Bullish

Bullish FIX API

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.

GitHub

Documentation

📖
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

Other Resources

🔗
ErrorCodes
https://raw.githubusercontent.com/api-evangelist/bullish/refs/heads/main/errors/bullish-error-codes.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: bullish:fix-api
name: Bullish FIX API
description: 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.
humanURL: https://docs.exchange.bullish.com/fix/introduction
baseURL: https://api.exchange.bullish.com
tags:
- FIX
- Trading
- Institutional
properties:
- type: Documentation
  url: https://docs.exchange.bullish.com/fix/introduction
- type: APIReference
  url: https://docs.exchange.bullish.com/fix/component-definitions
- type: Authentication
  url: https://docs.exchange.bullish.com/fix/session-management
- type: ErrorCodes
  url: errors/bullish-error-codes.yml