downloads 10 files at a time by default.
Side by side
| Laevitas | Aperiodic | |
|---|---|---|
| Built around | Options and derivatives analytics | Perp microstructure metrics |
| Venues (API) | Binance, Deribit, OKX, Bybit, Hyperliquid | Binance futures, OKX perps, Hyperliquid perps |
| Options | Chains, Greeks, trade flows including blocks | None |
| API history | Enterprise, $500/month per seat | Pro, $199/month billed yearly |
| History by plan | Free 1 week; Premium 1 year | 5 years on Pro; full history on Prime |
| Bulk history | Up to 1,000 rows per request, paginated | Parquet files per date range |
| Timestamps | No ingestion timestamp in responses | Exchange and local timestamps; every metric built on either clock |
| Corrections | History corrected, with a correction feed | Point-in-time; published bars are not recalculated |
| Expired instruments | Can still be requested | Kept, on every covered venue |
| Rate limits | High-throughput API only on Custom Enterprise | None on Prime and above, high on Pro; parallel downloads |
| Payment | USDC, prepaid, no automatic renewal | Card, billed monthly or yearly |
Laevitas plans checked November 5, 2026 against its pricing page; API details checked October 1, 2026 against its API docs and API reference. Plans change; check their site before you buy.
From Laevitas data to Aperiodic datasets
| On Laevitas | On Aperiodic |
|---|---|
| Perpetual funding rates | funding: funding_rate and how often it updates |
| Open interest | open_interest: level, notional, change, volatility |
| Buy and sell volume per bar | flow: taker buy and sell volume, by trade size |
| Order book liquidity and imbalance by level | l2_imbalance and l2_liquidity at 5 to 25 levels; l1_liquidity at the top (Prime) |
| Basis and term structure | basis for perps against their index; no dated futures |
| Options chains, Greeks, block flows | Not available. Keep Laevitas for this. |
| Liquidations | Not available. |
Which one to buy
Choose Laevitas for options: chains, Greeks, block flows and term structure, or for Deribit and dated futures. Its $50 Premium plan is a cheap way to chart all of it.
Choose Aperiodic if you want perp order flow, slippage, price impact and liquidity metrics in a backtest through an API, with years of 1-minute history, for less than an Enterprise seat.
Desks that trade both use both: Laevitas for the options book, Aperiodic for the perp research.