Harness
Rank #268ai.autonomous.harness/harness
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What you can do with Harness
Harness is a Model Context Protocol (MCP) server published by autonomous-ai. It ranks #268 of 176,402 active servers on MCP Toplist, and its repository has 1,442 GitHub stars. Harness is listed on Official MCP, with 2 tracked versions. It was first listed on Oct 5, 2026 and most recently updated on Oct 19, 2026.
Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.
What Harness can and cannot do
Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.
What you need before using Harness
The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.
Declared by the Official MCP Registry, last synced Nov 14, 2026. Not independently verified by MCP Toplist.
No runtime, credential or payment requirements are recorded for this server beyond the declaration above.
Connect Harness and confirm it works
claude mcp add harness -- npx -y @autonomous-ai/harness-mcpPublished as mcp bundle `https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb` — install it through your client’s extension manager.
[mcp_servers.harness]
command = "npx"
args = ["-y", "@autonomous-ai/harness-mcp"]Add to ~/.codex/config.toml.
Published as mcp bundle `https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb` — install it through your client’s extension manager.
{
"mcpServers": {
"harness": {
"command": "npx",
"args": [
"-y",
"@autonomous-ai/harness-mcp"
]
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config).
Published as mcp bundle `https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb` — install it through your client’s extension manager.
{
"mcpServers": {
"harness": {
"command": "npx",
"args": [
"-y",
"@autonomous-ai/harness-mcp"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).
Published as mcp bundle `https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb` — install it through your client’s extension manager.
{
"servers": {
"harness": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@autonomous-ai/harness-mcp"
]
}
}
}Save as .vscode/mcp.json in your workspace.
Published as mcp bundle `https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb` — install it through your client’s extension manager.
{
"mcpServers": {
"harness": {
"command": "npx",
"args": [
"-y",
"@autonomous-ai/harness-mcp"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Published as mcp bundle `https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb` — install it through your client’s extension manager.
{
"mcpServers": {
"harness": {
"command": "npx",
"args": [
"-y",
"@autonomous-ai/harness-mcp"
]
}
}
}Published as mcp bundle `https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb` — install it through your client’s extension manager.
After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.
What changed, and when this was checked
- First listed
- Oct 5, 2026
- Latest version published
- Oct 19, 2026
- Version history
- 2 versions tracked (below)
- Requirements evidence
- Declared by the Official MCP Registry, last synced Nov 14, 2026. Not independently verified by MCP Toplist.
- Profile checked
- Not yet — purpose, capabilities and requirements above come from registry data only
- Ranking data as of
- Oct 19, 2026
- Official MCP ↗listed since Oct 19, 2026 · still listed
Do you maintain Harness? to show as its verified maintainer and add your own summary, sign-in details and links. The rest of this page is read from the registry listings and from MCP Toplist's own connection check.
Available versions (2)
| Version | Published |
|---|---|
| 0.4.20 | Oct 19, 2026 |
| 0.4.19 | Oct 19, 2026 |
Ranks ahead of 176,134 of 176,402 servers on MCP Toplist.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/ai.autonomous.harness%2Fharness)<a href="https://mcptoplist.com/server/ai.autonomous.harness%2Fharness"><img src="https://mcptoplist.com/badge/ai.autonomous.harness%2Fharness.svg" alt="MCP Toplist: Top 1% of 176,402" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Who maintains Harness?
- Harness is maintained by autonomous-ai, which publishes 1 MCP server (2 total versions) tracked on MCP Toplist.
- Is Harness listed on the Official MCP Registry?
- Yes — Harness is listed on the Official MCP Registry.
- How many versions does Harness have?
- MCP Toplist tracks 2 versions of Harness, most recently published on Oct 19, 2026.
- Where can I find the source code for Harness?
- The source code for Harness is hosted at github.com/autonomous-ai/openharness.
Do you run this server?
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