aid: htx
name: HTX
description: >-
  HTX (formerly Huobi Global) is a cryptocurrency exchange founded in 2013 that
  offers spot trading, futures and derivatives, margin trading, trading bots,
  copy trading, and earn/staking products across BTC, ETH, XRP and 600+ digital
  assets. HTX exposes a public developer platform (HTX Open Platform) with a REST
  API and a WebSocket streaming API covering market data, account and wallet
  management, sub-user administration, spot and conditional order placement, and
  cross/isolated margin lending. Requests are authenticated with an AccessKey and
  an HMAC-SHA256 (Signature Version 2) request signature. Official client SDKs are
  published under the HuobiRDCenter GitHub organization for Java, Python, Go, C++
  and C#, with separate contract/futures variants. HTX was surfaced as a portfolio
  company of Hongshan (formerly Sequoia Capital China).
url: https://raw.githubusercontent.com/api-evangelist/htx/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.htx.com/favicon.ico
x-type: company
x-source: vc-portfolio
x-backed-by:
- hongshan
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Technology
- Cryptocurrency
- Crypto Exchange
- Trading
- Digital Assets
- Blockchain
- Financial Services
- Market Data
- WebSocket
apis:
- aid: htx:htx-spot-api
  name: HTX Spot REST API
  humanURL: https://www.htx.com/en-us/opend/newApiPages/
  baseURL: https://api.huobi.pro
  tags:
  - Market Data
  - Account
  - Wallet
  - Orders
  - Trading
  - Margin
  - Sub-user
  properties:
  - url: https://www.htx.com/en-us/opend/newApiPages/
    type: Documentation
  - url: https://huobiapi.github.io/docs/spot/v1/en/
    type: APIReference
  description: >-
    The HTX Spot REST API provides HTTP access to reference data (system status,
    symbols, currencies, chains), market data (klines, tickers, depth, trades, 24h
    summaries), account and balance information, wallet deposits/withdrawals,
    sub-user management, spot and conditional order placement and querying, and
    cross/isolated margin lending. Base hosts are api.huobi.pro and the
    AWS-optimized api-aws.huobi.pro. Authentication uses AccessKeyId plus an
    HMAC-SHA256 Signature Version 2 request signature.
- aid: htx:htx-websocket-api
  name: HTX WebSocket API
  humanURL: https://www.htx.com/en-us/opend/newApiPages/
  baseURL: https://api.huobi.pro
  tags:
  - WebSocket
  - Market Data
  - Streaming
  - Account
  - Orders
  properties:
  - url: https://www.htx.com/en-us/opend/newApiPages/
    type: Documentation
  - url: https://huobiapi.github.io/docs/spot/v1/en/
    type: APIReference
  description: >-
    The HTX WebSocket API provides a two-way real-time channel for subscribing to
    market data (klines, market depth, trade detail, best bid/offer) and to
    authenticated account and order update topics. Public market data streams over
    wss://api.huobi.pro/ws and authenticated account/order streams over
    wss://api.huobi.pro/ws/v2, with heartbeat and rate-limit controls.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://htx.com
- type: DeveloperPortal
  url: https://www.htx.com/en-us/opend/
- type: Documentation
  url: https://www.htx.com/en-us/opend/newApiPages/
- type: APIReference
  url: https://huobiapi.github.io/docs/spot/v1/en/
- type: GettingStarted
  url: https://www.htx.com/support/360000203002
- type: GitHubOrganization
  url: https://github.com/HuobiRDCenter
- type: Support
  url: https://www.htx.com/support/
- type: TermsOfService
  url: https://www.htx.com/support/360000298561/
- type: PrivacyPolicy
  url: https://www.htx.com/en-us/about/privacy/
- type: SignUp
  url: https://www.htx.com/en-us/register/
- type: ChangeLog
  url: changelog/htx-changelog.yml
- type: Packages
  url: packages/htx-packages.yml
- type: SDKs
  url: packages/htx-packages.yml
- type: Authentication
  url: authentication/htx-authentication.yml
- type: Conventions
  url: conventions/htx-conventions.yml
- type: ErrorCatalog
  url: errors/htx-error-codes.yml
- type: Lifecycle
  url: lifecycle/htx-lifecycle.yml
- type: RateLimits
  url: rate-limits/htx-rate-limits.yml
- type: Conformance
  url: conformance/htx-conformance.yml
- type: DomainSecurity
  url: security/htx-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence