TradeZero, the broker built for active self-directed traders, announced the launch of TradeZero Developer, an execution-first API that gives traders programmatic access to equity and options order execution, real-time account and position data, and end-to-end short locate workflows. 

TradeZero Developer is designed for traders who build their own infrastructure. Rather than replacing a trading interface, it enables traders to execute through TradeZero's order management and routing systems directly from their own code — connecting custom signals, models, and dashboards to live execution without leaving their workflow.

Execution Through Code, Not Around It

Orders submitted via TradeZero Developer follow the same order management, risk validation, and routing process as orders placed through TradeZero's platforms — with no separate execution path. The API supports market, limit, stop, and advanced order types for equities, and single-leg options order placement, modification, and cancellation.

The API provides real-time visibility into balances, positions, buying power, and open orders, helping ensure strategies act on accurate account state before and after every execution decision.

Short Locate Workflows, Fully Programmable

TradeZero Developer includes a dedicated Short Locate API, giving short sellers programmatic access to locate discovery, quoting, reservation, inventory management, and sell-back credit for unused locates — with full audit history. Locate workflows are a core capability of the API, not an add-on, reflecting TradeZero's existing infrastructure for active short-selling.

Built for Active Traders, No Additional Access Fee

TradeZero Developer does not charge an additional fee for API access. Traders can enable the add-on through the Client Portal, sign the API Trading Agreement, and generate credentials to begin building.

A Paper Trading Environment is available for testing, designed to reflect the live environment— including options strategies and locate workflows — before requesting live access. Default rate limits are set at 200 authenticated requests per minute per account.