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 is listed with 1 API on the APIs.io network. Tagged areas include Company, Technology, Fintech, Brokerage, and Trading.

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

🌐 Visit website 📡 Profile data on GitHub

22.2/100 emerging ▬ flat Agent 23/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive library Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 1 MCP Servers 2 Agent Skills

Company Technology Fintech Brokerage Trading Market Data Stocks Options Investing Financial Services

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 22.2/100 · emerging

Contract Quality 5.1 / 21

Developer Ergonomics 9.3 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 6.1 / 9

Regulatory Posture 0.8 / 15

Agent readiness — 23/100 · 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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<a href="https://apis.io/providers/futu/"><img src="https://apis.io/badge/futu/card.svg" alt="Futu on APIs.io — Kin Score by API Evangelist"></a>

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Agent readiness — checks not met, largest first (exact, from this profile):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 24.0 — up to +19.0 composite points
Operational Transparency scores 2.6 — up to +12.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/futu/apis.yml: open an issue on github.com/api-evangelist/futu to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Agent Skills (SKILL.md packages)	undeclared	-	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Agent Skills

measured — observed by APIs.io (published)

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.

Futu MCP Server

Futu does not publish a hosted/remote MCP server. Instead it ships the official "Futu Agent Hub", an MCP-compatible Agent Skill center that connects AI tools (Claude Code, Curso...

MCP SERVER

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

futuapi

AGENT SKILL

install-futu-opend

AGENT SKILL

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Futu Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

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 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Protobuf

Protobuf

Source (apis.yml)

aid: futu
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  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: '2026-10-06'
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
- 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:
- url: https://futuholdings.com/en-us/news
  type: Blog
- 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

Futu API — frequently asked questions

Does Futu have an API?

Yes. APIs.io lists 1 API from Futu, including Futu OpenAPI.

Does Futu have an MCP server?

Yes. APIs.io lists 1 MCP server for Futu: Futu does not publish a hosted/remote MCP server. Instead it ships the official "Futu Agent Hub", an MCP-compatible Agent Skill center that connects AI tools (Claude Code, Cursor, Claude Desktop, VS C

Is the Futu API ready for AI agents?

Futu has a Kin Score of 22.2 out of 100 (emerging) and an Agent Readiness score of 23.2 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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Every operation they expose

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How their score was established

curl "https://apis.io/api/v1/providers/futu/evidence"

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