SandBase Harness MCP Server

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.

People who need DevOps & monitoring tools inside Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-23 · ★ 633 · #36 OF 101 MAINTAINED DEVOPS & MONITORING · VERIFIED 2026-08-25

Apache-2.0 · TypeScript servers · how we verify → /methodology

01 · Install SandBase Harness

before you install - you'll need

Set MANAGED_AGENTS_URL, MANAGED_AGENTS_API_KEY before connecting.

Docker

docker run -i --rm ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.4

Claude Desktop - add to config

{
  "mcpServers": {
    "sandbaseai-sandbase-harness": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.4"
      ]
    }
  }
}

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as container (OCI image) - can be sandboxed away from your filesystem

repo age created 2026-07-11 - young repo, little track record yet

license Apache-2.0 - declared in the repository

registry namespace io.github.sandbaseai is GitHub-verified and matches the repo owner

03 · What SandBase Harness can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.3.7 · 2026-08-20

DeepSeek Harness clean-profile fix · This release fixes the deterministic startup failures found while reproducing dshbase L3 verification. · Fixed · Optional MCP environment variables remain string-valued when unset…

v0.3.6 · 2026-08-20

Operations Console hotfix · SandBase Harness v0.3.6 restores the documented operations API and makes the advanced Console screens usable from the primary application shell. · Fixed · /v1/webhooks…

v0.3.5 · 2026-08-20

SandBase Harness v0.3.5 - portable Skills compatibility and instant evaluation · This release makes Agent Skills compatibility visible end to end and shortens the path from repository visit to a running local Console.…

04 · Who maintains SandBase Harness

SandBase Harness is maintained by sandbaseai. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/sandbaseai/sandbase-harness
category: DevOps & monitoring - ranked #36 of 101 actively-maintained DevOps & monitoring servers as of 2026-08-25.
release cadence: 8 releases in the last 90 days (latest 2026-08-20)
registry: io.github.sandbaseai/sandbase-harness (active, first published 2026-08-19)
packages: oci:ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.4

06 · SandBase Harness FAQ

What is SandBase Harness?

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.

Is SandBase Harness still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-23 and it shipped 8 releases in the last 90 days. We re-verify nightly.

How do I install SandBase Harness?

Run `docker run -i --rm ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.4`. The README documents 2 environment variables (MANAGED_AGENTS_URL, MANAGED_AGENTS_API_KEY) to set first. Set MANAGED_AGENTS_URL, MANAGED_AGENTS_API_KEY before connecting. You can also paste the ready-made client config above.

07 · Alternatives to SandBase Harness

Alternatives to SandBase Harness

Maintained DevOps & monitoring servers if SandBase Harness isn't the fit.

Pairs well with

Servers that cover what SandBase Harness doesn't - only shown when the pairing reason fits the companion.

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