SandBase Harness MCP Server
by sandbaseaiio.github.sandbaseai/sandbase-harnessv0.3.8
Stdio MCP bridge for SandBase Harness agents, sessions, turns, artifacts, and cancellation.
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Active1d ago
Install SandBase Harness MCP server
Install in Claude Code
claude mcp add sandbase-harness -e MANAGED_AGENTS_URL='<managed-agents-url>' -e MANAGED_AGENTS_API_KEY='<managed-agents-api-key>' -- docker run -i --rm -e MANAGED_AGENTS_URL -e MANAGED_AGENTS_API_KEY ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8Install in Cursor
{
"mcpServers": {
"sandbase-harness": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"MANAGED_AGENTS_URL",
"-e",
"MANAGED_AGENTS_API_KEY",
"ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8"
],
"env": {
"MANAGED_AGENTS_URL": "<managed-agents-url>",
"MANAGED_AGENTS_API_KEY": "<managed-agents-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"sandbase-harness": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"MANAGED_AGENTS_URL",
"-e",
"MANAGED_AGENTS_API_KEY",
"ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8"
],
"env": {
"MANAGED_AGENTS_URL": "<managed-agents-url>",
"MANAGED_AGENTS_API_KEY": "<managed-agents-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"sandbase-harness": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"MANAGED_AGENTS_URL",
"-e",
"MANAGED_AGENTS_API_KEY",
"ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8"
],
"env": {
"MANAGED_AGENTS_URL": "<managed-agents-url>",
"MANAGED_AGENTS_API_KEY": "<managed-agents-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"sandbase-harness": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"MANAGED_AGENTS_URL",
"-e",
"MANAGED_AGENTS_API_KEY",
"ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8"
],
"env": {
"MANAGED_AGENTS_URL": "<managed-agents-url>",
"MANAGED_AGENTS_API_KEY": "<managed-agents-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| MANAGED_AGENTS_URL | yes | — | URL of the SandBase Harness runtime API. |
| MANAGED_AGENTS_API_KEY | — | yes | API key when the connected Harness runtime requires authentication. |
Freshness
Active — last maintenance signal 1d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-09 · 1d ago · GitHub
Latest release
2026-08-30 · 41d ago · GitHub · v0.3.8
Package published
no data · npm/PyPI
Registry entry updated
2026-08-30 · 41d ago · official registry · v0.3.8
FAQ
›How do I install the SandBase Harness MCP server in Claude Code?
Run: claude mcp add sandbase-harness -e MANAGED_AGENTS_URL='<managed-agents-url>' -e MANAGED_AGENTS_API_KEY='<managed-agents-api-key>' -- docker run -i --rm -e MANAGED_AGENTS_URL -e MANAGED_AGENTS_API_KEY ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does SandBase Harness require an API key?
Yes. It expects MANAGED_AGENTS_URL, MANAGED_AGENTS_API_KEY, of which 1 is a secret.
›Can I use SandBase Harness as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is SandBase Harness in the official MCP registry?
Yes, as io.github.sandbaseai/sandbase-harness.