# TD Ameritrade

**Canonical:** https://apis.io/providers/td-ameritrade/  
**Website:** https://developer.tdameritrade.com/  
**APIs profiled:** 15

TD Ameritrade was a US retail brokerage that provided REST APIs for trading equities and options, accessing streaming market data, managing brokerage accounts, and retrieving historical and real-time market data. Following the Charles Schwab acquisition, the TD Ameritrade API was shut down on May 10, 2024. Schwab has ported much of the original functionality into the Schwab Trader API.

## Kin Score — 38.0 / 100 (thin)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 38.0).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 61.2 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 26.2 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Securities & Market Data**: 41.7 (matched via tags).

## Agent readiness — 29.1 (agent-aware)

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

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (15)

- **TD Ameritrade Market Data API** — Provides REST endpoints for accessing real-time and historical market data. Includes current quotes for single and multiple symbols, historical price history for equities and ET...
- **TD Ameritrade Instruments API** — Provides REST endpoints for searching and retrieving instrument details by symbol or CUSIP. Supports searching by symbol or description and retrieving fundamental data including...
- **TD Ameritrade Authentication API** — Implements OAuth 2.0 token-based authentication as described in RFC6749 section 1.3.1. Applications registered on the TD Ameritrade Developer Portal receive a Consumer Key (clie...
- **TD Ameritrade Streaming Market Data API** — Provides a WebSocket-based streaming API that delivers up-to-the-second market data including real-time Level 1 and Level 2 quotes, time and sales data for equities, options, an...
- **TD Ameritrade Accounts and Trading API** — The Accounts and Trading API from TD Ameritrade — 7 operation(s) for accounts and trading.
- **TD Ameritrade Authentication API** — The Authentication API from TD Ameritrade — 1 operation(s) for authentication.
- **TD Ameritrade Instruments API** — The Instruments API from TD Ameritrade — 2 operation(s) for instruments.
- **TD Ameritrade Market Hours API** — The Market Hours API from TD Ameritrade — 2 operation(s) for market hours.
- **TD Ameritrade Movers API** — The Movers API from TD Ameritrade — 1 operation(s) for movers.
- **TD Ameritrade Option Chains API** — The Option Chains API from TD Ameritrade — 1 operation(s) for option chains.
- **TD Ameritrade Price History API** — The Price History API from TD Ameritrade — 1 operation(s) for price history.
- **TD Ameritrade Quotes API** — The Quotes API from TD Ameritrade — 2 operation(s) for quotes.
- **TD Ameritrade Transaction History API** — The Transaction History API from TD Ameritrade — 2 operation(s) for transaction history.
- **TD Ameritrade User Info & Preferences API** — The User Info & Preferences API from TD Ameritrade — 3 operation(s) for user info & preferences.
- **TD Ameritrade Watchlist API** — The Watchlist API from TD Ameritrade — 3 operation(s) for watchlist.

## Agentic access (1)

- **Td Ameritrade Agentic Access** — 36 operations · 12 acting

## Security (2)

- **Td Ameritrade Authentication** — apiKey · 1 scheme
- **Td Ameritrade Domain Security** — DMARC

## Plans (1)

- **Plans**

## Tags

Brokerage, Trading, Finance, Equities, Options, Market Data, Streaming

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