yokai
Simple, modular, and observable Go framework for backend applications.
No outside reports on file
Yokai itself is a structural tool, but like any framework, it depends on other code and your configuration—misconfigurations and dependency vulnerabilities are the main risks.
Based on public adoption and transparency signals as of Oct 24, 2026. Our opinion, not a code audit or security guarantee.
What it can access
- Local filesNo local folder access notedLOW
- Command executionNo shell command runner notedLOW
- Network reachConnects to outside service APINOTED
- CredentialsNo API token requiredLOW
- Package sourceGitHub (ankorstore/yokai)PUBLIC
Inferred from this listing’s public package details and description. Check the project’s source before installing.
Install
No npm or PyPI package is listed. Install from source: github.com/ankorstore/yokai ↗
Everything known
We found nothing about this project in the sources we read (last checked 2026-10-30). That does not mean it has no problems.
0 incidents · 0 advisories · 0 news articles · 0 community threads · checked 2026-10-30
Popularity grade: C (from public signals such as stars and downloads, not a code review). Graded 2026-10-24.
Sources we read: OSV, GitHub Advisory Database, CISA Known Exploited Vulnerabilities, 44 security news feeds and our incident library. Last checked 2026-10-30.
About Yokai
Yokai is a Go framework for building backend applications with built-in support for modularity, observability (monitoring and logging), and common backend patterns. It helps developers structure server code in a clean, organized way and see what the application is doing during runtime.
Who it’s for
Go developers building backend services who want a structured framework with observability features built in. Teams that need organized, maintainable code and visibility into application behavior.
Alternatives
- Echo: Popular lightweight Go web framework with simpler setup.
- Gin: High-performance Go HTTP framework with middleware support.
- Chi: Lightweight router-focused framework for Go.
- Fiber: Go framework inspired by Express.js, fast and minimal.
Setup
Check these steps against the project’s own instructions before running anything.
Follow the setup steps in the project’s official README: https://github.com/ankorstore/yokai (opens external site)
Why this grade
Signal-based grade (3/7 points): well starred on GitHub, public source code. This reflects adoption and transparency, not a code review.
Popularity and upkeep
- GitHub stars
- 841
- Listing last refreshed
- 2026-10-29
These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.
Risks to watch for
- Code execution via dependencies: Yokai pulls in Go dependencies that run during your application startup; compromised dependencies could execute malicious code.
- Configuration injection: If your app reads backend settings from external sources (environment, files, APIs), attackers might inject malicious values that change behavior.
- Data exposure through observability: Debug logs and monitoring data might accidentally leak sensitive information (keys, user IDs, internal paths) if not carefully configured.
- Malicious code in examples: Attackers could submit code examples or plugins to the project that look helpful but contain hidden backdoors or data theft.
- Supply chain risk: The framework's own code could be compromised if project maintainers' accounts are breached.
How to lower the risk
Least-privilege permissions
- Run the application with minimal file system and network access needed.
- Restrict which environment variables the app can read.
Network isolation
- Isolate the backend from the internet unless it genuinely needs outbound access.
- Run inside a container or VM with limited network routes.
Monitoring
- Review logs regularly for unexpected errors or unusual behavior.
- Alert on failed authentication attempts or permission denials.
Red flags to watch for
- Unexpected new dependencies appearing in go.mod.
- Observability logs showing data you didn't expect to be logged.
- Slow performance, high CPU, or unexpected network traffic.
Questions
How do I install Yokai?
Yokai does not publish a standalone npm or PyPI package. Clone or follow the setup instructions in its source repository at github.com/ankorstore/yokai.
Are there security reports about Yokai?
No reports found for this package in our research (last checked 2026-10-30). Yokai currently holds Grade C (Moderate risk signals) based on public adoption and transparency signals. Key risk areas to watch include code execution via dependencies, configuration injection, data exposure through observability.
Is Yokai actively maintained?
Yokai has 841 GitHub stars. Our directory data was last refreshed on 2026-10-29. Check recent commit activity, release tags, and open issues at github.com/ankorstore/yokai before pinning it in production.
What are alternatives to Yokai?
Notable alternatives to Yokai include Echo (Popular lightweight Go web framework with simpler setup), Gin (High-performance Go HTTP framework with middleware support), Chi (Lightweight router-focused framework for Go), Fiber (Go framework inspired by Express.js, fast and minimal). You can also compare Yokai side by side with other MCP servers in the Related tools section on this page.
README badge and team notes
Maintain or use Yokai? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.
GitHub README Markdown:
[](https://agentarmorhq.com/skills/ankorstore-yokai)HTML embed:
<a href="https://agentarmorhq.com/skills/ankorstore-yokai"><img src="https://agentarmorhq.com/api/badge/ankorstore-yokai" alt="AgentArmorHQ Risk Grade for Yokai" height="20" /></a>Terminal check:
curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "ankorstore-yokai"Share with your security lead
Need sign-off to use yokai? Copy this note for Slack, a ticket or a pull request.
### AgentArmorHQ Security Review Memo: yokai
- **Listing URL:** https://agentarmorhq.com/skills/ankorstore-yokai
- **Type:** App connector
- **Risk Grade:** Grade C (Moderate risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 841 GitHub stars
#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** No shell command runner noted
- **Network reach:** Connects to outside service API
- **Credentials:** No API token required
- **Package source:** GitHub (ankorstore/yokai)
#### Recommended Hardened Setup
- **Source Repo:** https://github.com/ankorstore/yokai
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.
_Based on public adoption and transparency signals as of Oct 24, 2026. Our opinion, not a code audit or security guarantee._Key facts
- Type
- App connector
- Publisher
- ankorstore
- Source code
- github.com/ankorstore/yokai
- Est. context load
- ~700 tokens / turn (~4 tool schemas, 0.35% of 200k context)
- Popularity
- 841 GitHub stars
- Last updated
- 2026-10-29
- Last graded
- 2026-10-24
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