twmarketdata-com

TW Market Data (TWMD) provides comprehensive Taiwan stock market data APIs designed for AI agents and developers. It offers real‑time and historical data on equities, ETFs, indices, and financial metrics, sourced from official exchanges such as TWSE and TPEx. The platform includes free 30‑day trial access, detailed documentation, and tools for data integration, supporting quantitative analysis and automated workflows.

twmarketdata-com publishes 4 API contracts indexed on the APIs.io network, including Capital Flow API, Datasets API, Fundamentals API, and 1 more. Tagged areas include Company, Finance, Market Data, Taiwan, and API.

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

twmarketdata-com’s developer surface includes authentication, documentation, API reference, getting-started guide, pricing, engineering blog, support, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

59.8/100 strong Agent 50/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 MCP Servers 1 Agent Skills

Company Finance Market Data TaiwanAPI

Kin Score

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

Composite quality — 59.8/100 · strong

Contract Quality 13.4 / 21

Developer Ergonomics 10.8 / 17

Access Clarity 7.6 / 17

Operational Transparency 3.2 / 11

Contract Governance 8.1 / 10

Discoverability 5.5 / 9

Regulatory Posture 5.7 / 15

Agent readiness — 50/100 · 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 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 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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 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)
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
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's

3 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 44.7 — up to +11.1 composite points
Operational Transparency scores 28.9 — up to +9.2 composite points
Contract Quality scores 63.2 — up to +9.2 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/twmarketdata-com/apis.yml: open an issue on github.com/api-evangelist/twmarketdata-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 4

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

twmarketdata-com Capital Flow API

The Capital Flow API from twmarketdata-com — 1 operation(s) for capital flow.

twmarketdata-com Datasets API

The Datasets API from twmarketdata-com — 4 operation(s) for datasets.

twmarketdata-com Fundamentals API

The Fundamentals API from twmarketdata-com — 3 operation(s) for fundamentals.

twmarketdata-com Market Prices API

The Market Prices API from twmarketdata-com — 1 operation(s) for market prices.

MCP Servers 1

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

twmarketdata-com MCP Server

Remote MCP server at mcp.twmarketdata.com.

MCP SERVER

Agent Skills 1

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

twmarketdata-com-main

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Twmarketdata Com Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Twmarketdata Com Rate Limits

0 limits

RATE LIMITS

Semantic Vocabularies 1

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

Twmarketdata Com Context

11 classes · 53 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

twmarketdata-com API Rules

14 rules · 12 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

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

BalanceSheetRow

8 properties

JSON SCHEMA

DatasetResponseEnvelope

4 properties

JSON SCHEMA

IncomeStatementRow

9 properties

JSON SCHEMA

InstitutionalFlowRow

10 properties

JSON SCHEMA

MonthlyRevenueRow

7 properties

JSON SCHEMA

TwseDailyPriceRow

10 properties

JSON SCHEMA

Security Posture 2

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

Twmarketdata Com Authentication

1 scheme

SECURITY

Twmarketdata Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Twmarketdata Com Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Twmarketdata Com Agentic Access

