TradeKing

TradeKing was a US online brokerage offering commission-based self-directed trading of stocks and options, backed by Battery Ventures. It pioneered one of the first public brokerage APIs, letting developers manage accounts, place equity and options orders, stream real-time market quotes, and manage watchlists over OAuth 1.0. TradeKing was acquired by Ally Financial in 2016 and rebranded as Ally Invest; its API surface lives on as the Ally Invest API (profiled separately as ally-invest in this network). tradeking.com now redirects to ally.com/invest and the historical API hosts no longer resolve. This profile is maintained as a historical record.

TradeKing is profiled on the APIs.io network. Tagged areas include Company, Brokerage, Trading, Investing, and Stocks.

🌐 Visit website 📡 Source on GitHub

8.3/100 minimal ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.5

0 APIs

CompanyBrokerageTradingInvestingStocksOptionsAcquired

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.5

Composite quality — 8.3/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

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/tradeking: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: tradeking
name: TradeKing
description: TradeKing was a US online brokerage offering commission-based self-directed trading of stocks and options, backed
  by Battery Ventures. It pioneered one of the first public brokerage APIs, letting developers manage accounts, place equity
  and options orders, stream real-time market quotes, and manage watchlists over OAuth 1.0. TradeKing was acquired by Ally
  Financial in 2016 and rebranded as Ally Invest; its API surface lives on as the Ally Invest API (profiled separately as
  ally-invest in this network). tradeking.com now redirects to ally.com/invest and the historical API hosts no longer resolve.
  This profile is maintained as a historical record.
url: https://raw.githubusercontent.com/api-evangelist/tradeking/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/tradeking.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: profile
x-tier-reason: acquired-defunct
x-status: acquired
x-acquired-by: ally-financial
x-successor: ally-invest
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Brokerage
- Trading
- Investing
- Stocks
- Options
- Acquired
apis: []
common:
- type: DomainSecurity
  url: security/tradeking-domain-security.yml
- name: Website (redirects to Ally Invest)
  type: Website
  url: https://www.tradeking.com
- name: TradeKing GitHub Organization
  type: GitHubOrganization
  url: https://github.com/tradeking
- name: Community Packages
  type: Packages
  url: packages/tradeking-packages.yml
- name: Well-Known Probe Index
  type: WellKnown
  url: well-known/tradeking-well-known.yml
- name: LLMs.txt
  type: LLMsTxt
  url: llms/tradeking-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1