Every ClawHub roundup covers the same names: GitHub, Gog, Agent Browser, Capability Evolver. Those are worth their install counts. But a second tier of skills — each with 8,000 to 27,000 downloads — barely gets mentioned despite solving real problems. Here are five of them.
Ontology: A Typed Knowledge Graph for Your Agent
Ontology (27,600 downloads) is one of the most interesting underreported skills on ClawHub. Rather than treating memory as a flat collection of notes or a vector database, Ontology gives your agent a typed knowledge graph — structured entities with defined relationships between them. Think “Person connects to Company through Role, Company produces Product, Product has Dependency” rather than “here are some facts in a file.”
The practical upside is that the agent can reason about relationships, not just recall facts. For anyone building an agent that needs to track a project, an organization, a codebase, or any domain with interconnected entities, this is meaningfully more powerful than MEMORY.md. At 27,600 downloads it is clearly finding an audience — it just rarely makes the featured lists.
npx clawhub@latest install ontologyAPI Gateway: OAuth to 100+ Services, Managed
API Gateway (13,000 downloads) eliminates one of the most tedious parts of connecting an agent to third-party services: OAuth setup. It provides managed token refresh for 100+ APIs — Stripe, Salesforce, HubSpot, and dozens more — handling the authentication layer so your agent can call these services without you manually managing credentials, expiry, and refresh flows.
For anyone building agents that need to touch business software — CRM data, payment records, marketing platforms — this is the skill that removes the infrastructure work and lets you focus on what the agent actually does with the data. It is essentially a managed API middleware layer as a single ClawHub install.
npx clawhub@latest install api-gatewayMcporter: Install MCP Servers From Inside OpenClaw
Mcporter (11,100 downloads) solves a specific but important workflow problem: installing and managing MCP servers without leaving OpenClaw. Rather than switching to a terminal, finding the right MCP package, configuring it manually, and restarting your agent, Mcporter lets you do all of that through a conversation with your agent.
As the MCP ecosystem grows — more services publishing MCP servers, more OpenClaw users wanting to connect to them — having a skill that manages that installation layer from within the agent runtime becomes increasingly useful. It is the skill equivalent of a package manager for your package manager.
npx clawhub@latest install mcporterHimalaya: Email That Works With Any Provider
Himalaya (9,200 downloads) is the email skill for people who do not want to be locked into Gmail or Outlook. It uses IMAP/SMTP — the universal email protocols — which means it works with any email provider: Fastmail, Proton, self-hosted mail servers, or anything else. Where the Gmail-specific skills require Google authentication and work only within Google’s ecosystem, Himalaya is provider-agnostic by design.
For privacy-focused users or anyone running their own mail server, this is the obvious choice. For everyone else, it is worth knowing about as a fallback when provider-specific skills create friction.
npx clawhub@latest install himalayaSkill Vetter: Scan Before You Install
Skill Vetter (3,500 downloads) should probably be the first skill anyone installs, not the last. It scans ClawHub skills for malicious code before installation — flagging undeclared environment variables, hidden network calls, and obfuscated commands that static malware scanners might miss.
Given the ClawHavoc incident earlier this year — 341 skills distributing Atomic Stealer, 9,000+ installations compromised before the registry cleanup — having a vetting layer before you run clawhub install on an unfamiliar skill is straightforward risk reduction. ClawHub’s VirusTotal partnership helps, but Skill Vetter adds a second pass focused specifically on the OpenClaw attack surface: prompt injection markers, suspicious tool registrations, and patterns specific to how ClawHub skills operate.
Its relatively modest download count (3,500) compared to the skills it is designed to protect you from installing is a gap worth closing.
npx clawhub@latest install skill-vetterOne More: Nano Banana Pro
Quickly worth mentioning: Nano Banana Pro (13,400 downloads) brings image generation and editing via the Gemini 3 Pro API directly into OpenClaw. For anyone using image generation in their workflows who wants an alternative to DALL-E or Midjourney — or who is already in the Google ecosystem — this is a clean integration with a surprisingly large install base for a creative skill.
npx clawhub@latest install nano-banana-pro
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