IEX Cloud website screenshot

IEX Cloud

IEX Cloud was a cloud-based financial data platform from IEX Group offering market data, fundamentals, news, options, and reference APIs at https://cloud.iexapis.com/v1. The service was sunset on August 31, 2024 by IEX Group. The entry below is preserved as historical reference for migration patterns; endpoints are no longer reachable.

IEX Cloud publishes 1 API on the APIs.io network. Tagged areas include Fintech, Market Data, Stocks, Reference, and Sunset.

IEX Cloud’s developer surface includes developer portal, documentation, changelog, authentication, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
24.1/100 emerging ▬ flat Agent 5/100 human only Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0
AccessPaid
1 APIs
FintechMarket DataStocksReferenceSunsetHistorical

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0
Composite quality — 24.1/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 6.5 / 17
Access Clarity 2.7 / 17
Operational Transparency 5.5 / 11
Contract Governance 0.0 / 10
Discoverability 6.5 / 9
Regulatory Posture 4.5 / 15
Agent readiness — 5/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 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 Surface 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/. This rating is computed from github.com/api-evangelist/iex-cloud: 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 1

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

IEX Cloud Core Data API (sunset)

Real-time and historical US equity quotes, intraday and historical prices, OHLCV charts, news, dividends, splits, options chains, fundamentals, and corporate actions. Pricing wa...

Pricing Plans 1

Published pricing tiers and plan structures.

Iex Cloud Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Iex Cloud Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Iex Cloud Finops

FINOPS

Security Posture 2

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

Iex Cloud Authentication

apiKey · 2 schemes

SECURITY

Iex Cloud Domain Security

TLSv1.3

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal
Portal

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 LLMsTxt
LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 4

Status, limits, changes, and where to get help

StatusPage
StatusPage
 Deprecation
Deprecation
 ChangeLog
ChangeLog
 RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 1

The organization behind the API

LinkedIn
LinkedIn

Other 1

Properties that don't map to a standard resource type

Sunset Notice
Sunset Notice

Source (apis.yml)

apis.yml Raw ↑ 
aid: iex-cloud
url: https://raw.githubusercontent.com/api-evangelist/iex-cloud/refs/heads/main/apis.yml
name: IEX Cloud
kind: company
x-status: sunset
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/iex-cloud.png
tags:
- Fintech
- Market Data
- Stocks
- Reference
- Sunset
- Historical
created: '2026-05-08'
modified: '2026-07-22'
specificationVersion: '0.23'
description: IEX Cloud was a cloud-based financial data platform from IEX Group offering market data, fundamentals, news,
  options, and reference APIs at https://cloud.iexapis.com/v1. The service was sunset on August 31, 2024 by IEX Group. The
  entry below is preserved as historical reference for migration patterns; endpoints are no longer reachable.
notes: IEX Cloud sunset on 2024-08-31. APIs are no longer reachable. Migrate to alternatives such as Polygon.io, Tiingo, Alpha
  Vantage, or Finnhub. As of 2026-07-22 the iexcloud.io domain has lapsed out of IEX Group's control (www.iexcloud.io serves
  a Namecheap parking page) - iexcloud.io links below are historical citations, not live provider content. The github.com/iexcloud
  org (docs + SDKs) and status.iexapis.com remain live.
apis:
- aid: iex-cloud:core-data-api
  name: IEX Cloud Core Data API (sunset)
  tags:
  - Stocks
  - Market Data
  - Sunset
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://cloud.iexapis.com/v1
  humanURL: https://iexcloud.io/docs/api
  description: 'Real-time and historical US equity quotes, intraday and historical prices, OHLCV charts, news, dividends,
    splits, options chains, fundamentals, and corporate actions. Pricing was message-based: each endpoint cost a number of
    "credits" against a monthly allowance. SUNSET August 31, 2024.'
  properties:
  - type: Documentation
    url: https://iexcloud.io/docs/api
  - type: Sunset Notice
    url: https://iexcloud.io/community/blog/iex-cloud-end-of-life-announcement
  x-features:
  - Real-time and historical quotes (sunset)
  - Fundamentals and corporate actions (sunset)
  - News, options, splits, dividends (sunset)
  - Message-based credit pricing (sunset)
  x-use-cases:
  - Historical reference only
  - Migration patterns to successor providers
common:
- type: DomainSecurity
  url: security/iex-cloud-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/iexcloud
- type: LinkedIn
  url: https://www.linkedin.com/showcase/iex-cloud
- type: Portal
  url: https://www.iexcloud.io/
- type: Sunset Notice
  url: https://iexcloud.io/community/blog/iex-cloud-end-of-life-announcement
- type: Documentation
  url: https://web.archive.org/web/20241003164023/https://iexcloud.io/docs/api/
- type: Lifecycle
  url: lifecycle/iex-cloud-lifecycle.yml
- type: StatusPage
  url: https://status.iexapis.com/
- type: Deprecation
  url: https://web.archive.org/web/20240611120824/https://iexcloud.io/docs/api-basics/deprecation
- type: ChangeLog
  url: changelog/iex-cloud-changelog.yml
- type: Authentication
  url: authentication/iex-cloud-authentication.yml
- type: Packages
  url: packages/iex-cloud-packages.yml
- type: SDKs
  url: packages/iex-cloud-packages.yml
- type: WellKnown
  url: well-known/iex-cloud-well-known.yml
- type: LLMsTxt
  url: llms/iex-cloud-llms.txt
- type: Plans
  url: plans/iex-cloud-plans-pricing.yml
- type: RateLimits
  url: rate-limits/iex-cloud-rate-limits.yml
- type: FinOps
  url: finops/iex-cloud-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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