What is DataMaxi+
A comprehensive crypto data platform powering arbitrage strategies, trading bots, and AI agents.
Mission
Crypto market data is fragmented across dozens of CEX and DEX venues, each with its own schema, rate limits, and latency profile. DataMaxi+ consolidates that fragmented surface into a single normalized feed — so traders, quants, and AI agents can focus on the trade, not on the plumbing.
We specialize in arbitrage-grade data: kimchi premium, funding-rate skews, listing announcements, and on-chain deposit tracking. The same primitives that power our hosted product (datamaxiplus.com) are exposed through this developer platform.
The platform in three paragraphs
Ingestion. DataMaxi+ runs collectors against 20+ CEX (Binance, Bybit, OKX, MEXC, Upbit, Bithumb, ...) and DEX venues on Kaia Chain (with BNB and more on the roadmap). Collectors normalize every venue's tick, funding rate, orderbook, and announcement stream into a uniform schema and push to our aggregation tier.
Aggregation. The aggregator computes derived datasets that matter for the trade — cross-exchange spreads (premium), annualized funding rates, listing-event windows, and liquidation maps. Reference data (symbol metadata, trading fees, wallet status, chain assets) is kept in sync so a downstream consumer sees one consistent view of the market.
Distribution. The data leaves the platform through three surfaces: a REST API for snapshots and historical pulls, a WebSocket API for sub-100ms live streams, and an MCP server that lets AI agents query the same datasets as a first-class tool. SDKs in Python, Rust, and TypeScript wrap REST and WebSocket so you can be in production in under an hour.
Next steps
- Data Coverage — Supported exchanges, tokens, and dataset categories.
- Reliability & SLA — Uptime, latency, and freshness posture; enterprise SLAs on request.
- Pricing & Tiers — Plans, rate limits, and feature gates.
Already building? Jump to the API Getting Started or grab an API key at datamaxiplus.com/login.
Data Coverage
Exchanges, tokens, and datasets supported by DataMaxi+.
Scale (at a glance)
| Metric | Value |
|---|---|
| Exchanges | 20+ CEX + DEX |
| Tokens | 7,000+ |
| Pair combinations | 200,000+ / second scanned for arbitrage |
| Live tick latency | <100ms end-to-end |
Supported exchanges
DataMaxi+ supports 20+ CEX and DEX venues. The list below names exchanges referenced throughout the docs — it is representative, not exhaustive. Coverage depth (which datasets are available per venue) varies; check the relevant REST/WebSocket endpoint for the authoritative exchanges list.
Centralized exchanges (CEX)
| Venue | Region | Strengths |
|---|---|---|
| Binance | Global | Deep spot + perp coverage, reference funding rate. |
| Bybit | Global | Perpetuals, funding rate, liquidations. |
| OKX | Global | Spot + perp, open interest, orderbook. |
| MEXC | Global | Long-tail spot listings. |
| Upbit | Korea (KRW) | Korean kimchi premium leg, KRW-market listing announcements. |
| Bithumb | Korea (KRW) | Korean kimchi premium leg, symbol caution flags with expiry. |
| ...and more | Global / regional | Additional venues covered per dataset; check endpoint exchanges. |
Decentralized exchanges (DEX)
| Chain | Status | Notes |
|---|---|---|
| Kaia Chain | Live | All major DEXes — trade + candle endpoints. |
| BNB Chain | Roadmap | Coming soon. |
| More chains | Roadmap | Driven by customer demand. |
Tip: every endpoint that takes an
exchangequery parameter has a siblingexchangesendpoint that returns the authoritative supported list. Always trust that list over any table in the docs.
Dataset categories
CEX datasets (REST + WebSocket)
| Category | REST | WebSocket | Description |
|---|---|---|---|
| Candle | /rest/cex/candle | — | OHLCV across spot and futures, multiple intervals. |
| Ticker | /rest/cex/ticker | ws/cex/ticker | Latest price, 24h change, volume. |
| Funding rate | /rest/cex/funding-rate | ws/cex/funding-rate | Live + historical funding rates, settlement intervals, index price. |
| Premium | /rest/premium | ws/cex/premium | Cross-exchange spread for the same asset. The arbitrage primitive. |
| Trading fees | /rest/cex/trading-fees | — | Maker/taker by venue and symbol. |
| Wallet status | /rest/cex/wallet-status | — | Per-asset deposit/withdrawal availability. |
| Announcements | /rest/cex/announcements | ws/announcement/listing | Exchange listing announcements (KRW market focus). |
| Token updates | /rest/cex/token-updates | — | Symbol metadata changes, delistings, status flags. |
| Open interest | /rest/cex/open-interest/latest-open-interest | ws/cex/open-interest | Perp open interest snapshots and history. |
| Liquidations | /rest/cex/liquidation/liquidation-feed | ws/cex/liquidation-feed | Liquidation feed, time-series, KPI stats, leverage tier map. |
| Symbol metadata | /rest/cex/symbol/symbol-metadata | — | Tags, caution flags, per-exchange 24h volume. |
Cross-venue and ancillary
| Category | Path | Description |
|---|---|---|
| Forex | /rest/forex, ws/forex | Fiat-pair rates used to normalize cross-currency premium. |
| Trend | /rest/trend/naver | Naver search-volume trend (Korean retail sentiment proxy). |
| Telegram | /rest/telegram | Multilingual Telegram channel messages for alpha mining. |
| Listing | /rest/listing | Historical Upbit/Bithumb KRW-market listings. |
| Margin borrow | /rest/margin-borrow | Margin borrowing rates by venue. |
| Index price | /rest/index-price | Reference index price. |
What's the canonical list?
