Onyx MCP Sandbox

Onyx is a **MCP (Model Context Protocol) server** that executes code securely inside **Docker sandboxes**. It supports multiple programming languages and integrates seamlessly with **Claude Desktop** or other MCP clients. Onyx makes it safe and easy to execute arbitrary code in a **sandboxed MCP environment**. Perfect for **Claude Desktop** power users or anyone building AI workflows with executable code.

Evaluated Mar 18, 2026 (0d ago)
Repo ↗ Databases
⚙ Agent Friendliness
60
/ 100
Can an agent use this?
🔒 Security
49
/ 100
Is it safe for agents?
⚡ Reliability
48
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
--
Documentation
--
Error Messages
--
Auth Simplicity
20
Rate Limits
75

🔒 Security

TLS Enforcement
70
Auth Strength
30
Scope Granularity
50
Dep. Hygiene
50
Secret Handling
50

⚡ Reliability

Uptime/SLA
40
Version Stability
60
Breaking Changes
50
Error Recovery
40
AF Security Reliability

Interface

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

Authentication

OAuth: No Scopes: No

Pricing

Free tier: No
Requires CC: No

Agent Metadata

Idempotent
Unknown
Retry Guidance
Not documented

Full Evaluation Report

Comprehensive deep-dive: security analysis, reliability audit, agent experience review, cost modeling, competitive positioning, and improvement roadmap for Onyx MCP Sandbox.

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Package Brief

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Score Monitoring

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API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-18.

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Packages Evaluated
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