StockData

StockData.org provides real-time, intraday, and historical stock, forex, and cryptocurrency data along with global financial news and sentiment analysis. The REST API delivers market data for US-listed stocks including OHLCV data, splits, dividends, and entity-level news sentiment from 5,000+ sources in 30+ languages.

StockData publishes 3 API contracts indexed on the APIs.io network: Entities API, News API, and Stock Data API. Tagged areas include Finance, Financial Data, Stock Market, Market Data, and News.

The StockData catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

StockData’s developer surface includes authentication, code examples, developer portal, documentation, API reference, getting-started guide, support, and 29 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

57.6/100 strong ▬ flat Agent 29/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 3 Agent Skills

Finance Financial Data Stock Market Market Data News Sentiment Analysis

Kin Score

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

Composite quality — 57.6/100 · strong

Contract Quality 12.5 / 21

Developer Ergonomics 9.8 / 17

Access Clarity 13.2 / 17

Operational Transparency 3.5 / 11

Contract Governance 3.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 4.3 / 15

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 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 0 / 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 0 / 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs

4 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 59.0 — up to +10.3 composite points
Operational Transparency scores 31.6 — up to +8.9 composite points
Developer Ergonomics scores 57.7 — up to +8.5 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/stockdata/apis.yml: open an issue on github.com/api-evangelist/stockdata 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
News and Media	long-tail	2.5 (thin)	-	-

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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

StockData Entities API

Entity search and metadata

StockData News API

Global financial news with sentiment analysis

StockData Stock Data API

Real-time and historical stock market price data

Postman Collections 3

Ready-to-run Postman collections for exercising this provider's APIs.

StockData Entities API

POSTMAN

StockData Entities News API

POSTMAN

StockData Entities Stock Data API

POSTMAN

Open Collections 4

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

StockData Entities API

OPEN COLLECTION

StockData Entities News API

OPEN COLLECTION

StockData Entities Stock Data API

OPEN COLLECTION

StockData API

OPEN COLLECTION

Agent Skills 3

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

Discover entities and build symbol filters

AGENT SKILL

Monitor financial news and sentiment for a watchlist

AGENT SKILL

Get quotes and price history for US-listed stocks

AGENT SKILL

StockData API pricing

Prices published by StockData, read 2026-10-28 from www.stockdata.org/pricing.

Plan	Price
Free	$0.00/mo Includes: 100 requests daily; 3 symbols / stock price request; 1 symbol / intraday request; 2 articles / news
Basic	$29.00/mo Includes: 2,500 requests daily; 10 symbols / stock price request; 1 year of intraday and EOD data
Standard	$49.00/mo Includes: 10,000 requests daily; 25 symbols / stock price request; 8+ years of data
Pro	$99.00/mo Includes: 25,000 requests daily; 100 symbols / stock price request
Pro 50K	$199.00/mo Includes: 50,000 requests daily
Basic (annual)	$24.00/mo if billed annually
Standard (annual)	$41.00/mo if billed annually
Pro (annual)	$83.00/mo if billed annually

All 10 plans, limits and sources →

Rate limits

Free daily quota: 100 requests per day
Basic daily quota: 2500 requests per day
Standard daily quota: 10000 requests per day

All 6 limits →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Stockdata Plans Pricing

10 plans

PLANS

Stockdata Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Stockdata Rate Limits

6 limits

RATE LIMITS

Service Levels 1

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

StockData

SLA

FinOps 1

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

Stockdata Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Stockdata Context

39 classes · 0 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

StockData — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

StockData API Rules

8 rules · 3 errors 3 warnings 2 info

SPECTRAL

OpenAPI Overlays 3

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.

Stockdata Entities Api Overlay

3 actions · documentation · stockdata-entities-api-openapi.yml

DERIVED

Stockdata News Api Overlay

3 actions · documentation · stockdata-news-api-openapi.yml

DERIVED

Stockdata Stock Data Api Overlay

3 actions · documentation · stockdata-stock-data-api-openapi.yml

DERIVED

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

StockData News Article

12 properties

JSON SCHEMA

StockData Quote

16 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Stockdata Quote Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Stockdata Get Financial News Example

2 fields

EXAMPLE

Stockdata Get Stock Quote Example

2 fields

EXAMPLE

Security Posture 2

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

Stockdata Authentication

apiKey · 1 scheme

SECURITY

Stockdata Domain Security

TLSv1.3 · DNSSEC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Stockdata Agentic Access

