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Betting exchange

SX Bet

Peer-to-peer crypto sports betting exchange with a public REST API for markets and orders and a realtime WebSocket feed for order books, scores and line updates.

Facts verified against the provider's site on

Commercial use: not disclosedBetting use: not disclosedNeutral
Visit official siteOpen API docsCompare
51

SportDex Score

#45 of 233 sports APIs

See the full ranking →
Popularity
36

Brand demand, developer discussions, GitHub repos and videos

Community & reliability
52

Tone of public discussions, liked vs criticised points, reliability complaints; based on only a few discussions, pulled towards neutral.

Transparency
65

Public prices, docs, terms and coverage you can check before calling sales

Developer experience
60

Free access, docs, SDKs, OpenAPI, sandbox, realtime delivery, ecosystem

Computed from public data only; uptime and latency are not measured yet. Enterprise feeds that sell by contract score lower on transparency by design. How the score works

Starting price
Not public
Free access
Free tier
Sports
1 (Multi-sport (40+))
Live data
Not disclosed
Delivery
Streaming (WebSocket)
Discussions
4 threads
GitHub adoption
77 repos

Best for

Not enough public detail to say.

Crypto sports betting integrations

Not ideal for

Nothing stated on its pages.

Limitations to check

  • − No pages were saved, so docs, auth and terms are unverified

Written from the provider's own pages (source).

Last checked 2026-11-03

SX Bet at a glance

How much does SX Bet cost?
SX Bet does not publish prices on the pages we checked.
Does SX Bet have a free tier?
Yes. SX Bet lists a free plan called "Public API".
What does SX Bet cover?
SX Bet is a betting exchange. Its sports: Multi-sport (40+); data: Trading & risk, Odds, Live scores.
Does SX Bet have a WebSocket or streaming API?
Yes. SX Bet pushes data continuously: WebSocket.
What do developers say about SX Bet?
Crypto sports betting exchange with a free public REST/WebSocket API. Developers use it to build market-making, iceberg-order and arbitrage bots, often AI-assisted, and aggregators route across it alongside Polymarket and Kalshi. Much tutorial content comes from the vendor. The official JS SDK is deprecated; little independent opinion on reliability or data quality.
What are the alternatives to SX Bet?
Close alternatives in the SportDex catalog: Matchbook Exchange, Polymarket, Smarkets, BETDAQ, Betfair Exchange API.

Commercial decision

Pricing & plan limits

PlanPriceRequestsWhat's included
Public APIFree—Free public REST reads; API key for WebSocketsource

Site blocked crawler; from search snippets. Sources disagreed on WebSocket transport (Centrifugo vs Ably). Trading uses wallet signatures. Treat auth details as uncertain.

Before choosing a paid plan, confirm

• What counts as one request (per call, per market, per region?)

• What happens when you exceed the quota: blocked or billed

• Whether live and historical data are on your plan

• Whether your use (public app, betting, resale) is licensed

The critical question

Data coverage

Sports
Multi-sport (40+)
Data types
Trading & riskOddsLive scores
Key competitions
Not disclosed
Competitions
Not disclosed
Live / in-play
Not disclosed
Women's competitions
Not disclosed
Betting markets
Not disclosed
Bookmaker regions
Not disclosed
Bookmakers
Not disclosed
History depth
Not disclosed
Update frequency
Not disclosed
Name languages
Not disclosed
ID mapping
Not disclosed

Coverage often depends on the plan; confirm the exact league and season on your plan.

Before you build

Usage rights & access

Commercial use
Not disclosed
Betting products
Not disclosed
Redistribution
Not disclosed
Storing data
Not disclosed
Attribution
Not disclosed
Logos & photos
Not disclosed
Who can buy
Not disclosed
Verification (KYC)
Not disclosed
Not available in
Not disclosed
Only available in
Not disclosed

Developer-ready evaluation

Integration & documentation

Protocols
RESTWebSocket
Formats
JSON
Authentication
api key
SDKs
Not disclosed
OpenAPI spec
Not disclosed
Claimed latency
Not disclosed
Status page
Not disclosed
Sandbox / test keys
Not disclosed
Support
Not disclosed
SLA uptime
Not disclosed
Preview brief
# Integration brief: SX Bet

Goal: build a feature on SX Bet data. Use only the official documentation below as the source of truth.

