Harness

MCP server · installable · v0.4.20 · ai.autonomous.harness/harness

NEW · 2h agoSeen in the registry 4m ago

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What it does

Harness is an MCP server, a connector that lets an AI assistant use it as a tool. It is installed locally as a package and runs on your machine.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence) and are not a test of the tool.

At a glance

Hosted (remote)NO

Local installYES

Version0.4.20

PackagesMCP bundle, npm

PriceNot in the registry

First seen19 Oct 2026

Last checked4m ago

How to connect

As declared in the Official MCP Registry · not tested by Electra Index

Install packages

MCP BUNDLE https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb · runs locally (stdio)
NPM @autonomous-ai/harness-mcp v0.2.0 · runs locally (stdio)

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "harness-1": {
      "command": "npx",
      "args": [
        "-y",
        "@autonomous-ai/harness-mcp"
      ]
    }
  }
}

Facts & evidence

Each fact shows where it was seen and when.

Fact	Value	Evidence	Source	Last confirmed
Install package	https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb, @autonomous-ai/harness-mcp	DECLARED	SRC-001 Official MCP Registry	4m ago
Version	0.4.20	DECLARED	SRC-001 Official MCP Registry	4m ago
Package registries	mcpb, npm	DECLARED	SRC-001 Official MCP Registry	4m ago
Local install (package)	yes	DECLARED	SRC-001 Official MCP Registry	4m ago
Remote access (hosted)	no	DECLARED	SRC-001 Official MCP Registry	4m ago
Website	https://harness.autonomous.ai/agents	DECLARED	SRC-001 Official MCP Registry	4m ago
Repository	https://github.com/autonomous-ai/openharness	DECLARED	SRC-001 Official MCP Registry	4m ago
Registry status	active	DECLARED	SRC-001 Official MCP Registry	4m ago
MCP server	yes	DECLARED	SRC-001 Official MCP Registry	4m ago

Change history

NEW19 Oct 2026
first seen in the index

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Questions about Harness

How do I connect Harness?

Install the MCP bundle package https://github.com/autonomous-ai/openharness/releases/download/v0.4.20_cli/harness-mcp.mcpb. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.