sabnzbd

SABnzbd is a self-hosted Usenet (NZB) downloader and queue manager that fetches, verifies, and extracts downloads from Usenet providers using NZB files.

Evaluated Mar 30, 2026 (33d ago)
Homepage ↗ Repo ↗ Infrastructure self-hosted usenet nzb downloader media-automation web-ui queue-manager
⚙ Agent Friendliness
32
/ 100
Can an agent use this?
🔒 Security
41
/ 100
Is it safe for agents?
⚡ Reliability
41
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
0
Documentation
35
Error Messages
0
Auth Simplicity
55
Rate Limits
10

🔒 Security

TLS Enforcement
40
Auth Strength
45
Scope Granularity
20
Dep. Hygiene
50
Secret Handling
50

As a self-hosted downloader, security depends heavily on deployment: ensuring HTTPS/TLS (often via reverse proxy), limiting bind address to trusted networks, using strong web UI credentials, and protecting API/control endpoints. Fine-grained scoped authorization is unlikely based on typical self-hosted models. Dependency posture and secret handling cannot be verified from the provided content.

⚡ Reliability

Uptime/SLA
0
Version Stability
60
Breaking Changes
55
Error Recovery
50
AF Security Reliability

Best When

You want a local, self-hosted Usenet automation tool with a browser-based UI and you can secure the host/network access appropriately.

Avoid When

You need strict, fine-grained auth/permission models across multiple users or you cannot expose/secure the web interface and APIs safely.

Use Cases

  • Home media download from Usenet (movies/TV/music) via NZB files
  • Automating and managing scheduled/queued Usenet downloads
  • Lightweight central downloader for a personal media server
  • Basic status/control of downloads in a web UI and via local interfaces

Not For

  • Public/hosted SaaS use where you need managed reliability and uptime guarantees
  • High-scale, multi-tenant environments without careful security hardening
  • Agent-driven workflows that require a fully documented external API/SDK with stable contracts
  • Environments where installing a service on your own infrastructure is not allowed

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
No
SDK
No
Webhooks
No

Authentication

Methods: Web UI session/cookie-based authentication (typical for self-hosted apps) Local network access control (common deployment practice)
OAuth: No Scopes: No

Auth mechanism specifics (API keys/scopes, etc.) were not provided in the supplied content, so scores emphasize uncertainty. In general, SABnzbd deployments rely on configuring the listening interface, reverse proxy, and web UI authentication rather than cloud-style OAuth/scoped tokens.

Pricing

Free tier: No
Requires CC: No

Open-source/self-hosted software; costs are infrastructure/hosting-related.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • This is a self-hosted service; an agent typically needs network access to the instance and must be careful not to overload it or trigger unsafe admin actions.
  • Without a clearly documented external API/contract in the provided material, agent automation may rely on brittle UI scraping or undocumented endpoints.
  • Long-running operations (download/extract) mean agents must handle asynchronous state changes rather than immediate request/response semantics.

Alternatives

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Scores are editorial opinions as of 2026-03-30.

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