# abyo software 合同会社 (abyo software LLC)

> abyo software is a Japanese software company that builds the **S4 family** — drop-in Amazon EC2 appliances, sold on AWS Marketplace, that replace metered AWS services with predictable hourly pricing. Each S4 product runs inside the customer's own AWS account/VPC, slots into an existing wire protocol or route with no application changes, keeps output in standard formats (no lock-in), and is billed as an hourly software fee plus the EC2 instance (annual options available, no license keys). The website (https://abyo.net) is bilingual: Japanese at the root, English under /en/.

## S4 family — AWS Marketplace products

- [S4 — Squished S3](https://abyo.net/en/s4/s4): Transparent, S3-compatible storage gateway with GPU (NVIDIA nvCOMP) compression. Cuts S3 **storage bytes** 50–80% for compressible data (logs, JSON, Parquet/ORC) with zero application changes; request/egress/GPU compute are unchanged. AWS Marketplace: https://aws.amazon.com/marketplace/pp/prodview-yvesl7lunql6i
- [S4 Logs](https://abyo.net/en/s4/s4-logs): Archives Amazon CloudWatch Logs to zstd-compressed S3 and can bypass ingest with a PutLogEvents-compatible gateway. ~70–90% off the bill in Mode B (bypassing ingest); Mode A cuts only the storage line. Organizations multi-account drain, WORM/Object Lock (SEC 17a-4), archives readable with plain zstd + Athena. AWS Marketplace: https://aws.amazon.com/marketplace/pp/prodview-p3vxywkqd4oii
- [S4 Metrics](https://abyo.net/en/s4/s4-metrics): Governs CloudWatch custom-metric **cardinality** at the ingest edge (drop/bucket/aggregate before PutMetricData). Auto-baseline proposes a priced rule set; Organizations consolidated rollup via a read-only (ListMetrics-only) role; rules are plain OSS YAML. AWS Marketplace: https://aws.amazon.com/marketplace/pp/prodview-er4di2dxq5gpy
- [S4 NAT](https://abyo.net/en/s4/s4-nat): EC2 NAT-instance AMI that replaces the AWS NAT Gateway. Flat hourly fee + EC2, **$0/GB** data-processing (cost decoupled from egress volume). Active/standby HA with sub-10s failover (fast, not hitless), NAT64 for IPv6-only subnets, CloudFormation single + HA templates. AWS Marketplace: https://aws.amazon.com/marketplace/pp/prodview-ojqp3scqmpsp4
- [S4 LogForge](https://abyo.net/en/s4/s4-logforge): Realistic SIEM test-log generator. 13 parser-faithful formats (syslog, CEF, LEEF, PAN-OS CSV, ECS JSON, Windows Event/Winlogbeat, CloudTrail, VPC Flow, Zeek, Suricata, XDR) verified against real parsers; MITRE ATT&CK-tagged correlated scenarios with ground truth; deterministic, 188k–1.6M events/sec. AWS Marketplace: https://aws.amazon.com/marketplace/pp/prodview-xbjwvhzcn22qk
- [S4 Scan](https://abyo.net/en/s4/s4-scan): Reduces Amazon Athena / Redshift Spectrum **scan** cost 30–70% by re-optimizing S3 Parquet (partition + row-group pruning, dictionary + zstd, small-file compaction) to your real query patterns. Safe shadow→verify→swap that never modifies the source in place; one-command rollback; dry-run dollar projection. AWS Marketplace: https://aws.amazon.com/marketplace/pp/prodview-gldgx62kafiom
- [S4 MockAPI](https://abyo.net/en/s4/s4-mockapi): Mock server that answers like real security-product APIs (Trend Micro Vision One-compatible REST, Palo Alto Networks PAN-OS-compatible XML, plus any OpenAPI 3.x doc) so teams build/test SIEM/SOAR integrations without product licenses. Synthetic data, deterministic fault injection, fully offline. AWS Marketplace: https://aws.amazon.com/marketplace/pp/prodview-3lnub6aqhhi76

## Key facts

- **Pricing**: AWS Marketplace AMI, hourly software fee + the EC2 instance you choose, metered per instance type; annual options on most products; no license keys.
- **Deployment**: runs in your own AWS account/VPC via AMI and/or CloudFormation; data never leaves your account.
- **No lock-in**: output stays in standard, open formats (zstd, standard Athena-readable Parquet, plain OSS YAML) that remain usable after cancellation.
- **Seller**: abyo software 合同会社 on AWS Marketplace — https://aws.amazon.com/marketplace/seller-profile?id=seller-65lhisp4ppavm

## Company

- [Home (日本語)](https://abyo.net/) / [Home (English)](https://abyo.net/en/)
- [Other products](https://abyo.net/en/products): SaaS, mobile apps and game-development tools (SBOMHub, CrawlOwl, Nyambush, ExtWatch, MCP servers for Godot/Unity/Blender/GameMaker, and more) — primarily for the Japanese market.
- Contact: contact@abyo.net
- Legal (Japanese): [特定商取引法に基づく表記](https://abyo.net/tokushoho) · [Privacy policy](https://abyo.net/privacy)