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 Currency.

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

33.2/100 thin ▬ flat Agent 26/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFree

1 APIs

Fintech Market Data Stocks Indices Currency Crypto Commodities Historical Data Free

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 33.2/100 · thin

Contract Quality 12.9 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 4.9 / 17

Operational Transparency 2.3 / 11

Contract Governance 1.0 / 10

Discoverability 5.8 / 9

Regulatory Posture 3.0 / 15

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 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 4 / 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/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.

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.

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.

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)

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
- Currency
- Crypto
- Commodities
- Historical Data
- Free
tags_raw:
- Fintech
- Market Data
- Stocks
- Indices
- Currencies
- Crypto
- Commodities
- Historical Data
- Free
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
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

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Stooq

Kin Score

APIs 1

Stooq Q API

Open Collections 2

API Collection

Stooq Historical Data Q API

Pricing Plans 1

Stooq Plans Pricing

Rate Limits 1

Stooq Rate Limits

FinOps 1

Stooq Finops

Spectral Rules 1

Stooq API Rules