Build With Claude vs OpenViking: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Build With Claude and OpenViking — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
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Build With Claude
Dave Poon
A plugin marketplace and discovery hub for Claude Code to browse, install, and contribute agents, commands, hooks, skills, and plugin collections.
Key features
- Plugin Marketplace & Discovery: A web UI and index where users can browse curated plugins, agents, commands, hooks, skills, and bundled plugin collections for Claude Code.
- Community Indexing: Aggregates and indexes thousands of community resources (reported repository metrics include 20k+ community plugins, 4,500+ MCP servers, and 1,100+ external marketplaces) to surface third-party integrations and reusable components.
- Plugin Format & Validation: Defines standardized formats for Agents, Commands, and Hooks and provides contributing guidelines and npm test-based validation to ensure plugins meet repository conventions.
- Hooks & Event Automation: Supports hooks that run automatically on events (e.g., PreToolUse, PostToolUse, session start, tool calls) to enable event-driven automation like notifications, git operations, or formatting.
- Curated Collections & Packaging: Maintains curated collections and bundled plugin packages by category to help teams adopt opinionated stacks of agents and skills quickly.
- Integration with Claude Ecosystem: Designed to extend Claude Code, Claude Desktop, the Agent SDK, and OpenClaw, enabling seamless installation and use across developer surfaces.
- Web UI and CLI Workflow Support: Offers a web UI at buildwithclaude.com for discovery and documentation, plus repository-supplied assets and quickstart guidance for installing and using plugins within Claude Code workflows.
- Browse and search curated collections of Agents, Commands, Hooks, Skills, and Plugins via web UI (buildwithclaude.com)
- Repository of bundled plugin packages and community-discovered plugins with metadata and README documentation
- Support for plugin formats (agents, commands, hooks) with contribution guidelines and validation tests
- Integration references and documentation links for Claude Code, Agent SDK, Claude Desktop, and OpenClaw
- Indexes large external ecosystem: 20k+ community plugins, 4,500+ MCP servers, 1,100+ plugin marketplaces (community-sourced counts)
- Hooks system: event-driven automation for events like tool calls and session start
- CLI/Web/UI workflows: quickstart snippets, install instructions, and examples for using marketplace plugins
- Repository contains CI workflows, Dockerfile, tests, and web-ui source for building and deploying the marketplace
- Open-source MIT license enabling free use and community contributions
- Contributor tooling and build steps (bun, tauri, Rust, Cargo) and platform build guidance included in related repos
Best for
- Extending Claude Code Workflows: Install agent plugins and commands to automate common development tasks like generating commits, creating documentation, or running tests from within Claude Code.
- Assembling Specialized Agents: Combine curated agent skills (e.g., Python, DevOps, Security) to create domain-specific experts for code reviews, vulnerability scanning, or automated refactoring.
- Event-Driven Automation: Use hooks to trigger workflows on session start or tool calls—e.g., auto-formatting code, posting notifications, or syncing changes to issue trackers.
- Team Marketplaces and Collections: Create and share bundled plugin collections for a team or organization to standardize agent capabilities and onboarding.
- Discovering Community Integrations: Search the aggregated index to find plugins that add tool integrations (databases, APIs, CLIs) or MCP servers to enrich agent context and capabilities.
- Contribute and Publish Plugins: Follow repository contributing guidelines to add new agents, commands, or hooks, validate them with provided tests, and publish them to the community marketplace.
- Discover and install Claude Code agents to extend coding assistants for domain-specific workflows (DevOps, Security, Language-specific experts)
- Add slash commands and automation (e.g., /commit, /docs, /tdd) to streamline developer tasks
- Create and attach hooks for event-driven integrations (notifications, git operations, formatting) in Claude sessions
- Aggregate and reuse skills across projects to share capabilities between agents and workflows
- Integrate marketplace plugins into CI/CD pipelines, IDEs (VS Code, JetBrains), and terminals for automated code tasks
- Serve as a community index for integrating external MCP servers and marketplace collections into Claude ecosystems
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OpenViking
Volcano Engine
OpenViking is an open-source context database that stores agent memories, resources, and skills as one browsable virtual filesystem.
Key features
- Viking:// Virtual Filesystem: Memories, resources, and skills each receive a URI in one unified namespace, so agents browse context with ls, tree, and find instead of querying a black-box store.
- Three-Tier Context Layers: Each entry is written as an L0 abstract, L1 overview, and L2 full detail, letting an agent judge relevance cheaply and load full data only when needed.
- Directory Recursive Retrieval: Vector search locates the highest-scoring directory first and then descends layer by layer, so retrieved fragments keep their surrounding context.
- Observable Retrieval Trajectories: Every query records the directory-browsing path it took, so an incorrect result can be traced back to the exact decision that produced it.
- Sessions Become Memory: After a session commits, user preferences and agent experience are asynchronously extracted into long-term memory without blocking the agent.
- OpenViking Studio Playground: A hosted browser demo lets you explore the database and retrieval behavior with no local installation.
- Published Benchmark Results: Evaluated on LoCoMo long-conversation memory and tau2-bench multi-turn agent tasks, with reproduction scripts included in the repository.
Best for
- Long-Term Agent Memory: Give a coding or assistant agent persistent recall of user preferences and past sessions across long-running conversations.
- Reducing Token Spend: Teams paying for oversized context windows load L0 abstracts for triage and pull L2 detail only for the entries that matter.
- Debugging Bad Retrievals: Engineers inspect the recorded browsing trajectory to find out why an agent surfaced the wrong document instead of guessing at embedding behavior.
- Knowledge Base Question Answering: Serve structured organizational knowledge to agents with directory-level context preserved around every answer.
- Skill and Resource Management: Store reusable agent skills alongside memories and documents in one addressable namespace instead of separate systems.
- Upgrading Existing Agent Frameworks: Drop OpenViking behind agents like Claude Code or OpenClaw to raise long-context accuracy without rewriting the agent.