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 5 API contracts indexed on the APIs.io network, including Infoway WebSocket Streaming API, Common API, Crypto API, and 2 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 and 1 Spectral governance ruleset.

Infoway Real-time Market Data API’s developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, pricing, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

57.3/100 strong ▬ flat Agent 41/100 agent native Front door AI 1/6 silent Heartbeat 95/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serveFree trial⚡ Free to try

1 published contract 1 MCP Servers 2 Agent Skills

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

Kin Score

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

Composite quality — 57.3/100 · strong

Contract Quality 11.8 / 21

Developer Ergonomics 12.1 / 17

Access Clarity 14.3 / 17

Operational Transparency 1.2 / 11

Contract Governance 1.9 / 10

Discoverability 6.4 / 9

Regulatory Posture 4.3 / 15

Agent readiness — 41/100 · 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

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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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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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
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

2 more unmet checks in the Agent Readiness table above.

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

Operational Transparency scores 10.5 — up to +11.6 composite points
Contract Quality scores 55.6 — up to +11.1 composite points
Contract Governance scores 18.2 — up to +9.8 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/infoway-real-time-market-data-api/apis.yml: open an issue on github.com/api-evangelist/infoway-real-time-market-data-api 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 5

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

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Agent Skills

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

AsyncAPI

measured — observed by APIs.io (published)

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.

Open Collections 3

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

REST Common API

OPEN COLLECTION

REST Crypto API

OPEN COLLECTION

REST Stock API

OPEN COLLECTION

MCP Servers 1

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

Infoway Real-time Market Data API MCP Server

Local (stdio) MCP server; 17 tools listed.

MCP SERVER

Agent Skills 2

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

infoway-financial-data

AGENT SKILL

infoway-quote-and-kline

AGENT SKILL

Infoway Real-time Market Data API pricing

Prices published by Infoway Real-time Market Data API, read 2026-10-28 from infoway.io/en#pricing.

Plan	Price
Free 7-Day Free Trial	FREE Includes: Rate Limits: 60 API calls /min (1/sec); WS Subscriptions: 10; Limited Symbols; Historical Data (Last
Basic	99 USDT/Month Includes: 120 API calls /min (2/sec); WS Subscriptions: 200; WS Connections Qty: 1; Historical Data (Last 1Y)
Premium	199 USDT/Month Includes: 600 API calls /min (10/sec); WS Subscriptions: 800; WS Connections Qty: 2; Historical Data (Last 2Y)
Professional	399 USDT/Month Includes: 1200 API calls /min (20/sec); WS Subscriptions: 5000; WS Connections Qty: 9; Historical Data (Last 3

Plan details, limits and sources →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Infoway Real Time Market Data Api Plans Pricing

4 plans

PLANS

Infoway Real Time Market Data Api Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Infoway Real Time Market Data Api Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Infoway Real-time Market Data API

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Infoway Real Time Market Data Api Finops

FINOPS

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

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Infoway Real-time Market Data API API Rules

43 rules · 41 errors 1 warnings 1 info

SPECTRAL

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.

Infoway Real Time Market Data Api Openapi Overlay

15 actions · documentation · infoway-real-time-market-data-api-openapi.yml

DERIVED

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

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 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

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: saas
  license_evidence:
    not_product:
    - infoway-api/infoway-mcp-server
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://infoway.io/favicon.png
created: '2026-08-08'
modified: '2026-10-06'
specificationVersion: '0.23'
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-03
tags:
- stock-api
- forex-api
- crypto-api
- commodities-api
- futures-api
- Market Data
- Real-Time Data
- WebSocket
- Financial Data
- Fintech
- Historical Data
- Real-Time
tags_raw:
- stock-api
- forex-api
- crypto-api
- commodities-api
- futures-api
- market-data
- real-time-data
- websocket
- financial-data
- fintech
- historical-data
- Real-Time
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:
  - Cryptocurrency
  tags_raw:
  - 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:
  - Stocks
  tags_raw:
  - 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: Plans
  url: plans/infoway-real-time-market-data-api-plans-pricing.yml
- url: https://blog.infoway.io/feed/
  type: BlogRSS
- type: Website
  url: https://www.infoway.io/
- 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

Infoway Real-time Market Data API — frequently asked questions

Does Infoway Real-time Market Data API have an API?

Yes. APIs.io lists 5 APIs from Infoway Real-time Market Data API, including Infoway WebSocket Streaming API, Infoway Financial Data MCP Server and Infoway Real-time Market Data API Common API, and 2 more.

Is there an OpenAPI specification for the Infoway Real-time Market Data API?

Yes. APIs.io indexes 3 OpenAPI specifications for Infoway Real-time Market Data API, each linked for download from this page.

How do I authenticate with the Infoway Real-time Market Data API?

Infoway Real-time Market Data API uses bearer-token authentication (apiKey · 3 schemes). The details are profiled on APIs.io as Infoway Real Time Market Data Api Authentication.

How much does the Infoway Real-time Market Data API cost?

Infoway Real-time Market Data API publishes its prices; its Free 7-Day Free Trial plan is FREE as of 2026-10-28. APIs.io lists 4 pricing plans for Infoway Real-time Market Data API, with each plan's price, limits and inclusions under Pricing on this page.

Does Infoway Real-time Market Data API have an MCP server?

Yes. APIs.io lists 1 MCP server for Infoway Real-time Market Data API: Local (stdio) MCP server; 17 tools listed.

Is the Infoway Real-time Market Data API ready for AI agents?

Infoway Real-time Market Data API has a Kin Score of 57.3 out of 100 (strong) and an Agent Readiness score of 40.9 (agent-native), scored by API Evangelist on 2026-11-06.

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