Pricing
Not listed
Official monthly price not confirmed
- API
- Not confirmed
Silmaril
● Identity checkedCode · Vendor site 2026-10-04
Silmaril provides security for AI coding agents that self-improves against real attacks in your environment. The site frames agent inputs, trusted context, and the open web as attack surfaces, and shows a firewall-style console that inspects events, tool calls, and payloads for malicious behavior across tools like Cursor, Claude Code, and Copilot.
- Category
- Code
- Free access
- Not confirmed
- API access
- Not confirmed
Is Silmaril right for you?
A good fit for
Security and platform teams deploying coding agents who need continuous guardrails against prompt injection, tool abuse, and data exfiltration.
Before you choose
Commercial packaging is offered through demo calls rather than self-serve pricing on the public site.
Agent firewall
Silmaril markets an AI firewall that continuously learns from real agent traffic to block malicious tool use, hidden instructions, and open-web delivery attacks before they reach production systems.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Self-improving defense | Homepage headline describes security for agents that self-improves against discovered attacks. | Facts sourced | 2026-10-04 |
| Agent tool coverage | Marketing lists integrations with Codex, Claude Code, GitHub Copilot, Cursor, Gemini CLI, Windsurf, and related agent stacks. | Facts sourced | 2026-10-04 |
| Live inspection UI | Product imagery shows searchable event, tool, and preview inspection with benign versus malicious verdicts. | Facts sourced | 2026-10-04 |
Understand the total cost
Silmaril pricing & plans
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Explore toolThe practical questions
Frequently asked questions
What is Silmaril used for?
Silmaril provides security for AI coding agents that self-improves against real attacks in your environment. The site frames agent inputs, trusted context, and the open web as attack surfaces, and shows a firewall-style console that inspects events, tool calls, and payloads for malicious behavior across tools like Cursor, Claude Code, and Copilot.
Does Silmaril have a free plan?
Not confirmed. This record does not confirm an ongoing free plan.
How much does Silmaril cost?
A listed monthly price has not been confirmed. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Silmaril through an API?
Not confirmed. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Commercial packaging is offered through demo calls rather than self-serve pricing on the public site.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.