Infoway Real-time Market Data API

Infoway is a real-time and historical financial market-data provider covering equities (US, Hong Kong, China A-shares, Japan, South Korea, India), forex, cryptocurrencies across 30+ exchanges, and commodities/futures. It ships two surfaces from the host data.infoway.io: a REST/HTTP API for symbol reference data, trading calendars, last-trade ticks, order-book depth and candlestick (K-line) history, and a WebSocket streaming API that pushes trades, depth, candles and multilingual news with millisecond latency. Both authenticate with a single API key whose entitlements follow the plan it was issued against (Free through Professional). Infoway publishes per-endpoint OpenAPI 3.0.0 definitions on its ReadMe developer hub, official Python, Node.js and Java SDKs, an llms.txt documentation index, and a stdio MCP server exposing 17 financial-data tools with a provider-authored Agent Skill.

Infoway Real-time Market Data API publishes 4 APIs on the APIs.io network, including Infoway WebSocket Streaming API, Common API, Crypto API, and 1 more. Tagged areas include stock-api, forex-api, crypto-api, commodities-api, and futures-api.

The Infoway Real-time Market Data API catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Infoway Real-time Market Data API’s developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, pricing, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.0/100 developing ▬ flat Agent 39/100 agent native Full breakdown ↓
scored 2026-09-04 · rubric v0.18.3

1 APIs 1 MCP Servers

stock-apiforex-apicrypto-apicommodities-apifutures-apiMarket Data Real-Time Data WebSocket Financial Data Fintech Historical Data

Kin Score

Kin Score How this is scored →
scored 2026-09-04 · rubric v0.18.3

Composite quality — 45.0/100 · developing

Contract Quality 11.1 / 21

Developer Ergonomics 11.5 / 17

Access Clarity 7.6 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.5 / 10

Discoverability 6.5 / 9

Regulatory Posture 6.3 / 15

Agent readiness — 39/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 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 4 / 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.

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/. 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/infoway-real-time-market-data-api: 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 →

APIs 5

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.

Infoway Real-time Market Data API MCP Server

MCP SERVER

Rate Limits 1

Documented rate limits and quota policies.

