dxFeed

dxFeed is a market data distributor and subsidiary of Devexperts, headquartered in Munich, delivering real-time, delayed, historical, and on-demand financial market data across equities, ETFs, futures, options, indices, FX, fixed income, and crypto (3.5M instruments, ~200,000 simultaneous streaming clients), plus reference data (instrument profiles, corporate actions, trading schedules), Morningstar-sourced fundamentals, options analytics, and news feeds. Delivery is developer-documented but sales-gated - production credentials (endpoint URLs, login, password) arrive via onboarding after contacting sales - across a REST web service with Server-Sent Events streaming, the dxLink WebSocket protocol (public AsyncAPI spec and live demo endpoint), a binary QD protocol over TCP, FIX, file-based historical/tick data extraction, and Java/C++/.NET/Swift/Go/JavaScript/Python client libraries.

dxFeed publishes 2 APIs on the APIs.io network: dxLink WebSocket API and Fundamentals API. Tagged areas include Financial, Market Data, Real-Time, Historical Data, and Equities.

The dxFeed catalog on APIs.io includes 1 event-driven AsyncAPI specification.

dxFeed’s developer surface includes authentication, sandbox, getting-started guide, API reference, developer portal, documentation, engineering blog, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.7/100 developing ▬ flat Agent 38/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessSelf serve

6 APIs 1 MCP Servers

FinancialMarket DataReal-TimeHistorical DataEquitiesOptionsFuturesCryptoReference DataFundamentals

Kin Score

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

Composite quality — 45.7/100 · developing

Contract Quality 10.5 / 21

Developer Ergonomics 10.8 / 17

Access Clarity 6.3 / 17

Operational Transparency 0.3 / 11

Contract Governance 1.7 / 10

Discoverability 6.1 / 9

Regulatory Posture 9.0 / 15

Agent readiness — 38/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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

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/dxfeed: 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 6

