Qfex

QFEX is the first 24/7 exchange built exclusively for US equities, commodities, and FX, offering high-leverage perpetual futures on traditional assets without a broker. Founded by former Tower Research and Citadel engineers who met studying mathematics at Cambridge, QFEX gives retail and institutional traders direct, high-frequency access to markets around the clock. Its developer platform exposes a REST API for historic market data and account operations, two multiplexed WebSocket gateways (market data and trading) documented with AsyncAPI 3.0, and a JSON-native CLI purpose-built for agentic trading workflows. Authentication uses HMAC-SHA256 request signing with public/secret API key pairs.

Qfex publishes 5 API contracts indexed on the APIs.io network, including Market Data WebSocket (MDS), Trade WebSocket, Market Data API, and 2 more. Tagged areas include Company, Trading, Exchange, Perpetual Futures, and Market Data.

The Qfex catalog on APIs.io includes 3 event-driven AsyncAPI specifications.

Qfex’s developer surface includes documentation, API reference, getting-started guide, authentication, CLI, sandbox, changelog, and 27 more developer resources.

🌐 Visit website 📡 Source on GitHub

51.3/100 developing ▬ flat Agent 29/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

1 published contract

Company Trading Exchange Perpetual Futures Market Data WebSocket Foreign Exchange Commodities Stocks Financial Services CLI Fintech Real-Time

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Capital Markets Trading Management

BC-1370

user

GET /user/account-equity GET /user/historic-pnl POST /user/leverage GET /user/positions

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 51.3/100 · developing

Contract Quality 10.1 / 19

Developer Ergonomics 11.0 / 15

Access Clarity 6.7 / 15

Operational Transparency 4.4 / 10

Contract Governance 0.4 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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

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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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/. 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 github.com/api-evangelist/qfex: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

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.

WebSockets

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 5

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

QFEX Market Data WebSocket (MDS)

Multiplexed WebSocket gateway for all QFEX real-time market data streams: order book, trades, candles, BBO, mark price, funding rate, open interest, market stats and reference d...

QFEX Trade WebSocket

Multiplexed WebSocket gateway for QFEX order entry and account streams: add / modify / cancel orders, stop orders, TWAPs, close position, leverage, balances, positions, fills an...

Qfex Market Data API

The market-data API from Qfex — 9 operation(s) for market-data.

Qfex Pnl API

The pnl API from Qfex — 1 operation(s) for pnl.

Qfex User API

The user API from Qfex — 15 operation(s) for user.

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

QFEX REST market-data API

OPEN COLLECTION

QFEX REST market-data pnl API

OPEN COLLECTION

QFEX REST market-data user API

OPEN COLLECTION

Event Specifications 3

AsyncAPI definitions for this provider's event-driven and streaming APIs.

QFEX Multiplexed WebSocket API

Single WebSocket gateway for all QFEX real‑time streams. Clients publish subscription and order commands here, and receive all updates over the same endpoint.

ASYNCAPI

QFEX Multiplexed WebSocket API

Single WebSocket gateway for all QFEX real‑time streams. Clients publish subscription and order commands here, and receive all updates over the same endpoint.

ASYNCAPI

QFEX Multiplexed WebSocket API

Single WebSocket gateway for all QFEX real‑time streams. Clients publish subscription and order commands here, and receive all updates over the same endpoint.

ASYNCAPI

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Qfex Openapi Overlay

2 actions · update · qfex-openapi-original.yml

UNRECORDED

Security Posture 3

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

Qfex Authentication

apiKey · 4 schemes

SECURITY

Qfex Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Qfex Vulnerability Disclosure

