Available on Google Cloud Marketplace

The Verifiable Handoff Layer
For Enterprise Agents.

A2AC replaces fragile natural-language handoffs with the Cube Protocol: deterministic task, result, and error cubes that can be compressed, verified, routed, and audited directly inside your Google Cloud project.

Request Access See How It Works
GZIP
Payload Compression
SHA-256
Cryptographic Integrity
Vertex AI
Native Model Engine
Built Exclusively On
Google Cloud Cloud Run Vertex AI BigQuery Firestore Pub/Sub

Everything is a cube, not an API.

A2AC is the enterprise orchestration platform. Cube Protocol wraps APIs, queues, and model calls in integrity-checked, GZIP-compressed data matrices. Every handoff becomes a structured cube that can be routed, audited, and rejected if corrupted.

01

Connect

Register your systems - Salesforce, Azure, Google Cloud, local tools, AI models. A2AC maps everything into a unified registry. Every system gets a verified identity.

REGISTRY // CONNECTED
02

Execute

Run workflows across connected systems. A2AC routes intent to the right tool, model, or agent. Every execution produces a cryptographic receipt - proof of what happened.

RECEIPTS // IMMUTABLE
03

Converge

As agents share structure, repeated context can be routed as verified cubes instead of resent as chat. The system reuses receipts, memory, and typed payloads before making new model calls.

CUBES // VERIFIED

One platform. Every capability.

A2AC is not a framework. It is infrastructure - the layer underneath that makes all AI systems work together, remember, and prove what happened.

Cube Validation

Validate Q-Protocol agent definitions for structure and correctness. Every cube is compressed (GZIP), content-hashed (SHA-256), and checked before downstream systems trust it.

GZIP + SHA-256

Semantic Brain

Vertex AI powered semantic memory. Agents store and recall context across sessions using vector embeddings. Memory is re-entry, not storage - it reorients the present, not recreates the past.

Vertex AI embeddings + ChromaDB

Workflow Ledger

Append-only record of agent transactions with content hashes, source identity, timestamps, and execution metadata. Every action, workflow, and handoff can be reviewed.

BIGQUERY // AUDIT RECEIPTS

A2A Protocol Native

Built on Google's Agent-to-Agent (A2A) protocol. Discoverable via /.well-known/agent.json. Register agents with typed capabilities, constraints, and verified identities. Interoperable with any A2A-compatible agent across any platform.

A2A PROTOCOL // GOOGLE COMPATIBLE

Hybrid Architecture

Control plane at A2AC. Data plane in your GCP project. Your data stays in your project with clean tenant separation, auditable handoffs, and deployment patterns built for enterprise review.

PARTNER TENANT // CUSTOMER TENANT

Session Continuity

StartQ boots the session - loads rules, calibrates agents, checks brain health. EndQ closes it - persists state, saves transcripts, backs up cubes. The next agent picks up exactly where the last left off.

STARTQ → EXECUTE → ENDQ

A2A Agent Card Validator + Builder

Validate your existing A2A agent card or build a new one. Get a compatibility score, Cube Protocol signature metadata, and downloadable JSON.

Build a new card or validate an existing one
A2A-compatible · Cube signed · JSON-ready

Hybrid SaaS. Your data, your project.

A2AC runs the control plane. You run the data plane. Clean tenant separation with Google Cloud Marketplace procurement and consolidated billing.

GCP - Partner Tenant
A2AC LLC
Partner-managed GCP project
a2ac-gatewayCloud Run · Ingress
a2ac-hubCloud Run · Registry
a2ac-executorCloud Run · Workflow
cube-brainCloud Run · Memory
a2ac-receiptsCloud Run · Audit
FirestoreNative · State
Secret ManagerManaged credentials
Vertex AIGemini 3 Flash Preview
Coordination
Memory
Metering
GCP - Customer Tenant
Your GCP Project
Customer-owned infrastructure
Swarm NodeCloud Run · Agents
FirestoreWorkflow State
BigQueryAudit Trail
Pub/SubWorkflow Events
Vertex AICustomer Model
IAMWorkload Identity
Google Cloud Marketplace - Enterprise Procurement · Consolidated Billing · Unified Support
On-Premises - CRM · Existing AI/ML · Enterprise Apps

Cryptographic verification. Not compliance theater.

A2AC separates implemented controls from roadmap controls and returns structured receipts instead of relying on conversational logs.

Cryptographic Receipts

Every action can produce an integrity-checked receipt with content hash, timestamp, source identity, and execution constraints. Tamper evidence is built into the handoff boundary.

✓ DEPLOYED

TLS 1.3 Everywhere

All endpoints secured with GCP-managed TLS 1.3 certificates. Cloud Run HTTPS ingress with automatic certificate rotation. No plaintext communication.

✓ DEPLOYED

Secret Manager

All credentials stored in Google Cloud Secret Manager. Zero hardcoded keys in source code. Runtime injection via service account bindings only.

✓ DEPLOYED

IAM Least-Privilege

Each Cloud Run service operates under a dedicated service account with minimal role bindings. No default service account usage. Workload Identity Federation for cross-tenant auth.

✓ DEPLOYED

Encryption at Rest

Firestore, Cloud Storage, and BigQuery data encrypted at rest using Google-managed encryption keys. Customer-managed encryption keys (CMEK) available for enterprise tier.

✓ DEPLOYED

Immutable Audit Trail

Agent actions, workflow executions, and state transitions can be written to an append-only audit trail in the customer's own BigQuery dataset.

✓ DEPLOYED
Security Roadmap

Cloud Armor WAF policies, VPC Service Controls perimeter, Binary Authorization for container images, and Data Access audit logging are in active development. SOC 2 Type II audit engagement planned for Q3 2026.

Model-agnostic at the orchestration layer.

A2AC coordinates agents regardless of the underlying model. Default Google Cloud infrastructure uses Vertex AI with Gemini 3 Flash Preview, with generally available Gemini 2.5 fallbacks for customers that require GA-only deployments.

DEFAULT

Gemini 3 Flash Preview

Default agent reasoning and workflow coordination via Vertex AI Preview.

VERTEX AI // PREVIEW
ANALYSIS

Gemini 3 Pro Preview

Complex multi-step analysis and synthesis tasks where approved for the deployment.

VERTEX AI // PREVIEW
EMBEDDINGS

Vertex AI Embeddings

Semantic search and agent memory embeddings using customer-approved Vertex AI embedding models.

VERTEX AI
OPTIONAL

Custom Vertex AI Endpoint

Customer-approved tuned or private model endpoints for domain-specific classification.

VERTEX AI

A2AC LLC

We build infrastructure for AI coordination. Not frameworks. Not wrappers. The connective tissue that makes all AI systems work together, remember, and prove what happened.

Legal Entity
A2AC LLC - Wyoming
Founder
Phil Hills - AI Systems Architect
Infrastructure
100% Google Cloud Platform
Protocol
Q Protocol - an open coordination standard for AI agent systems.
Get Started

Ready to connect your AI systems?

A2AC is available on Google Cloud Marketplace. Contact us for a pilot program or enterprise deployment.

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