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

MCP Servers 1

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

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Sandbox

GettingStarted

Portal

SignUp

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

ErrorCatalog

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

Authentication

Compliance

TrustCenter

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

aid: dxfeed
url: https://raw.githubusercontent.com/api-evangelist/dxfeed/refs/heads/main/apis.yml
name: dxFeed
kind: company
description: dxFeed is a market data distributor and subsidiary of Devexperts, headquartered in Munich, delivering real-time,
  delayed, historical, and on-demand financial market data across equities, ETFs, futures, options, indices, FX, fixed income,
  and crypto (3.5M instruments, ~200,000 simultaneous streaming clients), plus reference data (instrument profiles, corporate
  actions, trading schedules), Morningstar-sourced fundamentals, options analytics, and news feeds. Delivery is developer-documented
  but sales-gated - production credentials (endpoint URLs, login, password) arrive via onboarding after contacting sales -
  across a REST web service with Server-Sent Events streaming, the dxLink WebSocket protocol (public AsyncAPI spec and live
  demo endpoint), a binary QD protocol over TCP, FIX, file-based historical/tick data extraction, and Java/C++/.NET/Swift/Go/JavaScript/Python
  client libraries.
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/dxfeed.png
tags:
- Financial
- Market Data
- Real-Time
- Historical Data
- Equities
- Options
- Futures
- Crypto
- Reference Data
- Fundamentals
created: '2026-07-21'
modified: '2026-07-22'
specificationVersion: '0.23'
apis:
- aid: dxfeed:dxfeed-rest-api
  name: dxFeed REST Web Service API
  tags:
  - Market Data
  - REST
  - Server-Sent Events
  - Quotes
  - Trades
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://kb.dxfeed.com/en/market-data-api/data-access-solutions/rest.html
  baseURL: https://demo.dxfeed.com/webservice/rest
  properties:
  - url: https://kb.dxfeed.com/en/market-data-api/data-access-solutions/rest.html
    type: Documentation
  - url: https://demo.dxfeed.com/webservice/rest/help
    type: APIReference
  - url: https://tools.dxfeed.com/webservice/rest-demo.jsp
    type: Sandbox
  description: REST service over the core dxFeed API with /events (snapshot), /eventSource (Server-Sent Events stream), /addSubscription,
    and /removeSubscription resources across 20+ market event types (Quote, Trade, Profile, Candle, Greeks, Order, Series)
    in JSON or XML. A public demo endpoint serves delayed data; production hosts and credentials are issued during sales onboarding.
- aid: dxfeed:dxfeed-dxlink-websocket-api
  name: dxFeed dxLink WebSocket API
  tags:
  - WebSocket
  - Streaming
  - Real-Time
  - Market Data
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://kb.dxfeed.com/en/market-data-api/data-access-solutions/websocket.html
  baseURL: wss://demo.dxfeed.com/dxlink-ws
  properties:
  - url: https://kb.dxfeed.com/en/market-data-api/data-access-solutions/websocket.html
    type: Documentation
  - url: asyncapi/dxfeed-dxlink-asyncapi.yml
    type: AsyncAPI
  - url: https://demo.dxfeed.com/market-data/dxlink-ws/debug/
    type: Sandbox
  - url: https://github.com/dxFeed/dxLink
    type: GitHubRepository
  description: dxLink is dxFeed's WebSocket protocol for real-time market data streaming with multiplexed virtual channels,
    authorization, and FEED/DOM (order book) service channels. The protocol is publicly specified as an AsyncAPI 2.4 document
    in the dxFeed/dxLink GitHub repository, with a live demo server (wss://demo.dxfeed.com/dxlink-ws) and an interactive debug
    console; client SDKs exist for JavaScript, Java, .NET, C++, and Swift.
- aid: dxfeed:dxfeed-ipf-webservice
  name: dxFeed Instrument Profile (IPF) Web Service
  tags:
  - Reference Data
  - Instruments
  - Symbology
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://kb.dxfeed.com/en/data-model/reference-data/ipf-webservice.html
  baseURL: https://tools.dxfeed.com/ipf
  properties:
  - url: https://kb.dxfeed.com/en/data-model/reference-data/ipf-webservice.html
    type: Documentation
  description: Reference-data web service for requesting instrument profiles in dxFeed's Instrument Profile Format (IPF),
    including live incremental updates, covering the 3.5M instruments in the dxFeed symbology universe. The documented host
    (https://tools.dxfeed.com/ipf) requires customer credentials (HTTP 401 without entitlements).
- aid: dxfeed:dxfeed-fundamentals-api
  name: dxFeed Fundamentals API
  tags:
  - Fundamentals
  - Equities
  - Morningstar
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://kb.dxfeed.com/en/data/fundamentals.html
  baseURL: https://tools.dxfeed.com/fs
  properties:
  - url: https://kb.dxfeed.com/en/data/fundamentals.html
    type: Documentation
  - url: openapi/dxfeed-fundamentals-openapi.json
    type: OpenAPI
  - url: overlays/dxfeed-fundamentals-overlay.yaml
    type: Overlay
  - url: mcp/dxfeed-mcp.yml
    type: MCPServer
  - url: data-model/dxfeed-data-model.yml
    type: DataModel
  description: Fundamental equity data sourced from Morningstar and Borsa Istanbul for ~45,000 companies - financial statements,
    valuations, dividends, earnings ratios, insider trading, corporate calendars - 28 datasets sharing a uniform /recent/symbol,
    /symbol, and /filter resource pattern, delivered as JSON from tools.dxfeed.com/fs (plus regional Morningstar hosts). The
    OpenAPI 3.1.0 spec (176 paths, 269 operations) is publicly served at tools.dxfeed.com/fs/v3/api-docs and harvested into
    this repository; production calls remain entitlement-gated.
- aid: dxfeed:dxfeed-fix-api
  name: dxFeed FIX API
  tags:
  - FIX
  - Market Data
  - Trading Systems
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://kb.dxfeed.com/en/market-data-api/data-access-solutions/fix.html
  properties:
  - url: https://kb.dxfeed.com/en/market-data-api/data-access-solutions/fix.html
    type: Documentation
  description: Industry-standard FIX protocol access to dxFeed market data for trading systems. Session endpoints and credentials
    are provisioned during onboarding; no public FIX gateway host is documented.
- aid: dxfeed:dxfeed-historical-data-services
  name: dxFeed Historical Data Services
  tags:
  - Historical Data
  - Tick Data
  - Candles
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://kb.dxfeed.com/en/data-services/historical-services.html
  properties:
  - url: https://kb.dxfeed.com/en/data-services/historical-services.html
    type: Documentation
  description: Historical data access covering candle/aggregated data and raw tick data extraction (dxFeed stores up to 10TB
    of raw data per day). The knowledge base documents how to request tick data and read extracted files; access hosts and
    credentials are entitlement-managed and issued by sales.
common:
- type: AgenticAccess
  url: agentic-access/dxfeed-agentic-access.yml
- type: Packages
  url: packages/dxfeed-packages.yml
- type: SDKs
  url: packages/dxfeed-packages.yml
- type: LLMsTxt
  url: llms/dxfeed-llms.txt
- type: Authentication
  url: authentication/dxfeed-authentication.yml
- type: Conventions
  url: conventions/dxfeed-conventions.yml
- type: Conformance
  url: conformance/dxfeed-conformance.yml
- type: Compliance
  url: https://dxfeed.com/trust-center/
- type: ErrorCatalog
  url: errors/dxfeed-problem-types.yml
- type: Lifecycle
  url: lifecycle/dxfeed-lifecycle.yml
- type: Sandbox
  url: sandbox/dxfeed-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
- type: GettingStarted
  url: https://kb.dxfeed.com/en/getting-started.html
- type: APIReference
  url: https://docs.dxfeed.com/dxfeed/api/index.html
- type: TrustCenter
  url: security/dxfeed-trust-center.yml
- type: DomainSecurity
  url: security/dxfeed-domain-security.yml
- type: Website
  url: https://dxfeed.com/
- type: Portal
  url: https://kb.dxfeed.com/en/getting-started.html
- type: Documentation
  url: https://kb.dxfeed.com/en/index-en.html
- type: GitHubOrganization
  url: https://github.com/dxFeed
- type: LinkedIn
  url: https://www.linkedin.com/company/dxfeed
- type: Blog
  url: https://dxfeed.com/dxfeed-news/
- type: SignUp
  url: https://get.dxfeed.com/
- type: Support
  url: https://dxfeed.com/support/
- type: TermsOfService
  url: https://dxfeed.com/terms-of-use/
- type: PrivacyPolicy
  url: https://dxfeed.com/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

dxFeed

Kin Score

APIs 6

dxFeed REST Web Service API

dxFeed dxLink WebSocket API

dxFeed Instrument Profile (IPF) Web Service

dxFeed Fundamentals API

dxFeed FIX API

dxFeed Historical Data Services

Open Collections 1

dxFeed Fundamentals API

MCP Servers 1

dxFeed MCP Server

Event Specifications 1

dxLink WebSocket

Security Posture 3

Dxfeed Authentication

Dxfeed Domain Security

Dxfeed Trust Center

Agentic Access 1

Dxfeed Agentic Access