Summary: LN Markets is a Bitcoin-perps venue wrapped around Lightning-native account funding and API access. The interesting part is not a new market design; it is that deposits, withdrawals, and bot control are built around Bitcoin and Lightning rails from the start.
What it does:
Lets users fund trading accounts with Lightning invoices, LNURL-pay, or on-chain bitcoin deposits and withdraw via Lightning, LNURL-withdraw, or on-chain bitcoin
Offers perpetual BTCUSD futures whose reference price is built from a weighted basket of major exchange perpetuals rather than a single-venue market
Supports both isolated-margin and cross-margin trading, plus margin adjustments, funding-fee accounting, and order execution against order-book buckets
Exposes a signed REST API for account, wallet, and futures operations, including deposits, withdrawals, transfers, open orders, filled orders, candles, funding settlements, and ticker data
Exposes WebSocket authentication and private-subscription workflows that reuse the same API keys as the REST API
Provides official TypeScript and Python SDKs for integration according to the API docs
Key claims:
The homepage says LN Markets combines centralized-exchange liquidity with instant settlement and “Bitcoin-grade security” to form an aggregation layer for bitcoin derivatives
The docs say LN Markets offers a REST API for programs and trading bots and that the mainnet API endpoint is https://api.lnmarkets.com/v3/
The docs say private REST requests require HMAC-signed headers including key, passphrase, signature, and timestamp, while WebSocket authentication uses the same API keys with timestamp + nonce signing
The docs say the REST API uses a token-bucket rate limiter with a refill rate of 20 tokens per second and a burst capacity of 40 tokens
The deposit docs say Lightning deposits are credited instantly, on-chain deposits are credited after 2 confirmations, LNURL-pay is supported, Lightning deposits have a 1,000-sat minimum, and LN Markets does not charge deposit fees
The withdrawal docs say Lightning withdrawals arrive immediately while on-chain withdrawals are processed manually
The futures docs say the underlying reference is a weighted basket of BTCUSD perpetual futures from venues including Bybit, Binance, OKX, Deribit, and BitMEX
The futures docs say the platform supports up to 100x leverage, isolated and cross margin, and uses order-book buckets rather than the price-reference basket for execution and liquidation triggers
Whitepaper: No canonical standalone LN Markets whitepaper or litepaper surfaced in this pass. The clearest current sources of truth were the official homepage and first-party docs site, with several details recoverable from the docs’ compiled route bundles because the HTML shell is mostly client-rendered; see ../whitepapers/ln-markets-primary-sources-2026-05-01.md.