Infrastructure & Availability
Architecture Overview
High-level overview of Antei’s platform architecture, infrastructure providers, and deployment principles.
Architecture Overview
Antei runs on a hybrid architecture combining service-oriented design with event-driven workflows. This approach enables modularity, reliability, and responsiveness — critical for secure and scalable indirect tax operations.
All services are deployed across Google Cloud Platform (GCP) and Cloudflare, with PostgreSQL as the core data layer.
Core Architectural Principles
- Modular Service Components — Ingestion, validation, invoicing, reconciliation, and email logic are implemented as independent services.
- Event-Driven Pipelines — Webhooks and triggers from connected platforms (e.g., Stripe, Gmail) drive real-time workflows.
- Stateless Serverless Workers — Cloudflare Workers handle extraction, ingestion, email dispatch, and file rendering without persistent state.
- Structured Background Jobs — Fallbacks, audits, reconciliations, and cron-driven syncs are orchestrated through Xano and PostgreSQL.
- Data Isolation by Organization — All data is logically partitioned and scoped to ensure security and multi-tenant compliance.
- Auditability by Default — Every major action is timestamped and stored, enabling traceability and compliance review.
Infrastructure Stack
| Layer | Provider | Purpose |
|---|---|---|
| Frontend | Retool | Public-facing app on *.tax.antei.com |
| Business Logic | Xano | Auth, orchestration, fallback logic, API routes |
| Database | PostgreSQL on GCP | Structured relational storage for all primary entities |
| Background Jobs | Xano Cron | Reconciliation, sync, validation, calculations |
| Serverless Workers | Cloudflare | Ingestion, extraction, document generation, email |
| File Storage | Cloudflare R2 | PDFs, registration assets, legal documents, logos |
| Async Services | Railway, Render | XLSX conversion, fallback retry logic, ingestion helpers |
Hybrid Architecture Summary
Antei combines:
- Service-Oriented Logic (via Xano + Workers) for predictability, reusability, and modular scope
- Event-Driven Triggers (via webhooks) for real-time sync and responsiveness
- Cron-based Reliability for reprocessing, reconciliation, and periodic syncs
This allows for a system that is fast where it matters, but reliable and traceable where needed.
Data Flow Summary
- Data enters via secure endpoints (Workers or Xano APIs)
- Structured records are persisted in PostgreSQL on GCP
- File-based assets are stored in Cloudflare R2
- Processing steps are logged with metadata and timestamps
- Sensitive data is tagged and scoped based on classification rules
Diagram
Compliance by Design
Our infrastructure stack is built for security, auditability, and scale:
- All endpoints use TLS 1.2+
- Hosting partners follow SOC 2 / ISO 27001-aligned controls
- Per-org access controls enforced at application and database levels
- High-availability setup with internal observability for job and data health