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Changelog

Stay informed about updates to the Public API.

April 23, 2026

Short selling now available

You can now open and close short positions via the Public API. See the Placing your first short order example for an end-to-end walkthrough.

April 10, 2026

New API crypto fee tiers

Crypto trading fees on the API are now tiered based on monthly trading volume, with rates as low as 0.10% for the highest tier.

Monthly Crypto Trading Volume	Fee
$0K–$10K	0.60%
$10K–$50K	0.50%
$50K–$100K	0.40%
$100K–$1M	0.30%
$1M–$15M	0.20%
$15M–$100M	0.15%
$100M+	0.10%

March 26, 2026

Cancel and replace now available for equity orders

You can now cancel and replace active equity orders using the PUT request to the /userapigateway/trading/{accountId}/order endpoint. This extends the existing cancel and replace support, which was previously available for crypto quantity and options orders, to equity orders.

March 25, 2026

Bond trading now available

You can now trade corporate bonds and treasuries via the Public API. Bond trading is fully supported through the existing order placement endpoints. When placing an order, use a type of BOND for both corporate bonds and treasuries.

Options greeks added to option chain endpoint

Options greeks are now included in the response from the /userapigateway/marketdata/{accountId}/option-chain endpoint.

February 26, 2026

New endpoint: edit/replace active order

You can now make a PUT request to the `/userapigateway/trading/accountId/order` endpoint to edit/replace an existing order. This replaces the need to cancel and place a new order as 2 separate requests. NOTE: This feature is currently live for crypto quantity and options orders. Equities coming soon.

February 16, 2026

Update to how symbols are returned in the GET Portfolio v2 endpoint

When making a request to the GET Portfolio v2 endpoint, and an options position is returned, a suffix of -OPTION is returned at the end of the symbol. For example: TQQQ260116C00055500-OPTION.
The suffix will be removed to keep the symbols OSI compliant and allow symbol reuse.

February 2nd, 2026

Double API rate limit from 5 reqs/sec to 10 reqs/sec

We are doubling our rate limits from 5 reqs/sec to 10 reqs/sec. This change is global and applies to all endpoints. Note that rate limits are per account.

January 26, 2026

Notional limit orders for crypto

Notional (dollar-amount) limit orders are now supported for crypto.
For example, you can use the API to create a limit order to purchase $100 worth of BTC @ $87500.

{
  "orderId": "431ddd43-d8ce-4544-b06b-b08e6462139b",
  "instrument": {
    "symbol": "BTC",
    "type": "CRYPTO"
  },
  "orderSide": "BUY",
  "orderType": "LIMIT",
  "expiration": {
    "timeInForce": "DAY"
  },
  "amount": "100",
  "limitPrice": "87500"
}

November 24, 2025

Crypto fees update and new options greek endpoint

Crypto trading fees for the API have been updated to 0.6% each way (down from 1.2% each way)
New endpoint for options Greeks added where you can send a list of option OSI symbols to get Greeks for multiple contracts in a single request. See docs for details.

November 12, 2025

Crypto precision added to get instrument endpoint

Added crypto precision details to the get instrument endpoint to facilitate accurate order placements for crypto assets. When you retrieve instrument details for crypto assets, you'll now see precision information that indicates the number of decimal places supported for pricing and quantity.

November 6, 2025

Crypto trading support

Added support for crypto trading via the Public API powered by Zerohash.

June 24, 2025

Added support for Preflight

New preflight endpoints available for single-leg and multi-leg trades to estimate financial impact prior to order placement.

June 17, 2025

Initial release

Learn how to authenticate to the Public API and make your first request here.

To get started, create an account with Public.

Monthly Crypto Trading Volume

Fee

$0K–$10K

0.60%

$10K–$50K

0.50%

$50K–$100K

0.40%

$100K–$1M

0.30%

$1M–$15M

0.20%

$15M–$100M

0.15%

$100M+

0.10%

{ "orderId": "431ddd43-d8ce-4544-b06b-b08e6462139b", "instrument": { "symbol": "BTC", "type": "CRYPTO" }, "orderSide": "BUY", "orderType": "LIMIT", "expiration": { "timeInForce": "DAY" }, "amount": "100", "limitPrice": "87500" }