0xArchive

0xArchive is a replayable market-data archive for two decentralised perpetuals venues, Hyperliquid and Lighter, delivered as one REST API, one WebSocket API that carries both live subscriptions and historical replay on a single connection, bulk Parquet export, and a hosted MCP server. Hyperliquid coverage is split into four route families - core perpetuals, Spot, HIP-3 builder perps and HIP-4 binary outcome markets - each with its own symbol format and its own set of available data types. Beyond order books, trades, candles, funding, open interest and liquidations, the archive reconstructs order-level depth that the venues do not serve directly: L4 for the Hyperliquid families and L3 for Lighter. Access is unusually flat - every plan including Free reaches every route family, schema and served depth, and plans gate capacity and Free's rolling 30-day history window rather than route access. An agent can buy its own 30-day Build or Pro access with an x402 USDC payment on Base and receive an API key on settlement, with no human signup step.

0xArchive publishes 55 API contracts indexed on the APIs.io network, including Data Quality API, HIP-3 Builder Perps - Breadth API, HIP-3 Builder Perps - Candles API, and 52 more. Tagged areas include Market Data, Historical Data, Crypto, DeFi, and Perpetuals.

The 0xArchive catalog on APIs.io includes 1 event-driven AsyncAPI specification.

0xArchive’s developer surface includes developer portal, pricing, status page, changelog, support, authentication, CLI, and 48 more developer resources.

🌐 Visit website 📡 Source on GitHub

71.6/100 exemplar ▬ flat Agent 67/100 agent ready Front door AI 3/6 light Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0

AccessFreemiumSelf serve⚡ Free to try

2 published contracts 1 MCP Servers

Market Data Historical Data Crypto DeFi Perpetuals Derivatives Order Book HyperliquidLighterHIP-3HIP-4Prediction Markets WebSocket Streaminghistorical-replayParquet Bulk Data MCP Agent-Native x402 OpenAPI REST A2A

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Developer Platform & API Ecosystem Management

BC-4270

Web3 Authentication

POST /v1/web3/keys POST /v1/web3/keys/revoke POST /v1/auth/web3/verify

What people ask 0xArchive 53

The questions people put to an LLM, and the jobs they hand an agent, that 0xArchive's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

0xArchive Hyperliquid Spot API List Hyperliquid Spot pairs “Which Hyperliquid Spot pairs have archived data?” Get metadata for one Spot pair “What metadata is available for a single spot pair?” Get a Spot pair's L2 order book snapshot “What does the spot order book for a pair look like right now?” Get historical trades for a Spot pair “Can I pull spot fills for a pair over a bounded time range?”

0xArchive Legacy API Get an order book via the deprecated route “Does the old unprefixed order book endpoint still work?” Get order book history via the deprecated route “Can I still pull order book history from the old /v1/orderbook route?” Get trades via the deprecated route “Is the old /v1/trades endpoint still available for fills?” Page trades via the deprecated cursor route “Is there a legacy trades route that uses cursor pagination?”

0xArchive Data Quality API Check overall data system health “Is any exchange or data type currently degraded?” Summarize data coverage across venues “How far back does archived data go for each venue family?” Get data coverage for one exchange “What data coverage exists for a single exchange like Lighter?” Find data gaps for one symbol “Are there missing periods in the archived data for a specific coin?”

0xArchive Web3 Authentication API Request a Sign-In with Ethereum challenge “How do I get a SIWE message for my wallet to sign?” Call the retired wallet-only free signup “Can I still create a free account with just a wallet?” List the API keys owned by my wallet “Which API keys belong to my wallet?” Revoke a wallet API key “How do I revoke an API key tied to my wallet?”

0xArchive Hyperliquid - Convenience API Get bucketed liquidation volume for a coin “How much long versus short liquidation volume hit a coin each hour?” Check how fresh a coin's data is “When was each data type last updated for a Hyperliquid coin?” Get a one-call market summary for a coin “Can I get price, funding, open interest, volume and liquidations in one call?” Get mark and oracle price history “Is there a lightweight way to get only mark and oracle prices over time?”

0xArchive HIP-4 Outcomes - Order Book API Get a HIP-4 outcome side L2 book snapshot “What does the order book for a HIP-4 outcome side look like now?” Get HIP-4 L2 book history “Can I pull historical L2 book snapshots for a HIP-4 side?” Get an order-level L4 book for a HIP-4 side “Can I see individual resting orders on a HIP-4 outcome book?” Get per-order HIP-4 L4 diff events “How do I replay each order placement and cancel on a HIP-4 book?”

0xArchive Hyperliquid - Orders API Get order lifecycle events for a coin “Can I see every placement, fill and cancel for a coin's orders?” Get per-minute order flow for a coin “How fast are orders being placed and cancelled on a coin?” Get take-profit and stop-loss order events “When were TP/SL orders placed, triggered or cancelled on a coin?” See pending stop and take-profit trigger levels “Where are pending stop-losses and take-profits clustered near the price?”

0xArchive HIP-3 Builder Perps - Convenience API Check how fresh a HIP-3 coin's data is “When was each data type last updated for a HIP-3 coin?” Get a one-call HIP-3 market summary “Can I get a HIP-3 market's price, funding and open interest in one call?” Get HIP-3 mark, oracle and mid price history “Can I get only price fields over time for a HIP-3 coin?” Get cumulative volume delta for a HIP-3 perp “Is buying or selling pressure winning on a builder perp each hour?”

0xArchive Hyperliquid - Liquidations API Get liquidation events for a coin “Which liquidations happened on a Hyperliquid coin last week?” Get liquidations for a wallet address “Was a particular wallet ever liquidated on Hyperliquid?” See projected forced-liquidation levels “At what prices would open positions get force-liquidated?” Get past projected liquidation level snapshots “How have projected liquidation clusters shifted over time?”

0xArchive System API Check whether the API is up “Is the 0xArchive API up right now?” List every public market symbol “Which market symbols can I get data for across all venues?” Get public API usage statistics “What headline statistics does the public stats endpoint report?” Get the public data coverage status “Is there a public, no-auth view of data coverage across venues?”

0xArchive HIP-4 Outcomes - Convenience API Check how fresh a HIP-4 outcome side's data is “When was order book and trade data last updated for a HIP-4 side?” Get a one-call HIP-4 outcome side summary “What is the implied probability and 24h volume for a HIP-4 outcome?” Get HIP-4 outcome side price history “How has an outcome's implied probability moved over time?”

0xArchive Lighter - Convenience API Check how fresh a Lighter coin's data is “When was each data type last updated for a Lighter coin?” Get a one-call Lighter market summary “Can I get a Lighter coin's price, funding and OI in one call?” Get Lighter mark and oracle price history “Can I get only mark and oracle prices over time on Lighter?”

Showing 12 of 53 APIs with phrasing — see every API.

Kin Score

Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0

Composite quality — 71.6/100 · exemplar

Contract Quality 11.9 / 19

Developer Ergonomics 12.9 / 15

Access Clarity 11.4 / 15

Operational Transparency 6.9 / 10

Contract Governance 1.6 / 9

Discoverability 6.9 / 8

Regulatory Posture 6.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 67/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/0xarchive: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 5

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI