# Bullish FIX API

**Canonical:** https://apis.io/apis/bullish/fix-api/  
**Provider:** Bullish — https://apis.io/providers/bullish/  
**Base URL:** https://api.exchange.bullish.com  
**Documentation:** https://docs.exchange.bullish.com/fix/introduction

Bullish FIX API is one of 32 APIs that [Bullish](https://apis.io/providers/bullish/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include FIX, Trading, and Institutional. The published artifact set on APIs.io includes API documentation, an API reference, and authentication docs.

The Bullish FIX order-entry, drop-copy, reference-data and trading-status surface for institutional and high-frequency clients, with session management and component definitions documented. Rejections carry OrdRejReason (tag 103) and Text (tag 58) using the same numeric registry as REST.

## Machine-readable artifacts (4)

- **Documentation** — https://docs.exchange.bullish.com/fix/introduction
- **APIReference** — https://docs.exchange.bullish.com/fix/component-definitions
- **Authentication** — https://docs.exchange.bullish.com/fix/session-management
- **ErrorCodes** — https://raw.githubusercontent.com/api-evangelist/bullish/refs/heads/main/errors/bullish-error-codes.yml

## Other Bullish APIs (12)

- [Bullish Deprecated Features and APIs](https://apis.io/apis/bullish/deprecated-api/)
- [Bullish WebSocket Multi-Order Book API](https://apis.io/apis/bullish/ws-orderbook/)
- [Bullish WebSocket Anonymous Trades API](https://apis.io/apis/bullish/ws-trades/)
- [Bullish WebSocket Anonymous Ticks API](https://apis.io/apis/bullish/ws-ticks/)
- [Bullish WebSocket Auction Feed API](https://apis.io/apis/bullish/ws-auction/)
- [Bullish WebSocket Index Data API](https://apis.io/apis/bullish/ws-index-data/)
- [Bullish WebSocket Private Data API](https://apis.io/apis/bullish/ws-private-data/)
- [Bullish Aggregator API](https://apis.io/apis/bullish/aggregator-api/)
- [Bullish Account Assets API](https://apis.io/apis/bullish/bullish-account-assets-api/)
- [Bullish Amm Instructions API](https://apis.io/apis/bullish/bullish-amm-instructions-api/)
- [Bullish Asset Data API](https://apis.io/apis/bullish/bullish-asset-data-api/)
- [Bullish Auction Public API](https://apis.io/apis/bullish/bullish-auction-public-api/)

## Tags

FIX, Trading, Institutional

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/bullish/fix-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/bullish/.