9 operations

9 operations · 0 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Login

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Lifecycle

ErrorCatalog

Conformance

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Deprecation

Deprecation

StatusPage

StatusPage

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: twmarketdata-com
name: twmarketdata-com
description: TW Market Data (TWMD) provides comprehensive Taiwan stock market data APIs designed for AI agents and developers.
  It offers real‑time and historical data on equities, ETFs, indices, and financial metrics, sourced from official exchanges
  such as TWSE and TPEx. The platform includes free 30‑day trial access, detailed documentation, and tools for data integration,
  supporting quantitative analysis and automated workflows.
image: https://twmarketdata.com/brand/logo-mark.png
url: https://artifacts.apis.io/twmarketdata-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
- Market Data
- Taiwan
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/twmarketdata-com-agentic-access.yml
- type: Spectral
  url: rules/twmarketdata-com-rules.yml
- type: JSONLD
  url: json-ld/twmarketdata-com-context.jsonld
- type: Vocabulary
  url: vocabulary/twmarketdata-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/twmarketdata-com-data-model.yml
- type: Authentication
  url: authentication/twmarketdata-com-authentication.yml
- type: Deprecation
  url: lifecycle/twmarketdata-com-lifecycle.yml
- type: Lifecycle
  url: lifecycle/twmarketdata-com-lifecycle.yml
- type: ErrorCatalog
  url: errors/twmarketdata-com-problem-types.yml
- type: Conformance
  url: conformance/twmarketdata-com-conformance.yml
- type: LLMsTxt
  url: llms/twmarketdata-com-llms.txt
- type: AgentCard
  url: a2a/twmarketdata-com-a2a.yml
- type: MCPServer
  url: mcp/twmarketdata-com-mcp.yml
- type: WellKnown
  url: well-known/twmarketdata-com-well-known.yml
- type: Hosts
  url: hosts/twmarketdata-com-hosts.yml
- type: Vendors
  url: vendors/twmarketdata-com-vendors.yml
- type: Login
  url: https://twmarketdata.com/zh-TW/login
- type: GitHubOrganization
  url: https://github.com/twmarketdata
- type: DomainSecurity
  url: security/twmarketdata-com-domain-security.yml
- type: Website
  url: https://twmarketdata.com/
- type: DeveloperPortal
  url: https://twmarketdata.com/en/docs/introduction
- type: Documentation
  url: https://twmarketdata.com/en/docs/introduction
- type: APIReference
  url: https://twmarketdata.com/en/docs/data-access
- type: GettingStarted
  url: https://twmarketdata.com/en/docs/quick-start
- type: Pricing
  url: https://twmarketdata.com/en/pricing
- type: Blog
  url: https://twmarketdata.com/en/blog
- type: StatusPage
  url: https://twmarketdata.com/en/status
- type: TermsOfService
  url: https://twmarketdata.com/en/legal/terms
- type: PrivacyPolicy
  url: https://twmarketdata.com/en/legal/privacy-notice
- type: Support
  url: https://twmarketdata.com/en/faqs
apis:
- aid: twmarketdata-com:twmarketdata-com-capital-flow-api
  name: twmarketdata-com Capital Flow API
  description: The Capital Flow API from twmarketdata-com — 1 operation(s) for capital flow.
  humanURL: https://twmarketdata.com/en/docs/introduction
  baseURL: https://api.twmarketdata.com
  tags:
  - Capital Flow
  properties:
  - type: OpenAPI
    url: openapi/twmarketdata-com-capital-flow-api-openapi.yml
  - type: JSONSchema
    url: json-schema/twmarketdata-com-dataset-response-envelope-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-institutional-flow-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-twse-daily-price-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-income-statement-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-balance-sheet-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-monthly-revenue-row-schema.json
- aid: twmarketdata-com:twmarketdata-com-datasets-api
  name: twmarketdata-com Datasets API
  description: The Datasets API from twmarketdata-com — 4 operation(s) for datasets.
  humanURL: https://twmarketdata.com/en/docs/introduction
  baseURL: https://api.twmarketdata.com
  tags:
  - Datasets
  properties:
  - type: OpenAPI
    url: openapi/twmarketdata-com-datasets-api-openapi.yml
  - type: JSONSchema
    url: json-schema/twmarketdata-com-dataset-response-envelope-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-institutional-flow-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-twse-daily-price-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-income-statement-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-balance-sheet-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-monthly-revenue-row-schema.json
- aid: twmarketdata-com:twmarketdata-com-fundamentals-api
  name: twmarketdata-com Fundamentals API
  description: The Fundamentals API from twmarketdata-com — 3 operation(s) for fundamentals.
  humanURL: https://twmarketdata.com/en/docs/introduction
  baseURL: https://api.twmarketdata.com
  tags:
  - Fundamentals
  properties:
  - type: OpenAPI
    url: openapi/twmarketdata-com-fundamentals-api-openapi.yml
  - type: JSONSchema
    url: json-schema/twmarketdata-com-dataset-response-envelope-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-institutional-flow-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-twse-daily-price-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-income-statement-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-balance-sheet-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-monthly-revenue-row-schema.json
- aid: twmarketdata-com:twmarketdata-com-market-prices-api
  name: twmarketdata-com Market Prices API
  description: The Market Prices API from twmarketdata-com — 1 operation(s) for market prices.
  humanURL: https://twmarketdata.com/en/docs/introduction
  baseURL: https://api.twmarketdata.com
  tags:
  - Market Prices
  properties:
  - type: OpenAPI
    url: openapi/twmarketdata-com-market-prices-api-openapi.yml
  - type: JSONSchema
    url: json-schema/twmarketdata-com-dataset-response-envelope-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-institutional-flow-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-twse-daily-price-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-income-statement-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-balance-sheet-row-schema.json
  - type: JSONSchema
    url: json-schema/twmarketdata-com-monthly-revenue-row-schema.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 35
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

twmarketdata-com API — frequently asked questions

Does twmarketdata-com have an API?

Yes. APIs.io lists 4 APIs from twmarketdata-com, including twmarketdata-com Capital Flow API, twmarketdata-com Datasets API and twmarketdata-com Fundamentals API, and 1 more.

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

Yes. APIs.io indexes 4 OpenAPI specifications for twmarketdata-com, each linked for download from this page.

How do I authenticate with the twmarketdata-com API?

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

Does twmarketdata-com have an MCP server?

Yes. APIs.io lists 1 MCP server for twmarketdata-com: Remote MCP server at mcp.twmarketdata.com.

Is the twmarketdata-com API ready for AI agents?

twmarketdata-com has a Kin Score of 59.8 out of 100 (strong) and an Agent Readiness score of 49.5 (agent-ready), scored by API Evangelist on 2026-10-31.

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