quantsonar-com

QuantSonar provides a hosted China stock data API for A-shares, ETFs and financials, available through a Python SDK, MCP server and REST for research and AI agents. The service delivers real-time and historical market data, supports integration with AI agents, and offers comprehensive documentation, pricing details, and support channels for developers and analysts.

quantsonar-com publishes 3 API contracts indexed on the APIs.io network: 分红送股 API, ETF API, and Health API. Tagged areas include Company, Finance, Data, API, and China.

The quantsonar-com catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

quantsonar-com’s developer surface includes changelog, authentication, documentation, API reference, getting-started guide, support, pricing, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

60.7/100 strong Agent 32/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 MCP Servers

Company Finance DataAPIChinaStock-Market

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 60.7/100 · strong

Contract Quality 10.3 / 21

Developer Ergonomics 8.9 / 17

Access Clarity 12.4 / 17

Operational Transparency 5.5 / 11

Contract Governance 8.1 / 10

Discoverability 5.2 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 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 Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 0 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
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)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

9 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 48.3 — up to +12.9 composite points
Developer Ergonomics scores 52.4 — up to +9.5 composite points
Operational Transparency scores 49.5 — up to +6.6 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/quantsonar-com/apis.yml: open an issue on github.com/api-evangelist/quantsonar-com 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 →

APIs 3

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

quantsonar-com 分红送股 API

The 分红送股 API from quantsonar-com — 38 operation(s) for 分红送股.

quantsonar-com ETF API

The ETF API from quantsonar-com — 7 operation(s) for etf.

quantsonar-com Health API

The Health API from quantsonar-com — 1 operation(s) for health.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

quantsonar-com MCP Server

Remote MCP server at quantsonar.com requiring an API key.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Quantsonar Com Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Quantsonar Com Rate Limits

4 limits

RATE LIMITS

Semantic Vocabularies 1

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

Quantsonar Com Context

9 classes · 17 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

quantsonar-com API Rules

14 rules · 10 errors 3 warnings 1 info

SPECTRAL

Security Posture 2

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

Quantsonar Com Authentication

1 scheme

SECURITY

Quantsonar Com Domain Security

TLSv1.3

SECURITY

Agentic Access 1

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

Quantsonar Com Agentic Access

46 operations

46 operations · 0 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

Lifecycle

ErrorCatalog

Conformance

Scroll for all 8

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

ChangeLog

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Image

Image

Source (apis.yml)

aid: quantsonar-com
name: quantsonar-com
description: QuantSonar provides a hosted China stock data API for A-shares, ETFs and financials, available through a Python
  SDK, MCP server and REST for research and AI agents. The service delivers real-time and historical market data, supports
  integration with AI agents, and offers comprehensive documentation, pricing details, and support channels for developers
  and analysts.
url: https://artifacts.apis.io/quantsonar-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- Company
- Finance
- Data
- API
- China
- Stock-Market
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/quantsonar-com-agentic-access.yml
- type: RateLimits
  url: rate-limits/quantsonar-com-rate-limits.yml
- type: Plans
  url: plans/quantsonar-com-plans-pricing.yml
- type: Spectral
  url: rules/quantsonar-com-rules.yml
- type: JSONLD
  url: json-ld/quantsonar-com-context.jsonld
- type: Vocabulary
  url: vocabulary/quantsonar-com-vocabulary.yml
- type: DataModel
  url: data-model/quantsonar-com-data-model.yml
- type: ChangeLog
  url: changelog/quantsonar-com-changelog.yml
- type: Conventions
  url: conventions/quantsonar-com-conventions.yml
- type: Authentication
  url: authentication/quantsonar-com-authentication.yml
- type: Lifecycle
  url: lifecycle/quantsonar-com-lifecycle.yml
- type: ErrorCatalog
  url: errors/quantsonar-com-problem-types.yml
- type: Conformance
  url: conformance/quantsonar-com-conformance.yml
- type: LLMsTxt
  url: llms/quantsonar-com-llms.txt
- type: MCPServer
  url: mcp/quantsonar-com-mcp.yml
- type: Hosts
  url: hosts/quantsonar-com-hosts.yml
- type: SDKs
  url: packages/quantsonar-com-packages.yml
- type: Packages
  url: packages/quantsonar-com-packages.yml
- type: ChangeLog
  url: https://quantsonar.com/changelog
- type: DomainSecurity
  url: security/quantsonar-com-domain-security.yml
- type: Website
  url: https://quantsonar.com/
- type: Documentation
  url: https://quantsonar.com/en/docs
- type: APIReference
  url: https://quantsonar.com/openapi.json
- type: GettingStarted
  url: https://quantsonar.com/en/docs
- type: Support
  url: mailto:support@quantsonar.com
- type: Pricing
  url: https://quantsonar.com/en/pricing
- type: SignUp
  url: https://quantsonar.com/en/register
- type: Login
  url: https://quantsonar.com/en/login
- type: TermsOfService
  url: https://quantsonar.com/en/terms
- type: PrivacyPolicy
  url: https://quantsonar.com/en/privacy
- type: GitHubOrganization
  url: https://github.com/QuantSonar
- type: Image
  url: https://quantsonar.com/favicon.svg
apis:
- aid: quantsonar-com:quantsonar-com-default-api
  name: quantsonar-com 分红送股 API
  description: The 分红送股 API from quantsonar-com — 38 operation(s) for 分红送股.
  humanURL: https://quantsonar.com/en/docs
  baseURL: https://quantsonar.com
  tags:
  - 分红送股
  properties:
  - type: OpenAPI
    url: openapi/quantsonar-com-default-api-openapi.yml
- aid: quantsonar-com:quantsonar-com-etf-api
  name: quantsonar-com ETF API
  description: The ETF API from quantsonar-com — 7 operation(s) for etf.
  humanURL: https://quantsonar.com/en/docs
  baseURL: https://quantsonar.com
  tags:
  - ETF
  properties:
  - type: OpenAPI
    url: openapi/quantsonar-com-etf-api-openapi.yml
- aid: quantsonar-com:quantsonar-com-health-api
  name: quantsonar-com Health API
  description: The Health API from quantsonar-com — 1 operation(s) for health.
  humanURL: https://quantsonar.com/en/docs
  baseURL: https://quantsonar.com
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/quantsonar-com-health-api-openapi.yml
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 26
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

quantsonar-com API — frequently asked questions

Does quantsonar-com have an API?

Yes. APIs.io lists 3 APIs from quantsonar-com, including quantsonar-com 分红送股 API, quantsonar-com ETF API and quantsonar-com Health API.

Is there an OpenAPI specification for the quantsonar-com API?

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

How do I authenticate with the quantsonar-com API?

quantsonar-com uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Quantsonar Com Authentication.

How much does the quantsonar-com API cost?

APIs.io lists 4 pricing plans for quantsonar-com, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does quantsonar-com have an MCP server?

Yes. APIs.io lists 1 MCP server for quantsonar-com: Remote MCP server at quantsonar.com requiring an API key.

Is the quantsonar-com API ready for AI agents?

quantsonar-com has a Kin Score of 60.7 out of 100 (strong) and an Agent Readiness score of 31.5 (agent-ready), scored by API Evangelist on 2026-10-31.

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