HoundDog.ai Launches ProtoMap to Show the Blast Radius of Every gRPC and Protobuf Change Across Monorepos and Microservices

Free, self-hosted service graph gives engineers and AI coding agents deterministic, org-wide context, refreshed on every commit

SAN FRANCISCO, Nov. 9, 2026 /PRNewswire/ -- HoundDog.ai, the deterministic code context engine company, today announced the launch of ProtoMap, an engine that maps every service, API, and field across monorepos and microservices. Engineers can install the web platform and CLI scanner for free, query their service graph in plain English, and connect AI coding agents through an MCP server.

"AI coding agents are writing more code than ever, and every change to a shared service, API, or field now ripples further and faster," said Amjad Afanah, co-founder of HoundDog.ai. "Agents shouldn't burn tokens rediscovering the same dependencies, or miss the ones in repositories they can't see. ProtoMap gives every engineer and every agent the same org-wide map, so they see the full dependency graph and blast radius before they change anything."

For engineering organizations running gRPC and protocol buffers at scale, knowing what a change will impact has become a bottleneck. API specifications don't capture every service and call site that consumes them, and context files fall behind as code changes.

What makes ProtoMap different is a deterministic Rust scanner that builds the service graph from source code on standard CPU, refreshed on every commit across every repo.

At an enterprise customer with a multi-million-line monorepo and a complex web of gRPC services, ProtoMap delivered an 8x reduction in tokens and time for change-planning tasks. The free version covers code on a developer's machine; the enterprise version keeps the graph fresh across the entire organization through CI.

In a benchmark across nine gRPC repositories with 5 million lines of code, ProtoMap made Claude Code 6.4x faster and 5.3x cheaper, at the same accuracy. In a recorded side-by-side session, Claude Code answered in 50 seconds for $0.40 with ProtoMap, against 6 minutes and $14.44 without it. ProtoMap was also demoed live at MozFest 2026.

About HoundDog.ai

HoundDog.ai builds lightweight, Rust-based code scanners that deliver a living, code-derived view of the services, APIs, data flows, and integrations across the software organizations build. The company builds two products: ProtoMap for engineers and AI coding agents, and the Privacy Code Scanner for privacy, security, and compliance teams. Learn more at hounddog.ai.

SOURCE HoundDog.ai, Inc.