Stooq website screenshot

Stooq

Stooq is a Poland-based financial data platform offering free access to historical and current market data for global equities, indices, currencies, cryptocurrencies, commodities, bonds, and economic indicators. Data is delivered as CSV via a simple REST-style URL interface at https://stooq.com/q/d/l/ using query parameters for ticker symbol, date range, and interval. As of early 2026 an API key (obtained via CAPTCHA on the site) is required. A known daily request quota applies; exceeding it returns an "Exceeded the daily hits limit" message. Bulk point-in-time snapshots of the full database (12,000+ securities) are also available as ZIP-compressed CSVs from https://stooq.com/db/h/.

Stooq publishes 1 API on the APIs.io network: Q API. Tagged areas include Fintech, Market Data, Stocks, Indices, and Currencies.

The Stooq catalog on APIs.io includes 1 Spectral governance ruleset.

Stooq’s developer surface includes developer portal, documentation, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.6/100 thin ▬ flat Agent 28/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFree
1 APIs
FintechMarket DataStocksIndicesCurrenciesCryptoCommoditiesHistorical DataFree

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 39.6/100 · thin
Contract Quality 17.3 / 25
Developer Ergonomics 3.5 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 2.7 / 13
Governance 7.0 / 12
Discoverability 6.9 / 10
Agent readiness — 28/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 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
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/stooq: 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.

Stooq Q API

The Q API from Stooq — 1 operation(s) for q.

Pricing Plans 1

Published pricing tiers and plan structures.

Stooq Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Stooq Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Stooq Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Stooq API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 2

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

Stooq OHLCV Record

6 properties

JSON SCHEMA

Stooq Historical Data API Query Parameters

5 properties

JSON SCHEMA

Examples 3

Example request and response payloads for these APIs.

Stooq Apple Daily Ohlcv Example

4 fields

EXAMPLE

Stooq Bitcoin Weekly Ohlcv Example

4 fields

EXAMPLE

Stooq Quota Exceeded Example

4 fields

EXAMPLE

Security Posture 1

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

Stooq Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Stooq Agentic Access

1 operation

1 operations · 0 acting

AGENTIC

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 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Other 1

Properties that don't map to a standard resource type

BulkData
BulkData

Source (apis.yml)

apis.yml Raw ↑ 
aid: stooq
url: https://raw.githubusercontent.com/api-evangelist/stooq/refs/heads/main/apis.yml
name: Stooq
kind: company
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stooq.png
tags:
- Fintech
- Market Data
- Stocks
- Indices
- Currencies
- Crypto
- Commodities
- Historical Data
- Free
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
description: Stooq is a Poland-based financial data platform offering free access to historical and current market data for
  global equities, indices, currencies, cryptocurrencies, commodities, bonds, and economic indicators. Data is delivered as
  CSV via a simple REST-style URL interface at https://stooq.com/q/d/l/ using query parameters for ticker symbol, date range,
  and interval. As of early 2026 an API key (obtained via CAPTCHA on the site) is required. A known daily request quota applies;
  exceeding it returns an "Exceeded the daily hits limit" message. Bulk point-in-time snapshots of the full database (12,000+
  securities) are also available as ZIP-compressed CSVs from https://stooq.com/db/h/.
apis:
- aid: stooq:stooq-q-api
  name: Stooq Q API
  description: The Q API from Stooq — 1 operation(s) for q.
  humanURL: https://stooq.com/db/h/
  baseURL: https://stooq.com/q/d/l/
  tags:
  - Q
  properties:
  - type: OpenAPI
    url: openapi/stooq-q-api-openapi.yml
  - type: Documentation
    url: https://stooq.com/db/h/
  - type: JSONSchema
    url: json-schema/stooq-ohlcv-record.json
  - type: JSONSchema
    url: json-schema/stooq-query-parameters.json
  - type: Examples
    url: examples/stooq-apple-daily-ohlcv-example.json
  - type: Examples
    url: examples/stooq-bitcoin-weekly-ohlcv-example.json
  - type: Examples
    url: examples/stooq-quota-exceeded-example.json
  - type: Vocabulary
    url: vocabulary/stooq-vocabulary.json
  - type: JSONLD
    url: json-ld/stooq-jsonld.json
  - type: Plans
    url: plans/stooq-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/stooq-rate-limits.yml
  - type: FinOps
    url: finops/stooq-finops.yml
common:
- type: AgenticAccess
  url: agentic-access/stooq-agentic-access.yml
- type: DomainSecurity
  url: security/stooq-domain-security.yml
- type: Portal
  url: https://stooq.com/
- type: Documentation
  url: https://stooq.com/db/h/
- type: BulkData
  url: https://stooq.com/db/h/
- type: Plans
  url: plans/stooq-plans-pricing.yml
- type: RateLimits
  url: rate-limits/stooq-rate-limits.yml
- type: FinOps
  url: finops/stooq-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com