Who should use Agent Harnesses?

Agent Harnesses is an open-source project built for AI developers and agents building or evaluating agent harnesses.

Is Agent Harnesses free?

Yes — Agent Harnesses is open source under the Open Source license and free to use.

What platforms does Agent Harnesses run on?

Agent Harnesses runs on the web and the command line. It can also be self-hosted.

Is Agent Harnesses still active?

Unverified. Agent Harnesses has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Agent Harnesses?

Similar projects tracked by PulseGate include agent-harnesses-mcp, subagent-harness-mcp, and agent-security-harness.

Who makes Agent Harnesses?

Agent Harnesses is developed by Ryan Alberts.

Is Agent Harnesses open source?

Yes — Agent Harnesses is open source under the Open Source license.

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Agent Harnesses

Name: Agent Harnesses
Author: Ryan Alberts

github.comInfrastructure

Agent Harnesses is an open-source curated and ranked catalog of more than 100 AI agent harnesses. It provides machine-readable JSON and llms.txt data plus an MCP server so developers and AI agents can discover and recommend tools.

Open SourceWebCLISelf-hosted

Visit github.com

Overview

6 features

In the Frameworks & runtimes space, Agent Harnesses takes a focused approach. Finding, comparing, and recommending suitable AI agent harnesses from a ranked, machine-readable catalog. It is built as an open-source project for AI developers and agents building or evaluating agent harnesses. The project is open source (Open Source). Agent Harnesses is available on the web and the command line, and it can be self-hosted.

Ryan Alberts builds and maintains Agent Harnesses. Key capabilities include ranked catalog, weekly rescoring, and MCP server. It exposes integrations via an MCP server.

Summary written by a language model from the project’s public pages.

Ranked catalog
Weekly rescoring
MCP server
JSON export
llms.txt feed
Agent recommendations

Built with & integrations

AI providers

multiple

Connectors

MCP

Runs on

BrowserCLISelf-hosted

Detected from

multiple: bLangChain in the HTML · bvercel/ai in the HTML

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed9 Sept · 22:06 UTC
io.github.RyanAlberts/agent-harnesses verified via MCP Registry (official)
Source: MCP Registry (official) · Open

Frequently asked questions about Agent Harnesses

What does Agent Harnesses do?: Finding, comparing, and recommending suitable AI agent harnesses from a ranked, machine-readable catalog. It is catalogued under Frameworks & runtimes on PulseGate.
Who should use Agent Harnesses?: Agent Harnesses is an open-source project built for AI developers and agents building or evaluating agent harnesses.
Is Agent Harnesses free?: Yes — Agent Harnesses is open source under the Open Source license and free to use.
What platforms does Agent Harnesses run on?: Agent Harnesses runs on the web and the command line. It can also be self-hosted.
Is Agent Harnesses still active?: Unverified. Agent Harnesses has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Agent Harnesses?: Similar projects tracked by PulseGate include agent-harnesses-mcp, subagent-harness-mcp, and agent-security-harness.agent-harnesses-mcp subagent-harness-mcp agent-security-harness
Who makes Agent Harnesses?: Agent Harnesses is developed by Ryan Alberts.
Is Agent Harnesses open source?: Yes — Agent Harnesses is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: CLI · Web
Languages: English
License: Open Source
First seen: 9 Sept 2026
Built for: AI developers and agents building or evaluating agent harnesses
Model: Open source
Solves: Finding, comparing, and recommending suitable AI agent harnesses from a ranked, machine-readable catalog.

Developer

Ryan Alberts

Index record

Indexed: 9 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 9 Sept 2026

Identity audit (13)

Slug: io-github-ryanalberts-agent-harnesses-github-com
Lifecycle state recorded: 9 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 9 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 9 Sept 2026
Canonical URL: https://github.com/RyanAlberts/best-of-Agent-Harnesses

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