Changelog

All notable changes to 0xArchive.io API and platform.

v1.9.0New Feature
April 16, 2026

Extended Fill Fee Breakdown

Trade/fill responses now include a full fee breakdown: builder fees, HIP-3 deployer fees, priority fees (HYPE burned for write priority), client order IDs, and TWAP execution IDs.

  • •New fill fields: builder_address, builder_fee, deployer_fee, priority_gas, cloid, twap_id
  • •builder_fee — fee charged by the builder/relay that routed the order (in quote currency)
  • •deployer_fee — HIP-3 deployer's trading fee share (in quote currency)
  • •priority_gas — HYPE burned for order write priority (IOC orders on HIP-3)
  • •cloid — client-assigned order ID for tracking fills back to submissions
  • •twap_id — TWAP execution ID for fills belonging to a TWAP parent order
  • •Available on all trade/fill endpoints for Hyperliquid and HIP-3
  • •Included in Parquet bulk exports and all three SDKs (Python, TypeScript, Rust v1.4.0)
  • •MCP server updated to v1.6.0, CLI updated to v1.4.0
v1.8.0New Feature
April 4, 2026

L2 Full-Depth Orderbook & Reconstruction SDKs

Full-depth L2 orderbook endpoints for Hyperliquid and HIP-3, plus orderbook reconstruction helpers in all three SDKs.

  • •GET /orderbook/:symbol/l2 — full-depth L2 snapshot at any timestamp (depth varies by tier)
  • •GET /orderbook/:symbol/l2/history — paginated L2 checkpoints (depth varies by tier)
  • •GET /orderbook/:symbol/l2/diffs — tick-level L2 price-level changes (Pro+)
  • •Available for both Hyperliquid and HIP-3 (6 new endpoints)
  • •L4OrderBookReconstructor in Python, TypeScript, and Rust SDKs — reconstruct L4 and L2 books client-side
  • •New CLI commands: oxa l2 get, oxa l2 history, oxa l2 diffs
  • •6 new MCP tools for L2 orderbook access
  • •Reconstruction docs: server-side (one API call) and client-side approaches
v1.7.0New Feature
March 16, 2026

L4 Order-Level Data & TP/SL History

Full order-level orderbooks, order lifecycle events, and TP/SL history for Hyperliquid and HIP-3.

  • •GET /orderbook/:symbol/l4 — L4 orderbook at any timestamp with user attribution (Pro+)
  • •GET /orderbook/:symbol/l4/diffs — individual order changes over time (Pro+)
  • •GET /orderbook/:symbol/l4/history — periodic L4 checkpoints (Build+)
  • •Order lifecycle history, order flow aggregation, and TP/SL order history
  • •Real-time L4 WebSocket channels: l4_diffs, l4_orders, hip3_l4_diffs, hip3_l4_orders (Pro+)
  • •Data available from March 10, 2026
v1.6.1New Feature
March 4, 2026

Full HIP-3 Builder Coverage

Expanded HIP-3 support from 29 markets (xyz + km) to all 125+ markets across every active builder.

  • •All 6 builders now supported: xyz (XYZ), flx (Felix Exchange), hyna (HyENA), km (Kinetiq Markets), vntl (Ventuals), cash (dreamcash)
  • •New asset classes: crypto majors (hyna:BTC, hyna:ETH, hyna:SOL), thematic indices (vntl:MAG7, vntl:SPACEX, vntl:OPENAI), commodities (flx:PALLADIUM, flx:PLATINUM), and more
  • •All data types available: orderbook, trades, candles, funding rates, open interest
  • •Data available from March 4, 2026 for new markets
v1.6.0New Feature
February 24, 2026

Lighter & HIP-3 Convenience Endpoints

Freshness, summary, and pre-aggregated price history now available across Hyperliquid core, Hyperliquid HIP-3, and Lighter.xyz.

  • •GET /v1/lighter/freshness/:symbol, /summary/:symbol, /prices/:symbol
  • •GET /v1/hyperliquid/hip3/freshness/:coin, /summary/:coin, /prices/:coin
  • •Pre-aggregated price history intervals (5m, 15m, 30m, 1h, 4h, 1d) — no client-side rollups needed
  • •Python, TypeScript, and MCP SDKs updated
v1.5.0New Feature
February 18, 2026

Multi-Channel WebSocket Replay

Stream multiple channels synchronized on a single WebSocket connection.

  • •Replay orderbook + trades + funding + open interest in timestamp order
  • •Synchronized multi-channel replay
  • •Initial replay_snapshot messages for each channel before timeline starts
  • •Lighter.xyz and HIP-3 WebSocket channels (orderbook, trades, candles, OI, funding)
v1.4.1New Feature
February 2, 2026

WebSocket Gap Detection

Automatic gap detection during historical replay.

  • •Server-side gap detection with configurable thresholds
  • •gap_detected messages notify clients of data gaps
  • •Thresholds: 2 min for orderbook/candles/liquidations, 60 min for trades
  • •SDK support via onGap() / on_gap() callbacks
v1.4.0New Feature
January 28, 2026

Data Quality Monitoring

New endpoints for monitoring data coverage, incidents, latency, and SLA compliance.

  • •GET /v1/data-quality/status - System health overview
  • •GET /v1/data-quality/coverage - Data coverage by exchange
  • •GET /v1/data-quality/coverage/:exchange/:symbol - Symbol-level gap detection
  • •GET /v1/data-quality/incidents - Incident tracking
  • •GET /v1/data-quality/latency - Real-time latency metrics
  • •GET /v1/data-quality/sla - SLA compliance reporting
v1.3.0New Feature
January 20, 2026

Liquidations API

Historical liquidation events for Hyperliquid.

  • •GET /v1/hyperliquid/liquidations/:coin - Liquidation history by symbol
  • •GET /v1/hyperliquid/liquidations/user/:user - Liquidations by user address
  • •WebSocket liquidations channel for replay/streaming
  • •Data available from May 2025 onwards
v1.2.0New Feature
January 10, 2026

WebSocket Streaming

Real-time data streaming via WebSocket connections.

  • •Subscribe to real-time order book updates
  • •Stream live trades as they happen
  • •Funding rate push notifications
  • •Connection health monitoring
v1.1.0New Feature
January 5, 2026

OAuth Authentication

Sign in with GitHub and Google for faster onboarding.

  • •GitHub OAuth integration
  • •Google OAuth integration
  • •Automatic account linking
v1.0.2Improvement
January 3, 2026

Performance Improvements

Significant improvements to API response times.

  • •Reduced average response time by 40%
  • •Optimized database queries for order book history
  • •Added response compression for large payloads
v1.0.1Bug Fix
December 28, 2025

Bug Fixes

Various bug fixes and stability improvements.

  • •Fixed pagination in trades endpoint
  • •Resolved timezone handling in candle data
  • •Fixed rate limit header accuracy
v1.0.0New Feature
December 20, 2025

Initial Release

Official launch of 0xArchive.io API.

  • •Order book snapshots from April 2023
  • •Trade history API
  • •Funding rates and open interest
  • •OHLCV candle data
  • •Self-serve API key management
  • •Usage dashboard and analytics

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