ProtoMap

Privacy-focused code scanner and API context engine for gRPC and Protobuf systems

Coding & Development Coding AssistantsFreemium

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About ProtoMap

HoundDog provides two integrated tools: ProtoMap and Privacy Code Scanner. ProtoMap functions as a context engine and model harness for gRPC and Protobuf, scanning source code to generate a real-time, cross-repository catalog of every API, field, and downstream consumer. It tracks callers, dependencies, call sites, and field-level dataflows, enabling coding agents to query the codebase in plain English or via MCP without token-heavy repository searches. The Privacy Code Scanner detects privacy risks by analyzing code-level dataflows to identify leaks of secrets, PII, PHI, and other sensitive data into logs, storage, APIs, third-party SDKs, and AI integrations. It automates GDPR data mapping, maintains Records of Processing Activities (RoPA), and supports privacy impact assessments with code-based evidence. Both tools integrate with CI pipelines to enforce privacy and security checks before production deployment, supporting privacy-by-design practices for engineering and compliance teams.

Key features

Cross-repository API and field cataloging
Real-time dataflow tracking across commits
MCP server for AI coding agent integration
GDPR data mapping and RoPA automation
Privacy impact assessment (PIA & DPIA) support
Pre-merge CI integration for privacy checks
Shadow AI and third-party data flow monitoring
Deterministic evidence generation for compliance

Use cases

Automating GDPR data mapping for compliance teams
Providing AI coding agents with real-time codebase context
Detecting and preventing PII, PHI, and secret leaks in CI

Pros

Deterministic, always-fresh catalog of APIs and dataflows
Real-time cross-repository context for AI coding agents
Automated GDPR data mapping with code-based evidence
Pre-merge CI checks to prevent data leaks
Supports gRPC, Protobuf, and MCP server integration

Cons

Free tier limited to single-machine use
Requires gRPC and Protobuf codebases for full functionality
No explicit support for non-gRPC/Protobuf systems

Frequently asked questions about ProtoMap

What is ProtoMap and who is it designed for?

ProtoMap is a context engine and model harness for gRPC and Protobuf that scans source code to generate a real-time, cross-repository catalog of APIs, fields, and downstream consumers. It is designed for engineering teams and coding agents that need organization-wide context on services and message flows.

How does ProtoMap help coding agents?

ProtoMap provides coding agents with real-time codebase context, enabling them to query the codebase in plain English or via MCP without token-heavy repository searches. This reduces token usage and speeds up responses during development tasks.

What does the Privacy Code Scanner do?

The Privacy Code Scanner detects privacy risks by analyzing code-level dataflows to identify leaks of secrets, PII, PHI, and other sensitive data into logs, storage, APIs, third-party SDKs, and AI integrations. It automates GDPR data mapping and maintains Records of Processing Activities (RoPA) with code-based evidence.

How does ProtoMap integrate with CI pipelines?

ProtoMap integrates with CI pipelines to enforce privacy and security checks before production deployment, supporting privacy-by-design practices for engineering and compliance teams. It helps catch violations and leaks in pull requests.

Can ProtoMap be used for shadow AI discovery?

Yes, ProtoMap can detect sensitive data flowing to LLMs and third-party integrations, helping teams identify shadow AI usage and potential data exposure risks within their codebase.

Is ProtoMap available for free?

ProtoMap is available for free on GitHub for individual use, while cloud or on-premises deployment options are available for organizations.