Join screening
New members are checked against the registry the moment they join. Flagged accounts are logged, quarantined or removed based on your rules.
All systems operational
Status
Sentinel Systems
Community protection built on a live threat database, automated moderation and complete transparency.
- Guilds protected
- 0
- Members covered
- 0
- Accounts flagged
- 0
- Lookups served
- 0
Trusted by communities across Discord, FiveM and Roblox
Why Sentinel exists
The same people cause trouble in server after server.
A raider banned from one community walks straight into the next. Scammers recycle alt accounts. Leakers move between roleplay servers faster than staff teams can compare notes.
Sentinel gives moderators one shared, evidence-backed record. When a partnered community confirms a threat, every other community using Sentinel is protected within seconds — automatically, before that account can do any damage.
From report to protection in four steps
Every flag is reviewed by a person. Nothing is added to the registry on an algorithm's say-so.
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1
Report
A moderator or member submits a report with evidence through the website or the bot.
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2
Review
Our staff check the evidence. Outcomes need a second opinion from another team member.
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3
Flag
Confirmed accounts are added to the registry with a category and severity level.
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4
Protect
Every connected server, game and integration acts on the flag the next time that account appears.
Everything your moderation team needs
One bot, one dashboard and one registry — shared across every server you run.
Reports with evidence
Structured report forms with screenshots and links, a private conversation with staff, and a clear outcome at the end.
Two-person review
No single staff member can flag an account alone. Every decision is signed off and recorded in an audit log.
Fair appeals
Anyone flagged can appeal. Appeals are read by a different reviewer, and flags are lifted when the evidence no longer stands.
Server Manager
Configure every server you moderate from one web dashboard, or run /settings directly in Discord.
Developer API
Read-only JSON endpoints for single and bulk lookups, so you can build the registry into your own tools.
What we track
Clear categories, clear severity
Every flag carries a category and a severity, so your server can decide exactly how strictly to respond — log only, hold for review, or remove on sight.
Search the registry-
Confidential Confidential Flags are to be applied only in extreme circumstances.Critical
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Leaking Sharing private or confidential material without consent.High
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Malicious Comms Malicious, threatening or abusive communications.Critical
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Scamming Fraud, scams or financial deception.High
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Raiding Participating in or organising server raids.Medium
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Impersonation Impersonating staff, brands or other members.Medium
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Other Does not fit an existing category.Low
For developers
Bring the registry into your own stack
Public endpoints for lookups, bulk checks and live statistics. No key needed for public data.
- Single and bulk lookups (up to 100 IDs per request)
- Severity and category on every result
- Health and statistics endpoints for dashboards
GET /api/lookup.php?id=175731434651254784
{
"flagged": true,
"severity": "High",
"flags": [
{ "name": "Raiding", "severity": "High" }
]
}Extend Sentinel into your game servers
Paid integrations that screen players against the registry before they load in. Available through our Discord.
FiveM
Paid addon
sentinel_gate
Server-side join gate that screens every player against the registry before they connect.
Roblox
Paid addon
SentinelGate
Luau join gate for Roblox experiences, resolving Discord accounts through RoVer or Bloxlink.
Built on accountability
Evidence first
No evidence, no flag. Every entry links back to a reviewed report.
Privacy by default
Evidence is restricted to authorised staff and is never sold or shared outside Sentinel.
Open appeals
Anyone can challenge a flag, and every decision is logged.
Free core service
Join screening, lookups and reports cost nothing, for any size of community.
Sentinel Systems is a Discord bot designed to protect Discord servers from rule breakers and community risks using an extensive database and a robust moderation system.
Sentinel uses advanced detection to identify disruptive behaviour, offering automated moderation, comprehensive logging and real-time updates against new and emerging risks.
Yes. Sentinel Systems is completely free, providing protection for your community at no cost.
Use the "Invite Sentinel" button on the homepage, or the bot invite link shared in our Discord server.
Join our Discord community using the button on the homepage, or submit a report through the Report page. Our team is always happy to help.
Protect your community today
Add Sentinel in under a minute. Core protection is free for every server.