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
47.5/100 developing ▬ flat Agent 44/100 agent ready Full breakdown ↓
scored 2026-08-12 · rubric v0.11.0
5 APIs 1 MCP Servers
stock-apiforex-apicrypto-apicommodities-apifutures-apimarket-datareal-time-datawebsocketfinancial-datafintechhistorical-data

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-12 · rubric v0.11.0
Composite quality — 47.5/100 · developing
Contract Quality 12.2 / 21
Developer Ergonomics 11.1 / 17
Commercial Clarity 7.6 / 17
Operational Transparency 2.3 / 11
Governance 1.2 / 10
Discoverability 6.9 / 9
Regulatory Posture 6.3 / 15
Agent readiness — 44/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
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 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
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/infoway-real-time-market-data-api: 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 5

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

Infoway WebSocket Streaming API

Persistent WebSocket connection for real-time trades, order-book depth, candlesticks and multilingual news. Integer protocol-code framing (10000 subscribe trade, 10002 trade pus...

Infoway Financial Data MCP Server

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...

Infoway Real-time Market Data API Common API

The Common API from Infoway Real-time Market Data API — 7 operation(s) for common.

Infoway Real-time Market Data API Crypto API

The Crypto API from Infoway Real-time Market Data API — 3 operation(s) for crypto.

Infoway Real-time Market Data API Stock API

The Stock API from Infoway Real-time Market Data API — 3 operation(s) for stock.

MCP Servers 1

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

infoway-real-time-market-data-api-mcp.yml

MCP SERVER

Rate Limits 1

Documented rate limits and quota policies.

Infoway Real Time Market Data Api Rate Limits

0 limits

RATE LIMITS

Event Specifications 1

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

Infoway WebSocket Streaming API

Real-time push of trades, order-book depth, candlesticks (K-line) and news over a single WebSocket connection. PROVENANCE: Infoway publishes NO AsyncAPI document. This document ...

ASYNCAPI

Security Posture 2

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

Infoway Real Time Market Data Api Authentication

apiKey · 3 schemes

SECURITY

Infoway Real Time Market Data Api Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Login
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
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
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
IssueTracker
 RateLimits
RateLimits
 StatusPage
StatusPage
 Support
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)

apis.yml Raw ↑ 
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://infoway-real-time-market-data-api.apievangelist.com/apis.yml
image: https://infoway.io/favicon.png
created: '2026-08-08'
modified: '2026-08-09'
specificationVersion: '0.21'
tags:
- 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
  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
  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