contact published

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

Sandbox

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

Lifecycle

Conformance

ErrorCatalog

Build 3

SDKs, sample code, and the tooling you integrate with

CLI

CLI

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

StatusPage

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: qfex
name: Qfex
description: QFEX is the first 24/7 exchange built exclusively for US equities, commodities, and FX, offering high-leverage
  perpetual futures on traditional assets without a broker. Founded by former Tower Research and Citadel engineers who met
  studying mathematics at Cambridge, QFEX gives retail and institutional traders direct, high-frequency access to markets
  around the clock. Its developer platform exposes a REST API for historic market data and account operations, two multiplexed
  WebSocket gateways (market data and trading) documented with AsyncAPI 3.0, and a JSON-native CLI purpose-built for agentic
  trading workflows. Authentication uses HMAC-SHA256 request signing with public/secret API key pairs.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://qfex.com/qfex-logo-with-text-for-metadata.png
url: https://raw.githubusercontent.com/api-evangelist/qfex/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
x-docs-hosting: vercel
tags:
- Company
- Trading
- Exchange
- Perpetual Futures
- Market Data
- WebSocket
- Foreign Exchange
- Commodities
- Stocks
- Financial Services
- CLI
- Fintech
- Real-Time
tags_raw:
- Company
- Trading
- Exchange
- Perpetual Futures
- Market Data
- WebSocket
- FX
- Commodities
- Equities
- Financial Services
- CLI
- Fintech
- Real-time
- Financial-Services
apis:
- name: QFEX Market Data WebSocket (MDS)
  description: 'Multiplexed WebSocket gateway for all QFEX real-time market data streams: order book, trades, candles, BBO,
    mark price, funding rate, open interest, market stats and reference data. Documented as AsyncAPI 3.0.'
  humanURL: https://docs.qfex.com/websocket/mds
  baseURL: wss://mds.qfex.com
  tags:
  - Market Data
  - WebSocket
  - Real-Time
  tags_raw:
  - Market Data
  - WebSocket
  - Real-time
  properties:
  - type: AsyncAPI
    url: asyncapi/qfex-mds-asyncapi.yml
- name: QFEX Trade WebSocket
  description: 'Multiplexed WebSocket gateway for QFEX order entry and account streams: add / modify / cancel orders, stop
    orders, TWAPs, close position, leverage, balances, positions, fills and order responses. Requires HMAC-SHA256 authentication
    within one minute of connecting. Documented as AsyncAPI 3.0.'
  humanURL: https://docs.qfex.com/websocket/trade
  baseURL: wss://trade.qfex.com
  tags:
  - Trading
  - WebSocket
  - Real-Time
  tags_raw:
  - Trading
  - WebSocket
  - Real-time
  properties:
  - type: AsyncAPI
    url: asyncapi/qfex-trade-asyncapi.yml
  - type: Webhooks
    url: asyncapi/qfex-trade-asyncapi.yml
- aid: qfex:qfex-market-data-api
  name: Qfex Market Data API
  description: The market-data API from Qfex — 9 operation(s) for market-data.
  humanURL: https://docs.qfex.com/api-reference/introduction
  baseURL: https://api.qfex.com
  tags:
  - Market Data
  tags_raw:
  - market-data
  properties:
  - type: OpenAPI
    url: openapi/qfex-market-data-api-openapi.yml
  - type: Authentication
    url: authentication/qfex-authentication.yml
  - type: ErrorCatalog
    url: errors/qfex-problem-types.yml
  - type: DataModel
    url: data-model/qfex-data-model.yml
- aid: qfex:qfex-pnl-api
  name: Qfex Pnl API
  description: The pnl API from Qfex — 1 operation(s) for pnl.
  humanURL: https://docs.qfex.com/api-reference/introduction
  baseURL: https://api.qfex.com
  tags:
  - PNL
  tags_raw:
  - pnl
  properties:
  - type: OpenAPI
    url: openapi/qfex-pnl-api-openapi.yml
  - type: Authentication
    url: authentication/qfex-authentication.yml
  - type: ErrorCatalog
    url: errors/qfex-problem-types.yml
  - type: DataModel
    url: data-model/qfex-data-model.yml
- aid: qfex:qfex-user-api
  name: Qfex User API
  description: The user API from Qfex — 15 operation(s) for user.
  humanURL: https://docs.qfex.com/api-reference/introduction
  baseURL: https://api.qfex.com
  tags:
  - User
  tags_raw:
  - user
  properties:
  - type: OpenAPI
    url: openapi/qfex-user-api-openapi.yml
  - type: Authentication
    url: authentication/qfex-authentication.yml
  - type: ErrorCatalog
    url: errors/qfex-problem-types.yml
  - type: DataModel
    url: data-model/qfex-data-model.yml
common:
- url: https://research.qfex.com/feed
  type: BlogRSS
- type: Website
  url: https://www.qfex.com/
- type: CapabilityMap
  url: capabilities/qfex-capability-edges.yml
  name: Qfex Business Capability Map
- type: Overlay
  url: overlays/qfex-openapi-overlay.yaml
- type: DeveloperPortal
  url: https://docs.qfex.com
- type: Documentation
  url: https://docs.qfex.com
- type: APIReference
  url: https://docs.qfex.com/api-reference/introduction
- type: GettingStarted
  url: https://docs.qfex.com/api-reference/introduction
- type: Authentication
  url: authentication/qfex-authentication.yml
- type: CLI
  url: cli/qfex-cli.yml
- type: Packages
  url: packages/qfex-packages.yml
- type: Sandbox
  url: sandbox/qfex-sandbox.yml
- type: Conventions
  url: conventions/qfex-conventions.yml
- type: Idempotency
  url: conventions/qfex-conventions.yml
- type: RateLimits
  url: https://docs.qfex.com/websocket/rate
- type: ChangeLog
  url: changelog/qfex-changelog.yml
- type: Lifecycle
  url: lifecycle/qfex-lifecycle.yml
- type: StatusPage
  url: https://status.qfex.com
- type: X-MCPServerCandidate
  url: mcp/qfex-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/qfex-llms.txt
- type: Conformance
  url: conformance/qfex-conformance.yml
- type: ErrorCatalog
  url: errors/qfex-problem-types.yml
- type: DomainSecurity
  url: security/qfex-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/qfex-vulnerability-disclosure.yml
- type: Security
  url: https://docs.qfex.com/legal/bug-bounty
- type: GitHubOrganization
  url: https://github.com/QFEX-org
- type: Blog
  url: https://blog.qfex.com
- type: Support
  url: mailto:support@qfex.com
- type: Pricing
  url: https://docs.qfex.com/qfex/fees
- type: SignUp
  url: https://www.qfex.com/signup
- type: Login
  url: https://www.qfex.com/login
- type: TermsOfService
  url: https://docs.qfex.com/legal/client-agreement
- type: PrivacyPolicy
  url: https://docs.qfex.com/legal/privacy-policy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 22
  pass: local-v1

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