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SandBase Harness MCP server

by sandbaseai·io.github.sandbaseai/sandbase-harness·v0.3.8
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Stdio MCP bridge for SandBase Harness agents, sessions, turns, artifacts, and cancellation.

B70/100grade B
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Safety scan
B70/100

full report

Adoption
Growing

648 stars

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Nobody has reviewed SandBase Harness yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

SandBase Harness tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

no findings
  • –Code scanpackage could not be scannedn/a
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner7/10
Overall 70/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

What the publisher says

From the SandBase Harness repository's README, as published. We do not edit it. Read it on GitHub

SandBase Harness

English | 中文

AI-readable project metadata: llms.txt · installation guide

A local-first runtime for AI agents. Sessions, sandboxed tools, memory, credentials, audit trails, and a built-in Console — all running on your machine or in your own infrastructure.

Building with DeepSeek Harness? The independent DeepSeek Harness Handbook provides source-backed runtime guides, multilingual troubleshooting, and a regularly updated Agent-first resource map.

Looking for a lightweight bridge instead of a full runtime? SandBase CLI

connects 25 AI client targets to 2,000+ models and APIs through a local stdio MCP bridge.

If it fits your workflow, star SandBase CLI

so other agent users can discover it.

Need hosted model and media APIs instead? SandBase provides one interface for

LLM, image, and video generation APIs,

with the API quickstart covering keys and first calls.

git clone --branch v0.3.8 --depth 1 https://github.com/sandbaseai/sandbase-harness.git
cd sandbase-harness
npm ci
npm run build
mkdir ../my-agents && cd ../my-agents
node ../sandbase-harness/dist/index.js init
node ../sandbase-harness/dist/index.js start
# open http://127.0.0.1:3000/dashboard

Choose SandBase Harness when you need more than a model loop:

If this runtime solves a real agent-infrastructure problem for you, star the repository so other builders can find it.

Find SandBase Harness

The project is also discoverable through these independent ecosystem directories:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Install directly

claude mcp add sandbase-harness -- docker run -i --rm ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8
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SandBase Harness: common questions

Is SandBase Harness MCP server safe?
Mostly: it is graded B (70/100). Read the SandBase Harness safety report
How do I install SandBase Harness?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does SandBase Harness need an API key?
Yes. The registry entry asks for MANAGED_AGENTS_API_KEY.
Is SandBase Harness maintained?
The last commit was in the last day (2026-09-20). The latest release is v0.3.8.
What can I use instead of SandBase Harness?
Servers from other publishers that do the same job: Funplay Cocos MCP server.

Alternatives to SandBase Harness

Same job from other publishers: the closest match first, then the best rated.

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    stdio bridge for the local Cocos Creator Editor MCP server from FunplayAI/funplay-cocos-mcp.
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