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

21.7/100 emerging ▬ flat Agent 28/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

1 APIs 1 MCP Servers

CompanyTechnologyFintechBrokerageTradingMarket DataStocksOptionsInvestingFinancial-Services

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 21.7/100 · emerging

Contract Quality 6.0 / 21

Developer Ergonomics 8.9 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 6.5 / 9

Regulatory Posture 1.5 / 15

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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/. 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: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Technology
- Fintech
- Brokerage
- Trading
- Market Data
- Stocks
- Options
- Investing
- Financial-Services
tags_raw:
- 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