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 The entry below is preserved as historical reference for migration patterns; endpoints are no longer reachable.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.

33.0/100 thin ▬ flat Agent 16/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessPaid
1 APIs
FintechMarket DataStocksReferenceSunsetHistorical

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 33.0/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 7.0 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 9.9 / 13
Governance 0.0 / 12
Discoverability 8.7 / 10
Agent readiness — 16/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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 4 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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.

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.

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

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 4

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Other 1

Properties that don't map to a standard resource type

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: '0.19'
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