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LangChain is an excellent framework — but its tools only work within LangChain. Jarvis SDK is a universal marketplace that works with any agent, any framework, any language.
| Feature | Jarvis SDK | LangChain Hub |
|---|---|---|
| Framework Lock-in | None — works with any agent | LangChain framework required |
| Tools Available | 695 executable + 1,000+ directory | 80+ community tools |
| Discovery | 5 protocols (REST, MCP, A2A, llms.txt, OpenAPI) | Python import only |
| Execution | HTTP API — any language | Python runtime only |
| Trust Scoring | Automated quality + certification | Community reviews only |
| Self-Equip | AI-powered mission-to-toolkit matching | Manual tool selection |
| Observability | OpenTelemetry tracing built-in | LangSmith ($29+/mo separate) |
| Community Size | Growing | 90K GitHub stars, 50K Discord |
| Documentation | Good | Excellent (best in class) |
| Ecosystem | Universal — indexes all ecosystems | LangChain-only |
| Skills/Workflows | Composable skills + workflow engine | Chains (code-only) |
| Pricing | Free tier, $29/mo Pro | Open source (LangSmith paid) |
You don't want to be locked into one framework. Jarvis SDK tools work via HTTP API — use them from Python, TypeScript, Go, Rust, or any language. Plus search 1,000+ tools from LangChain, CrewAI, Composio, and more in one directory.