The single source of truth is the OpenAPI spec at /rest/info for REST and /ws/info for WebSocket. The SDKs and MCP server are generated from that spec — if it's in the spec, it's in every surface.
Reliability & SLA
Uptime, latency, and data-freshness posture — stated honestly.
Current posture (default plans)
These are operational targets for Free, Starter, Pro, and Pro+ tiers. They are not contractual SLAs unless you are on an enterprise agreement.
| Dimension | Target | Notes |
|---|---|---|
| REST availability | 99.5%+ rolling 30-day | Monthly windows include planned maintenance. |
| WebSocket availability | 99.5%+ rolling 30-day | Reconnect logic in SDKs is expected on the client side. |
| End-to-end tick latency | < 100ms (venue → DataMaxi+ WebSocket client) | Measured for major CEX tick + funding-rate streams. |
| REST snapshot freshness | ≤ 1s for hot datasets (ticker, premium, funding) | Reference data (trading fees, wallet status) refreshes minutes-scale. |
| Aggregated dataset freshness | ≤ 3s for premium / cross-exchange spreads | Default product update frequency is 3 seconds; selectable up to 30s in the hosted app. |
| Liquidation feed | Bucketed history cached ~30s server-side | Live feed pushes per-event on WebSocket. |
Connection requirements
WebSocket keep-alive
Connection keepalive is server-managed — the DataMaxi+ server sends WebSocket protocol Ping frames every 30 seconds, and any compliant WebSocket library will Pong back automatically. Clients are not required to send an application-level PING to hold the connection open.
Clients may optionally send {"method":"PING","id":int} as a client-side health check; it is accepted but has no effect on connection lifetime.
See WebSocket API › Ping for the full behavior.
Rate limits
REST API rate limit (default plans):
| Window | Requests per API key |
|---|---|
| 30 seconds | 20 |
Exceeding the limit returns HTTP 429. See Rate Limits for the per-tier table.
What we monitor
- Per-venue collector health — sequence-gap detection, reconnect counters, per-venue lag.
- Aggregator pipeline lag — time from raw tick → derived dataset publish.
- Edge latency — round-trip from public REST/WebSocket back to monitored probes.
- WebSocket fan-out backlog — slow-consumer detection.
We page on aggregator pipeline lag and venue feed loss. Status updates for major incidents are posted to our Telegram channel.
Enterprise SLAs
If you need a contractual SLA, dedicated capacity, custom datasets, or a tighter-than-default latency profile, reach out:
- Email — business@datamaxiplus.com
- Pricing page — datamaxiplus.com/pricing (form at the bottom routes to BD)
Typical enterprise terms cover:
- 99.9% rolling-monthly availability commitment with credit schedule.
- Named on-call channel (Telegram or Slack).
- Reserved REST/WebSocket capacity above the Pro+ default.
- Custom dataset additions (specific venues, custom intervals, bespoke aggregations).
- Direct VPN / private peering on request.
Honest caveats
A few things we want you to know going in:
- Free tier is best-effort. It's there for development and evaluation; please don't put production trading on the Free tier and then be surprised.
- Exchange outages propagate. If Binance is down, our Binance data is down — by definition. Cross-venue fallbacks help for derived datasets like premium, but a single-venue endpoint inherits the venue's uptime.
- Long-tail tokens have thinner coverage. A
BTC/USDTtick comes from every supported venue with the same fidelity. A new long-tail listing may only be on the venue(s) that list it. - Reference data is eventually-consistent. Trading fees, wallet status, and symbol metadata refresh on a schedule, not instantly. If you need real-time wallet status, talk to us.
Pricing & Tiers
For the live, authoritative pricing — including current promos and waiting-list links — see datamaxiplus.com/pricing.
DataMaxi+ ships in four tiers. Lower tiers cover the hosted web app; API access lands at Pro+.
Tier matrix
| Tier | Audience | Hosted app | API access |
|---|---|---|---|
| Free | Hobbyists, emerging investors | Core dashboards, BTC/ETH/SOL/DOGE/XRP | Limited (development / eval) |
| Starter | Beginners exploring arbitrage | + full token coverage on key dashboards | Limited |
| Pro | Professional investors using CEX and DEX | + advanced strategies, full venue list | Limited |
| Pro+ | Tech-savvy investors and quant teams | Everything in Pro | Full REST + WebSocket access |
Exact feature gates, rate limits, and pricing per tier are maintained on the pricing page so they don't drift here.
Free trial for the API
You can evaluate the REST and WebSocket API today on the Free tier — start with the API Getting Started guide. If you outgrow the eval rate limits, join the Pro+ waiting list on the pricing page.
Need more than Pro+?
For enterprise volume, dedicated capacity, custom datasets, or a contractual SLA:
- Email — business@datamaxiplus.com
- Pricing page form — questionnaire at the bottom routes to sales + BD
See Reliability & SLA for what an enterprise agreement typically covers.
Related
- Reliability & SLA — uptime, latency, freshness posture
- Data Coverage — exchanges and dataset categories
- API Getting Started — your first request