Futu

Futu Holdings Limited (NASDAQ: FUTU), operator of the Futubull and moomoo platforms, is a digital brokerage and wealth-management technology company. Its Futu OpenAPI gives developers programmatic access to real-time and historical market data and to trading across Hong Kong, US, China A-share, Singapore, Malaysia and Japan markets, plus options, futures, cryptocurrency and event (prediction) contracts. Rather than an HTTP/REST API, Futu exposes a proprietary Protocol Buffers (proto2) protocol over TCP through a locally run OpenD gateway, with official Python, Java, C#, C++ and JavaScript SDKs and an official MCP-compatible Agent Skill hub. Backed by Hongshan and Ribbit Capital.

Futu publishes 1 API on the APIs.io network. Tagged areas include Company, Technology, FinTech, Brokerage, and Trading.

Futu’s developer surface includes documentation, API reference, getting-started guide, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

20.0/100 emerging ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5

1 APIs 1 MCP Servers

CompanyTechnologyFinTechBrokerageTradingMarket DataStocksOptionsInvestingFinancial Services

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 20.0/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 11.3 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 9.3 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/futu: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Futu OpenAPI

Programmatic trading and market-data API for global markets, options, futures, crypto and event contracts. Proprietary Protocol Buffers protocol spoken over TCP to a locally run...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

MCPServer

MCPServer

LLMsTxt

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Idempotency

Idempotency

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Protobuf

Protobuf

Source (apis.yml)

aid: futu
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/futu.png
name: Futu
description: 'Futu Holdings Limited (NASDAQ: FUTU), operator of the Futubull and moomoo platforms, is a digital brokerage
  and wealth-management technology company. Its Futu OpenAPI gives developers programmatic access to real-time and historical
  market data and to trading across Hong Kong, US, China A-share, Singapore, Malaysia and Japan markets, plus options, futures,
  cryptocurrency and event (prediction) contracts. Rather than an HTTP/REST API, Futu exposes a proprietary Protocol Buffers
  (proto2) protocol over TCP through a locally run OpenD gateway, with official Python, Java, C#, C++ and JavaScript SDKs
  and an official MCP-compatible Agent Skill hub. Backed by Hongshan and Ribbit Capital.'
url: https://raw.githubusercontent.com/api-evangelist/futu/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- hongshan
- ribbit-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Technology
- FinTech
- Brokerage
- Trading
- Market Data
- Stocks
- Options
- Investing
- Financial Services
apis:
- name: Futu OpenAPI
  description: Programmatic trading and market-data API for global markets, options, futures, crypto and event contracts.
    Proprietary Protocol Buffers protocol spoken over TCP to a locally run OpenD gateway (default 127.0.0.1:11111) that proxies
    to Futu's servers; official SDKs for Python, Java, C#, C++ and JavaScript.
  humanURL: https://openapi.futunn.com/futu-api-doc/en/
  baseURL: https://openapi.futunn.com
  x-transport: protobuf-over-tcp-via-opend-gateway
  properties:
  - type: Protobuf
    url: grpc/futu-protobuf-index.yml
  - type: Conventions
    url: conventions/futu-conventions.yml
  - type: Idempotency
    url: conventions/futu-conventions.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://futuholdings.com
- type: DeveloperPortal
  url: https://openapi.futunn.com/futu-api-doc/en/
- type: Documentation
  url: https://openapi.futunn.com/futu-api-doc/en/
- type: APIReference
  url: https://static.futunn.com/upload/futu-api/Futu-API-Doc-en-Python.pdf
- type: GettingStarted
  url: https://openapi.futunn.com/futu-api-doc/en/quick/opend-base.html
- type: GitHubOrganization
  url: https://github.com/FutunnOpen
- type: Packages
  url: packages/futu-packages.yml
- type: SDKs
  url: packages/futu-packages.yml
- type: Protobuf
  url: grpc/futu-protobuf-index.yml
- type: AgentSkill
  url: skills/_index.yml
- type: MCPServer
  url: mcp/futu-mcp.yml
- type: Conventions
  url: conventions/futu-conventions.yml
- type: Idempotency
  url: conventions/futu-conventions.yml
- type: DomainSecurity
  url: security/futu-domain-security.yml
- type: LLMsTxt
  url: llms/futu-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence