The coordination layer
for AI-agent infrastructure.
The HOL partner program is an invite-only cohort of companies building open standards for registries, identity, payments, privacy, and communication, working together to define the foundation of the agent ecosystem.
Reviewed within 48 hours · Invite-only program
As part of the Hiero Project under Linux Foundation Decentralized Trust, HOL maintains the Hiero Consensus Specifications.
The window for
standards is open.
Without shared standards, every company building AI-agent infrastructure pays the cost of fragmentation — in security, interoperability, and user trust. HOL brings the right builders together early as a signal layer for the category.
Fragmentation is expensive
Every company building AI-agent infrastructure pays the cost of incompatible standards — in security gaps, integration overhead, and user trust.
The window is now
AI-agent infrastructure is being defined right now. Standards established today will shape the category for the next decade.
Coordination beats competition
The companies that build shared standards together win the long-term market. HOL provides the neutral ground for that coordination.
30+ companies,
one shared mission.
Registries & Identity
Payments & Commerce
Privacy, Security & Trust
Communication & Governance
Tooling & Applications
Companies building
the agent stack.
This program is for infrastructure builders, protocol designers, and tooling teams — not general-purpose enterprise software. If you are building a layer that AI agents depend on, you belong here.
More reach,
more influence.
Standards leadership
Co-author the specifications that define the agent ecosystem.
Early access
Shape reference implementations before they reach broad adoption.
Network effects
Connect with other infrastructure builders across the stack.
Technical influence
Provide feedback that directly shapes open-source deliverables.
Market signal
Signal to customers and partners that you build on shared standards.
Ecosystem reach
Your work reaches the broader HOL ecosystem of developers and companies.
Four standing
subcommittees.
Partners join subcommittees to identify standards gaps, form working groups, and produce deliverables — from specifications and reference implementations to technical feedback and contributions to other open standards.
Partner discussions inform specifications, reference implementations, and technical contributions that live in open repositories, including the Hiero Consensus Specifications maintained by HOL.
Agent Registries
Standards for agent listings, metadata, discovery, registry interoperability, and trust signals.
Agentic Payments
Standards for agent payments, payment intents, receipts, authorization, and settlement flows.
AI Privacy & Security
Standards for safe deployment, risk reduction, privacy-preserving infrastructure, and trust frameworks.
Inter-Agent Communication & Governance
Standards for agent messaging, handshakes, task exchange, routing, and multi-agent coordination.
Universal agent
infrastructure.
The HOL Registry Broker is a live universal index and routing layer for AI agents. It indexes across seven protocols without requiring participation, routes every interaction through the right adapter, and surfaces the full network through three production-ready developer surfaces.
Builder workflows
Discover
Keyword and semantic search across every indexed agent. Filter by protocol, capability, or adapter origin.
Delegate
Route a task to the most capable available agent. The broker matches, ranks, and returns ranked candidates.
Register
Get a quote, submit an HCS-11 registration, and receive a UAID in one structured workflow — no manual steps.
Interact
Open chat sessions, send encrypted or plaintext messages, and relay across protocol boundaries through a single API.
Developer surfaces
Registry Skills
Claude · Codex · Cursor · OpenClaw
Skill definitions that teach any AI coding assistant how to search, register, and chat through the HOL Registry Broker API. Consumable as MCP context, project instructions, or native skill format.
RB Client
Typed REST client · TypeScript
The typed TypeScript client powering both Registry Skills and the Codex plugin. Covers every broker endpoint — discovery, registration, chat, delegation, and analytics — with full type safety.
Codex Plugin
OpenAI Codex · MCP stdio · delegate · summon
Adds four broker tools to Codex: delegate, findAgents, summonAgent, and sessionHistory. Returns a structured recommendation — delegate-now, review-shortlist, or handle-locally — on every task.
Open standards
From consideration
to collaboration.
Request consideration
Tell us what layer of the agent stack your company is building. HOL reviews requests within 48 hours.
Align
If there is a strong mutual fit, we will reach out to align on category, cohort fit, and standards goals.
Collaborate
Join subcommittees, publish content, contribute to standards, and coordinate with partners.
HCS standards
for agent infrastructure.
Production-ready protocols for the autonomous internet
File Storage & Retrieval
On-chain file storage and content-addressed retrieval system
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