HCS (Hashgraph Consensus Service)

What is HCS (Hashgraph Consensus Service)?

HCS (Hashgraph Consensus Service) is an AI APIs tool that provides open infrastructure for AI agents with standards, registry, and developer tools. HCS (Hashgraph Consensus Service) is freemium: it has a free plan, and paid plans start at $15/month. A free trial is available. It is available on macOS. It is aimed at developers, ai researchers and enterprise teams.

HOL builds open infrastructure for AI agents, including a universal registry for discovery, HCS standards, developer tools, partner working groups, and auditable points on Hedera. It supports trustless P2P communication and cross-protocol bridging with 187K+ verified agents.

Built for developers, ai researchers and enterprise teams.

Key capabilities

• Agents

Features

• Agent Registry

  Registry for AI agents with discovery and verification.

• HCS Standards

  Open standards for agent identity and trustless communication.

• Policy Routing

  Allows policy outcomes like allow, observe, ask, and block.

• MCP Inspection

  Inspects MCP, skill, plugin, and package compatibility.

• Layered Policy

  Supports layered local and team policies for control.

• Compatibility Claims

  Explicitly states stable versus alpha compatibility.

• Runtime Interception

• Policy Enforcement

• Evidence and History

• Supply-Chain Protection

Use cases

• Route policies with allow, observe, ask, and block outcomes
• Inspect MCP, skill, plugin, and package compatibility
• Enforce layered local and team policies for control
• Intercept actions at runtime for monitoring and control
• Track evidence and historical data for transparency
• Protect against supply chain vulnerabilities

Pros & cons

Pricing

Freemium — paid plans start at $15/month. Free trial available.

Integrations

• Slack
• GitHub
• Jira

Developer & API

FAQ