We Mapped 115 Microservices for Our Coding Agents — Kamalakannan Nandagopal, Postman
AI Engineer — Oct 8, 2026 — talk
Why watch
Kamalakannan Nandagopal shares how Postman built an API context graph to enable coding agents to work across their 115-microservice distributed system. The graph maps every service, endpoint, implementation, and database call, grounded in actual code and production telemetry. Key findings include 75% of PRs touching APIs, significant wins in API discovery and redesign, and a 21-page architecture review generated by the agent. The talk emphasizes that maintaining graph freshness is as critical as building it, with an honest discussion of when the graph went stale.