# TradeKing

**Canonical:** https://apis.io/providers/tradeking/  
**Website:** https://www.tradeking.com  
**APIs profiled:** 0

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.

## Kin Score — 2.6 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 2.6).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Securities & Market Data**: 10.0 (matched via weak_tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Tradeking Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Brokerage, Trading, Investing, Stocks, Options, Acquired

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/tradeking/). Scores are computed from the provider's own public artifacts under a published rubric.