HOL
HOL (Hashgraph Online) is an open-source organization building interoperability infrastructure for AI agents. It develops open standards, registries, SDKs, reference implementations, and security tools for agent identity, discovery, communication, payments, privacy, provenance, and runtime safety, using Hedera Consensus Service where verifiable ordering and audit trails are useful.
At a Glance
- AI-agent developers and open-source maintainers
- Developers using Claude Code, Codex, Cursor, Gemini/Antigravity CLI, OpenCode, Kimi, Grok, Copilot CLI, and other agent runtimes
- Enterprises and security teams governing AI coding agents
- MCP server, plugin, skill, wallet, registry, and agent-tool builders
- +2 more
AI Tools by HOL
(1)
HOL Guard
Local Runtime Security for AI Agents
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Latest News
OpenMatter Network and HOL released proposed Zero-Knowledge Boundary Compliance for Autonomous Agents standards for verifiable AI compliance and agentic security.
HOL Guard 3.0 launched with Rust authority, extension-first controls, and documented harness contracts.
HOL announced CIGAR, a governed context runtime for AI agents, as a Honey Developer Preview.
HOL released the registry-broker 1.0.0 agent skill.
Products & Services
Open-source, local-first runtime security for AI coding agents; evaluates supported tool calls and artifacts, allows/asks/blocks actions, records security receipts, and optionally adds cloud synchronization, shared policy, alerts, fleet visibility, and team workflows.
Public catalog of AI coding plugins, skills, MCP servers, and apps across Claude Code, Codex, Cursor, Grok, Kimi Code, DeepSeek Harness, Antigravity CLI, OpenCode, and other runtimes, with publisher verification, trust signals, security scans, and install guidance.
Open-source CLI and GitHub Action for checking AI-agent plugins, skills, and MCP configurations for security and quality issues before publication.
API and SDK infrastructure for discovering and resolving AI agents across registries and protocols, including keyword/vector search, registration, chat, protocol hubs, and Universal Agent IDs.
Market Position
HOL positions itself as open, neutral interoperability and security infrastructure rather than a closed agent platform: Registry Broker competes with fragmented agent directories and protocol-specific registries; HOL Plugin Registry and Plugin Scanner address plugin/MCP supply-chain trust; HOL Guard overlaps with AI-agent runtime security and policy products such as Palo Alto Prisma AIRS and other agent security vendors, while emphasizing local-first enforcement, open source, and standards-based interoperability.
Leadership
Founders
Michael Kantor
President of HOL; founder of KiloScribe. Public profiles describe earlier work as a senior full-stack engineer and engineering lead at Finder.
Executive Team
Michael Kantor
President
Founder of KiloScribe; previously a senior full-stack engineer and engineering lead at Finder, according to public professional profiles.
Founding Story
HOL began with the HCS-20 Auditable Points Standard, created January 4, 2024, followed by HCS-1 and HCS-5/Hashinals work on March 5, 2024 by KiloScribe, Turtlemoon, SentX, and HashPack. The participating Hedera ecosystem organizations then formed Hashgraph Online DAO LLC, announced November 7, 2024, to create an open, fully on-chain internet around Hedera Consensus Service through standards, open-source development, and products and services.
Business Model
Revenue Model
Open-source core infrastructure is free to run. HOL funds work through annual sponsorships, paid advertising and directory placements, and optional HOL Guard Cloud subscriptions and enterprise support/evaluation.
Pricing Tiers
Free local runtime, approval prompts, local audit log, and local scanning; no account or credit card required.
Synced decision history for one developer across two devices; 30-day history and a 3-day trial are listed.
Cloud features including alerts, additional devices, and longer retention.
Shared policy, owner queues, investigation routing, and team audit visibility.
Annual sponsorship with linked logo, jointly reviewed blog announcement, and quarterly written updates.
Visibility package plus a sustained relationship and quarterly conversations with the HOL team.
Strategic package plus a tailored public AI-security initiative scoped with HOL.
Sponsored, featured, or always-featured directory placements; plugin sponsored rails can be priced from $200/month depending on placement.
Target Markets
- AI-agent developers and open-source maintainers
- Developers using Claude Code, Codex, Cursor, Gemini/Antigravity CLI, OpenCode, Kimi, Grok, Copilot CLI, and other agent runtimes
- Enterprises and security teams governing AI coding agents
- MCP server, plugin, skill, wallet, registry, and agent-tool builders
- Hedera, Hiero, Web3, and decentralized application ecosystem participants
- Organizations seeking open standards for agent privacy, trust, identity, and compliance
- Securing AI coding agents against destructive commands, secret access, malicious packages, and unsafe MCP or plugin changes
- Discovering, registering, and resolving AI agents and MCP servers across protocols
- Publishing and installing verifiable skills, plugins, and extensions
- Building interoperable agent identity, messaging, registry, trust, payment, and privacy systems
- Providing developers with relevant, cited context from private documents and code
- Enterprise governance, team policy, evidence, and compliance for AI-agent deployments
- GoDaddy
- Intuition
- Horizen Labs
- HashPack, Hgraph, SentX, KiloScribe, Turtlemoon, Builder Labs, LaunchBadge, HashGate, and Bonzo Finance