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Harness MCP Server

@harness

Repository

Basic information

Category

Other

License

MIT

Transports

stdio

Auth

oauth

Author

harness

Submitted by

Rohan Gupta

About Harness MCP Server

This is the official repo for the Harness MCP server

#mcp-server#automation#developer-tools

Harness MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "harness-mcp": {
      "url": "https://mcp.harness.io/mcp",
      "auth": {
        "CLIENT_ID": "mcp-client"
      }
    }
  }
}

Harness MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

This server requires authentication. Tool discovery may require signing in or credentials from the provider.

Fetch the live tool list directly from this server's endpoint using the button above.

Overview

What is Harness MCP Server?

Harness MCP Server is an MCP (Model Context Protocol) server that gives AI agents full access to the Harness.io platform through 11 consolidated tools and 212 resource types. It is built for developers and platform engineers who want to interact with Harness CI/CD, GitOps, Feature Flags, Cloud Cost Management, and more via natural language.

How to use Harness MCP Server?

Provide a Harness API key (PAT or SAT) and run the server with npx harness-mcp-v2@latest (no install required) or install globally via npm install -g harness-mcp-v2. Use stdio transport for local clients (Claude Desktop, Cursor, Devin Desktop) or HTTP transport for remote/shared deployments. Optionally set HARNESS_ORG and HARNESS_PROJECT for default scope; the agent can also discover orgs and projects dynamically.

Key features of Harness MCP Server

  • 11 tools, 212 resource types via registry-based dispatch
  • 32 pre-built prompt templates for common workflows
  • Covers CI/CD, GitOps, Feature Flags, Cloud Cost, Security Testing, and more
  • Multi-project workflows with dynamic org/project discovery
  • Zero-config start – just provide a Harness API key
  • Extensible by adding declarative data files – no new tool registration needed

Use cases of Harness MCP Server

  • Build and deploy applications end-to-end across multiple projects
  • Debug failed pipelines and triage security vulnerabilities
  • Review DORA metrics and optimize cloud costs
  • Plan and execute feature flag rollouts
  • Audit access control and approve pending pipelines

Frequently asked questions

1

What do I need to get started with Harness MCP Server?

You need a Harness API key (PAT or SAT) created from your Harness account profile. No other credentials are required—the account ID is auto‑extracted from the token.

2

What authentication methods does Harness MCP Server support?

For local/self‑hosted use, it uses `HARNESS_API_KEY`. The hosted MCP service uses Harness Platform OAuth (not `HARNESS_API_KEY`) and must be enabled by Harness Support.

3

Can I run Harness MCP Server remotely or in a shared deployment?

Yes, use the HTTP transport. Set `HARNESS_MCP_AUTH_TOKEN` for shared or remotely reachable deployments. The server exposes endpoints like `/mcp` (JSON‑RPC and SSE) and `/health`. Multi‑user mode allows each session to authenticate with its own Harness API key.

4

What Harness resources does the server cover?

It provides 37 default toolsets covering CI/CD, GitOps, Feature Flags, Cloud Cost Management, Security Testing, Chaos Engineering, Database DevOps, Internal Developer Portal, Software Supply Chain, Infrastructure as Code Management, Governance, Service Overrides, and Knowledge Graph. Opt‑in Ansible coverage is also available.

5

Where does my data live when using Harness MCP Server?

All data is fetched from the Harness.io platform API. The server does not store data; it only proxies requests to Harness endpoints using the credentials provided.

Comments

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