> ## Documentation Index
> Fetch the complete documentation index at: https://docs.0xarchive.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Kaiko Vs 0xArchive

> Kaiko packages institutional CeFi data. For Hyperliquid and Lighter market data, live and historical, 0xArchive returns every order, trade, and fill.

Every order, trade, and fill on Hyperliquid and Lighter, live and historical, from one API. Kaiko packages institutional data across centralized exchanges and reference rates. For Hyperliquid and Lighter market data, you call 0xArchive.

One key returns order books, trades, candles, funding, open interest, liquidations, and full order-level (L4) depth as normalized JSON. Order books and trades go back to April 2023; order-level depth and lifecycle since March 2026. No collectors, no backfill, no rebuilding the book.

## What One Key Returns

| Hyperliquid and Lighter market data   | Kaiko                            | 0xArchive                                                                                |
| ------------------------------------- | -------------------------------- | ---------------------------------------------------------------------------------------- |
| Order books (L2), live and historical | Institutional CeFi distribution  | 20-level snapshots about every 1.2 seconds since April 2023, 24.6B+ records, 176 symbols |
| Trades                                | Institutional CeFi distribution  | Since April 2023, continuous to the current hour                                         |
| Funding and open interest             | Institutional CeFi distribution  | Since May 2023                                                                           |
| Liquidations                          | Institutional CeFi distribution  | Since December 2025                                                                      |
| Order-level depth (L4) and lifecycle  | Broad institutional data program | Every order add, fill, cancel, and TP/SL, with wallet attribution, since March 2026      |
| Lighter order books                   | Broad institutional data program | L2 tick since January 2026, L3 since March 2026                                          |
| Live stream and replay                | Broad institutional data program | WebSocket subscriptions and exact-window replay on one socket                            |
| Spot, HIP-3, HIP-4                    | Broad institutional data program | Separate Hyperliquid-scoped families, each with its own history                          |

## Where Kaiko Fits

0xArchive is a venue-depth specialist, not a compliance-program vendor; the institutional program layer belongs to Kaiko. Its site lists Level 1 and Level 2 market-data feeds, BMR-compliant reference rates and indices, fair-value and best-execution analytics, and market-surveillance and blockchain-monitoring tools for AML/CFT work, serving 200+ enterprise clients including financial institutions and regulators. Buying runs through a trial request and a sales conversation rather than self-serve signup. When the requirement is a regulated benchmark, surveillance coverage, or a vendor program procurement can underwrite across the whole crypto market, that requirement points to Kaiko, and 0xArchive is not the right fit for it; this API covers the two venues where depth decides, not the benchmark layer.

For the two venues on this page, the trade is depth and speed of access: order-level records on Hyperliquid and Lighter, reachable with a key issued today.

## When To Use 0xArchive

A developer reads the route and calls it the same day, no procurement cycle in front of the data. The market data comes back normalized, with named fields, live or historical: more than 24 billion order-book records and trades back to April 2023, plus full order-level (L4) depth with wallet attribution since March 2026. Every response carries a request ID and a data-quality path you can check before a backtest trusts the window. For Lighter, native L2 tick goes back to January 2026 and L3 to March 2026. Every route, market family, and schema is available on every tier, including Free; plans gate limits, not access. Every order, trade, and fill. One API.

## Machine-Readable Routes

Coding agents and generated clients read the route contract directly: OpenAPI, Markdown, `llms.txt`, CLI, SDK, MCP Server, and Skill all point at the same Hyperliquid and Lighter routes, so a model identifies the correct call without private onboarding notes.

## Next Step

Run [Quickstart](/quickstart), inspect [OpenAPI](/openapi), then [compare plans](https://0xarchive.io/pricing?utm_source=docs\&utm_medium=referral\&utm_campaign=docs_referral\&utm_content=kaiko_comparison_pricing). Use [Enterprise delivery](/enterprise-delivery) when procurement, delivery path, or support expectations become part of the decision.