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Sign up at https://app.lux.financial. Sandbox keys are issued immediately. Production keys require completing KYB. See the Onboarding guide for a full walkthrough.

Public markets (stocks, fixed income, commodities, forex), private markets (privates, pre-IPO), and digital markets (crypto). Full asset coverage and venue list are documented under Trading.

Market, limit (GTC/IOC/FOK/DAY), stop, stop-limit, bracket, and algorithmic orders including TWAP, VWAP, POV, and iceberg. See Execution for routing and algo specs.

Co-located and institutional partners connect via FIX 4.4 with CompID + password. REST-only integrations start at ~5ms, FIX drops to ~500us, ZAP binary to ~100us. Contact partners@lux.financial for session credentials.

Sandbox: 100 req/min. Production: 1,000 req/min standard. Institutional and HFT tiers get higher dedicated limits. WebSocket streams have no per-message limits within channel subscriptions.

Crypto settles T+0 on-chain. US equities settle T+1. Forex settles T+2. Privates/pre-IPO settle on closing. Full settlement-rail map is in the Trading doc.

Multi-jurisdiction KYC/AML with sanctions (OFAC/EU/UK/UN) screening, PEP checks, travel-rule (FATF-compliant), SAR/CTR filing, and Reg SHO / Reg T / Reg NMS controls on relevant venues.

Every REST endpoint is exposed over Model Context Protocol. AI agents authenticate with scoped JWTs, stream quotes over WebSocket, and submit orders with the same compliance pipeline as human traders.