Electronic bond-trading platforms are racing to expand their offerings as traders demand greater integration of the technology that is transforming how they buy and sell holdings.

Trade-data aggregator Algomi announced Tuesday a feature allowing clients to execute trades directly on platforms Liquidnet and Trumid through its own interface. With the move, Algomi is pushing to be first to market with a bond execution-management system, or EMS, akin to those that have existed for more than a decade in equity markets.