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

IssueTracker

RateLimits

StatusPage

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

name: Infoway Real-time Market Data API
description: 'Infoway is a real-time and historical financial market-data provider covering equities (US, Hong Kong, China
  A-shares, Japan, South Korea, India), forex, cryptocurrencies across 30+ exchanges, and commodities/futures. It ships two
  surfaces from the host data.infoway.io: a REST/HTTP API for symbol reference data, trading calendars, last-trade ticks,
  order-book depth and candlestick (K-line) history, and a WebSocket streaming API that pushes trades, depth, candles and
  multilingual news with millisecond latency. Both authenticate with a single API key whose entitlements follow the plan it
  was issued against (Free through Professional). Infoway publishes per-endpoint OpenAPI 3.0.0 definitions on its ReadMe developer
  hub, official Python, Node.js and Java SDKs, an llms.txt documentation index, and a stdio MCP server exposing 17 financial-data
  tools with a provider-authored Agent Skill.'
url: https://raw.githubusercontent.com/api-evangelist/infoway-real-time-market-data-api/refs/heads/main/apis.yml
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
image: https://infoway.io/favicon.png
created: '2026-08-08'
modified: '2026-08-09'
specificationVersion: '0.23'
tags:
- stock-api
- forex-api
- crypto-api
- commodities-api
- futures-api
- Market Data
- Real-Time Data
- WebSocket
- Financial Data
- Fintech
- Historical Data
tags_raw:
- stock-api
- forex-api
- crypto-api
- commodities-api
- futures-api
- market-data
- real-time-data
- websocket
- financial-data
- fintech
- historical-data
apis:
- name: Infoway WebSocket Streaming API
  description: Persistent WebSocket connection for real-time trades, order-book depth, candlesticks and multilingual news.
    Integer protocol-code framing (10000 subscribe trade, 10002 trade push, 10003/10005 depth, 10006/10008 candles, 10020/10022
    news, 11000-11002 unsubscribe) with a client-supplied trace id and a mandatory heartbeat (code 10010) at least once per
    minute. API key is supplied as the apikey query parameter on the connection URL.
  humanURL: https://docs.infoway.io/websocket-api/endpoints.md
  baseURL: wss://data.infoway.io/ws
  tags:
  - WebSocket
  - Real-Time Data
  - Market Data
  - stock-api
  - crypto-api
  - forex-api
  - Financial Data
  tags_raw:
  - websocket
  - real-time-data
  - market-data
  - stock-api
  - crypto-api
  - forex-api
  - financial-data
  properties:
  - type: AsyncAPI
    url: asyncapi/infoway-real-time-market-data-api-streaming-asyncapi.yml
  - type: Documentation
    url: https://docs.infoway.io/websocket-api/endpoints.md
  - type: APIReference
    url: https://infoway.readme.io/reference/ws-subscription
- name: Infoway Financial Data MCP Server
  description: Official Model Context Protocol server (PyPI infoway-mcp-server) exposing 17 tools over stdio for real-time
    quotes, depth, K-line, market temperature and breadth, global indexes, industry and concept sectors, plate members and
    heatmaps, and single-stock fundamentals (company overview, valuation, analyst ratings, panorama, price drivers). Authenticated
    with the same API key via the INFOWAY_API_KEY environment variable. Local/stdio only — there is no hosted remote endpoint.
  humanURL: https://docs.infoway.io/sdk-and-tools/mcp-server.md
  baseURL: https://data.infoway.io
  tags:
  - MCP
  - Agents
  - Market Data
  - Financial Data
  - Real-Time Data
  tags_raw:
  - mcp
  - agents
  - market-data
  - financial-data
  - real-time-data
  properties:
  - type: MCPServer
    url: mcp/infoway-real-time-market-data-api-mcp.yml
  - type: ToolCrosswalk
    url: mcp/infoway-real-time-market-data-api-tool-crosswalk.yml
  - type: Documentation
    url: https://docs.infoway.io/sdk-and-tools/mcp-server.md
  - type: SourceCode
    url: https://github.com/infoway-api/infoway-mcp-server
- aid: infoway-real-time-market-data-api:infoway-real-time-market-data-api-common-api
  name: Infoway Real-time Market Data API Common API
  description: The Common API from Infoway Real-time Market Data API — 7 operation(s) for common.
  humanURL: https://infoway.readme.io/reference/quick-start
  baseURL: https://data.infoway.io
  tags:
  - Common
  properties:
  - type: OpenAPI
    url: openapi/infoway-real-time-market-data-api-common-api-openapi.yml
  - type: Documentation
    url: https://docs.infoway.io/rest-api/http-endpoints
  - type: APIReference
    url: https://infoway.readme.io/reference/quick-start
  - type: LLMsTxt
    url: https://docs.infoway.io/llms.txt
- aid: infoway-real-time-market-data-api:infoway-real-time-market-data-api-crypto-api
  name: Infoway Real-time Market Data API Crypto API
  description: The Crypto API from Infoway Real-time Market Data API — 3 operation(s) for crypto.
  humanURL: https://infoway.readme.io/reference/quick-start
  baseURL: https://data.infoway.io
  tags:
  - Crypto
  properties:
  - type: OpenAPI
    url: openapi/infoway-real-time-market-data-api-crypto-api-openapi.yml
  - type: Documentation
    url: https://docs.infoway.io/rest-api/http-endpoints
  - type: APIReference
    url: https://infoway.readme.io/reference/quick-start
  - type: LLMsTxt
    url: https://docs.infoway.io/llms.txt
- aid: infoway-real-time-market-data-api:infoway-real-time-market-data-api-stock-api
  name: Infoway Real-time Market Data API Stock API
  description: The Stock API from Infoway Real-time Market Data API — 3 operation(s) for stock.
  humanURL: https://infoway.readme.io/reference/quick-start
  baseURL: https://data.infoway.io
  tags:
  - Stock
  properties:
  - type: OpenAPI
    url: openapi/infoway-real-time-market-data-api-stock-api-openapi.yml
  - type: Documentation
    url: https://docs.infoway.io/rest-api/http-endpoints
  - type: APIReference
    url: https://infoway.readme.io/reference/quick-start
  - type: LLMsTxt
    url: https://docs.infoway.io/llms.txt
maintainers:
- FN: Infoway Real-time Market Data API
  url: https://infoway.io/en
  email: hi@infoway.io
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 93
  at: '2026-08-08T07:31:04.745Z'
common:
- type: Overlay
  url: overlays/infoway-real-time-market-data-api-openapi-overlay.yaml
- type: IssueTracker
  url: https://github.com/infoway-api/infoway-mcp-server/issues
- type: DomainSecurity
  url: security/infoway-real-time-market-data-api-domain-security.yml
- type: Authentication
  url: authentication/infoway-real-time-market-data-api-authentication.yml
- type: Packages
  url: packages/infoway-real-time-market-data-api-packages.yml
- type: SDKs
  url: packages/infoway-real-time-market-data-api-packages.yml
- type: Conventions
  url: conventions/infoway-real-time-market-data-api-conventions.yml
- type: ErrorCatalog
  url: errors/infoway-real-time-market-data-api-error-codes.yml
- type: RateLimits
  url: rate-limits/infoway-real-time-market-data-api-rate-limits.yml
- type: Lifecycle
  url: lifecycle/infoway-real-time-market-data-api-lifecycle.yml
- type: StatusPage
  url: https://status.infoway.io
- type: Conformance
  url: conformance/infoway-real-time-market-data-api-conformance.yml
- type: DataModel
  url: data-model/infoway-real-time-market-data-api-data-model.yml
- type: LLMsTxt
  url: llms/infoway-real-time-market-data-api-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: DeveloperPortal
  url: https://docs.infoway.io/
- type: Documentation
  url: https://docs.infoway.io/
- type: APIReference
  url: https://infoway.readme.io/reference/quick-start
- type: GettingStarted
  url: https://docs.infoway.io/getting-started/quick-start
- type: Support
  url: https://infoway.io/en/feedback
- type: Blog
  url: https://blog.infoway.io/en/
- type: GitHubOrganization
  url: https://github.com/infoway-api
- type: Pricing
  url: https://infoway.io/en#pricing
- type: SignUp
  url: https://infoway.io/en/create-account
- type: Login
  url: https://infoway.io/en/login
- type: TermsOfService
  url: https://infoway.io/en/terms-and-conditions
- type: PrivacyPolicy
  url: https://infoway.io/en/privacy-policy
x-enrichment:
  date: '2026-08-09'
  status: enriched
  artifacts_added: 19
  pass: local-v1

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Infoway Real-time Market Data API

Kin Score

APIs 5

Infoway WebSocket Streaming API

Infoway Financial Data MCP Server

Infoway Real-time Market Data API Common API

Infoway Real-time Market Data API Crypto API

Infoway Real-time Market Data API Stock API

Open Collections 4

API Collection

REST Common API

REST Crypto API

REST Stock API