# Tradier

**Canonical:** https://apis.io/providers/tradier/  
**Website:** https://tradier.com/  
**APIs profiled:** 4

Tradier is a brokerage platform offering REST and WebSocket APIs for trading US equities, options, and futures, plus market data and account-opening services. The Tradier Brokerage API exposes account, trading, market data, fundamentals, watchlist, and streaming endpoints under a single base URL.

## Kin Score — 61.7 / 100 (strong)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 61.7).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 61.0 |
| Governance | 28.0 |
| Contract Governance | 28.0 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 55.4 |
| Commercial Clarity | 47.4 |
| Access Clarity | 47.4 |

Regulatory layer — **Securities & Market Data**: 78.3 (matched via weak_tags).

## Agent readiness — 47.6 (agent-ready)

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

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (4)

- **Tradier Brokerage API** — The Tradier Brokerage API provides REST endpoints for placing equity, option, and multileg orders, retrieving account balances, positions, orders, and history, and accessing mar...
- **Tradier Streaming API** — The Tradier Streaming API delivers real-time market and account events over HTTP and WebSocket. Quote, trade, summary, timesale, and order events are streamed; client first crea...
- **Tradier MCP Server** — Tradier's official hosted MCP server (launched July 2026) connects AI assistants like ChatGPT, Claude, Gemini CLI, and Cursor directly to a Tradier brokerage account over Stream...
- **Tradier Brokerage API** — Tradier Brokerage API from Tradier — 21 path(s) described in OpenAPI.

## MCP servers (1)

- **Tradier MCP Server**

## Agentic access (1)

- **Tradier Agentic Access** — 28 operations · 9 acting

## Security (3)

- **Tradier Authentication** — http/oauth2 · 2 schemes
- **Tradier Domain Security** — TLSv1.3 · HSTS · DMARC
- **Tradier Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Tradier Plans Pricing**

## Tags

Fintech, Trading, Stocks, Options, Brokerage, Streaming

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