Cloud-Free Log Intelligence — No Public Cloud, No Per-GB Fees

Complete visibility into your Windows infrastructure.
Nothing to install but Fluent Bit.

Thesseus ingests, indexes and surfaces logs from any application on your Windows servers. You connect via browser. We handle the infrastructure. Flat monthly pricing.

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thesseus — live log stream
[2026-03-16 14:22:01] INFO Security EventID 4624 — Logon success — user: [email protected]
[2026-03-16 14:22:03] WARN System EventID 7036 — Service state change: Spooler → stopped
[2026-03-16 14:22:05] ERROR Security EventID 4625 — Failed logon — user: unknown (192.168.1.44)
[2026-03-16 14:22:06] ERROR Security EventID 4625 — Failed logon — user: unknown (192.168.1.44)
[2026-03-16 14:22:06] ALERT Engine ⚡ Brute-force rule fired → Slack #security-alerts notified
[2026-03-16 14:22:09] INFO App EventID 1000 — Application heartbeat — host: WIN-PROD-01
[2026-03-16 14:22:11] INFO Ingest Batch received — 47 events — host: WIN-PROD-02
Platform Capabilities

Everything you need to operate Windows environments at scale

No cloud. No per-seat fees. Full data ownership — running on your own server in minutes.

Real-time Ingest

Fluent Bit ships logs from any application on your Windows infrastructure directly to Thesseus over HTTP. Batched, rate-limited, and backpressure-safe.

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Live Search & Filter

Search by keyword, EventID, level, host, or time range. Results stream instantly — no full-text index lag.

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Smart Alert Engine

Write threshold or keyword rules. Fire to Slack, Teams, Email, or Webhook. Evaluates every 60 seconds.

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Multi-Tenant Architecture

Each customer org is fully isolated. Each team sees only their own data — no cross-tenant visibility.

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Secure by Default

JWT access + refresh tokens, bcrypt passwords, SHA-256 API keys, brute force protection, and HTTPS support.

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Retention & Archives

Automatic nightly archiving to compressed .jsonl.gz files. Configurable per-org retention in days.

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Timeseries & Stats

Log volume over time, top hosts, error rates — all computed server-side and rendered on your dashboard.

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API Key Management

Generate and revoke API keys per org. Each key is hashed at rest — plain text never stored.

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PM2 Process Management

Runs as a managed process — auto-restart on crash, survives Windows reboots, zero-downtime deploys.

Quick Setup

Up and running in under 15 minutes

No cloud accounts. No complex infrastructure. Just your Windows server and a config file.

1

We provision your account

Your Thesseus dashboard is ready immediately — no setup required on your end.

2

Install Fluent Bit on your Windows servers

Drop in our config file on each host. Fluent Bit ships logs automatically — 10 minutes per server.

3

Connect your first host

Log in to your dashboard and register your first host with an API key in seconds.

4

Search, alert and monitor

Logs flow in live. Set your first alert rule. Sleep well.

Pricing

Simple, flat-rate pricing

No per-host fees. No data caps. No surprise bills at the end of the month.

Monthly
Annual 2 months free
Starter
$79/mo
For small teams getting started
  • Up to 3 users
  • Up to 4 monitored VMs
  • 7-day log retention
  • Alerts (Slack, Teams, Email, Webhook)
  • API access
Get Started
Enterprise
Custom
For large or multi-site deployments
  • Unlimited users
  • Unlimited VMs
  • 90-day log retention
  • Everything in Pro
  • Dedicated support
Contact Us
Trusted

Trusted by Windows infrastructure teams

Join the companies already running Thesseus on their own servers.

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Get In Touch

Request a Demo

See Thesseus running live on a real Windows environment. We'll walk you through setup to first alert.

We respond within 24 hours. No sales pressure.

Ready to own your observability stack?

Nothing to deploy. Just connect Fluent Bit and your logs are live within minutes.

Get Started Request a Demo