16 operations

16 operations · 0 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Signup

Signup

Login

Documentation 4

Reference material describing how the API behaves

JSONSchema

JSONSchema

Documentation

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Conformance

Lifecycle

DataModel

Vocabulary

SpectralRules

JSONStructure

JSONLDContext

Scroll for all 9

Build 4

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

Examples

Examples

Examples

Examples

PostmanCollection

PostmanCollection

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

FinOps

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: stockdata
name: StockData
description: StockData.org provides real-time, intraday, and historical stock, forex, and cryptocurrency data along with global
  financial news and sentiment analysis. The REST API delivers market data for US-listed stocks including OHLCV data, splits,
  dividends, and entity-level news sentiment from 5,000+ sources in 30+ languages.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stockdata.png
tags:
- Finance
- Financial Data
- Stock Market
- Market Data
- News
- Sentiment Analysis
url: https://raw.githubusercontent.com/api-evangelist/stockdata/refs/heads/main/apis.yml
created: '2025-02-24'
modified: '2026-07-22'
specificationVersion: '0.23'
apis:
- aid: stockdata:stockdata-entities-api
  name: StockData Entities API
  description: Entity search and metadata
  humanURL: https://www.stockdata.org/
  baseURL: https://api.stockdata.org/v1
  tags:
  - Entities
  properties:
  - type: OpenAPI
    url: openapi/stockdata-entities-api-openapi.yml
  - type: Overlay
    url: overlays/stockdata-entities-api-overlay.yaml
  - type: Documentation
    url: https://www.stockdata.org/documentation
  - type: APIReference
    url: https://www.stockdata.org/documentation#stock-metadata
  - type: Website
    url: https://www.stockdata.org/
- aid: stockdata:stockdata-news-api
  name: StockData News API
  description: Global financial news with sentiment analysis
  humanURL: https://www.stockdata.org/
  baseURL: https://api.stockdata.org/v1
  tags:
  - News
  properties:
  - type: OpenAPI
    url: openapi/stockdata-news-api-openapi.yml
  - type: Overlay
    url: overlays/stockdata-news-api-overlay.yaml
  - type: Documentation
    url: https://www.stockdata.org/documentation
  - type: APIReference
    url: https://www.stockdata.org/documentation#news-feeds
  - type: Website
    url: https://www.stockdata.org/
- aid: stockdata:stockdata-stock-data-api
  name: StockData Stock Data API
  description: Real-time and historical stock market price data
  humanURL: https://www.stockdata.org/
  baseURL: https://api.stockdata.org/v1
  tags:
  - Stock Data
  properties:
  - type: OpenAPI
    url: openapi/stockdata-stock-data-api-openapi.yml
  - type: Overlay
    url: overlays/stockdata-stock-data-api-overlay.yaml
  - type: Documentation
    url: https://www.stockdata.org/documentation
  - type: APIReference
    url: https://www.stockdata.org/documentation#stock-data
  - type: Website
    url: https://www.stockdata.org/
common:
- type: FinOps
  url: finops/stockdata-finops.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/stockdata/overview
- type: AgenticAccess
  url: agentic-access/stockdata-agentic-access.yml
- type: DomainSecurity
  url: security/stockdata-domain-security.yml
- type: Authentication
  url: authentication/stockdata-authentication.yml
- type: X-MCPServerCandidate
  url: mcp/stockdata-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/stockdata-llms.txt
- type: Conventions
  url: conventions/stockdata-conventions.yml
- type: ErrorCatalog
  url: errors/stockdata-problem-types.yml
- type: Conformance
  url: conformance/stockdata-conformance.yml
- type: Lifecycle
  url: lifecycle/stockdata-lifecycle.yml
- type: DataModel
  url: data-model/stockdata-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Vocabulary
  url: vocabulary/stockdata-vocabulary.yml
- type: RateLimits
  url: rate-limits/stockdata-rate-limits.yml
- type: Plans
  url: plans/stockdata-plans-pricing.yml
- type: SpectralRules
  url: rules/stockdata-rules.yml
- type: JSONSchema
  url: json-schema/stockdata-quote-schema.json
- type: JSONSchema
  url: json-schema/stockdata-news-article-schema.json
- type: JSONStructure
  url: json-structure/stockdata-quote-structure.json
- type: JSONLDContext
  url: json-ld/stockdata-context.jsonld
- type: Examples
  url: examples/stockdata-get-stock-quote-example.json
- type: Examples
  url: examples/stockdata-get-financial-news-example.json
- type: PostmanCollection
  url: collections/stockdata.postman_collection.json
- type: LinkedIn
  url: https://www.linkedin.com/company/stockdata-org
- type: Portal
  url: https://www.stockdata.org/
- type: Documentation
  url: https://www.stockdata.org/documentation
- type: APIReference
  url: https://www.stockdata.org/documentation
- type: GettingStarted
  url: https://www.stockdata.org/documentation#introduction
- type: Support
  url: https://www.stockdata.org/contact
- type: Signup
  url: https://www.stockdata.org/register
- type: Login
  url: https://www.stockdata.org/login
- type: TermsOfService
  url: https://www.stockdata.org/tos
- type: PrivacyPolicy
  url: https://www.stockdata.org/privacy
- type: Website
  url: https://www.stockdata.org/
- type: Pricing
  url: https://www.stockdata.org/pricing
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

StockData API — frequently asked questions

Does StockData have an API?

Yes. APIs.io lists 3 APIs from StockData, including StockData Entities API, StockData News API and StockData Stock Data API.

Is there an OpenAPI specification for the StockData API?

Yes. APIs.io indexes 3 OpenAPI specifications for StockData, each linked for download from this page.

How do I authenticate with the StockData API?

StockData uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Stockdata Authentication.

How much does the StockData API cost?

StockData publishes its prices; its Free plan is $0.00/mo as of 2026-10-28. APIs.io lists 10 pricing plans for StockData, with each plan's price, limits and inclusions under Pricing on this page.

Is the StockData API ready for AI agents?

StockData has a Kin Score of 57.6 out of 100 (strong) and an Agent Readiness score of 29.3 (agent-ready), scored by API Evangelist on 2026-11-06.

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