Agent Discovery in 2026: DNS-SD, ACP Registries, and Pilot Protocol's Overlay Directory

Short summary

Agent discovery is foundational infrastructure that shapes security, latency, and cross-ecosystem interoperability. DNS-SD handles local setups well but fails at scale; centralized registries dominate production but create vendor lock-in; Pilot Protocol uses overlay networking with cryptographic identity to span cloud, home, and edge devices. The choice made early tends to calcify fast.

• •DNS-SD (mDNS) works well for local networks but lacks semantic filtering and NAT traversal capabilities
• •Centralized ACP-style registries dominate production platforms but introduce single points of failure and ecosystem silos
• •Pilot Protocol's overlay approach uses Ed25519 cryptographic identity and relay routing to unify cloud, home, and edge devices in one namespace

Generated with AI, which can make mistakes.