Disclosed is distributed computer system for orchestrating multi-agent collaboration comprising plurality of computing nodes communicably coupled via communication network, each computing node comprising at least one agent. System further comprises first agent, of plurality of agents, configured to: receive service request (SR); call large language model(s) to generate structured service data (SSD) for execution of SR; and invoke, via communication channel (CC), at least one second agent using SSD, wherein first and at least one second agents are configured to exchange messages via CC to iteratively evaluate SSD and reach consensus on execution of SR. System further comprises at least one execution agent configured to: execute at least one task corresponding to SSD in response to consensus, wherein at least one agent is configured to: generate output from executed at least one task; and update CC based on output to record completion of at least one task, thereby fulfilling SR.