## Known facts (from SportDex, verify before relying on them)
- Website: https://sx.bet
- Docs: https://api.docs.sx.bet
- Sports: Multi-sport (40+)
- Data: Trading & risk, Odds, Live scores
- Protocols: REST, WebSocket; formats: json
- Auth: api_key
- Free plan: Public API
- Note: Site blocked crawler; from search snippets. Sources disagreed on WebSocket transport (Centrifugo vs Ably). Trading uses wallet signatures. Treat auth details as uncertain.

## Verify before writing code
- live update frequency
- whether commercial use is allowed on the plan you pick
- exact endpoint paths, parameters and response fields (read the official docs, do not guess)

## Implementation rules
- Keep the API key on the server (environment variable, backend route or edge function); never ship it to the browser.
- Cache responses and respect rate limits; count how many requests each screen triggers.
- Handle errors explicitly: invalid key, quota exceeded (429), missing fields, empty fixtures, timeouts.
- Start with one demo request and log the raw response before building UI on assumed field names.

Data quality signals

Data source & company

Official partners
Not disclosed
How data is collected
Not disclosed
Certifications
Not disclosed
Payment methods
Not disclosed
Minimum contract
Not disclosed
Country
Not disclosed
Founded
Not disclosed

Reddit · Hacker News · Stack Overflow · GitHub · YouTube

What developers say

Neutralfree tierdocsalternatives

Crypto sports betting exchange with a free public REST/WebSocket API. Developers use it to build market-making, iceberg-order and arbitrage bots, often AI-assisted, and aggregators route across it alongside Polymarket and Kalshi. Much tutorial content comes from the vendor. The official JS SDK is deprecated; little independent opinion on reliability or data quality.

Praised for

  • API is open and free to use
  • Supports maker and taker order flow for bots

Complaints

  • Official JS SDK deprecated

Our summary of public discussions, not a rating. Vendor posts are not counted as user opinion.

Discussions

Shortlist next steps

Alternatives worth comparing

  • Matchbook ExchangeBetting exchange30

    UK betting exchange offering a REST API for markets, offers and account data; read-only market data reportedly works without login, trading needs a funded account.

    Multi-sport (40+)
    Price not public0 discussions · 17 repos
  • PolymarketBetting exchange67

    Prediction market exchange whose public Gamma API lists markets and events, including sports, without credentials; separate trading APIs and SDKs exist.

    Free tierMulti-sport (40+)
    Free tier52 discussions · 4.5k repos
  • SmarketsBetting exchange31

    UK person-to-person betting exchange offering a streaming trading API for order entry and market data, with an official Python client.

    ⚡ StreamingMulti-sport (40+)Football (soccer)Horse racing
    Price not public4 discussions · 38 repos
  • BETDAQBetting exchange29

    UK betting exchange whose webservice API is open to verified account holders for a one-off fee, and which offers a streaming commercial API to operators.

    Multi-sport (40+)
    from £250 one-time8 discussions · 3 repos
  • Betfair Exchange APIBetting exchange60

    Betfair's developer API for its betting exchange: market prices, order books and bet placement. Free delayed key for development; live key needs an approved application and a one-off fee.

    Free tier
    from £299 one-time30 discussions · 272 repos
Polymarket vs SX BetSX Bet vs Matchbook ExchangeSX Bet vs SmarketsSX Bet vs BETDAQBetfair Exchange API vs SX Bet

Evidence & transparency

Official sources

Facts were extracted from the provider's own pages on 2026-11-03. Empty fields mean the provider does not say, not that the feature is missing. How we know