Orthogonal, an AI agent infrastructure layer, has successfully raised $4.3 million in a funding round led by Pantera Capital. The round saw participation from notable investors including Y Combinator, Pioneer Fund, Decasonic, Blast Club, Outbound Capital, Rice Capital, Surreal by Premise, and Batch Ventures. The company is developing a platform that enables AI agents to instantly discover and utilize necessary tools based on demand, addressing issues of agent failure and hallucination due to reliance on fixed tools. This platform allows for seamless orchestration and on-demand payment, enhancing the efficiency and reliability of AI agents.