io.github.rarasAI/raras — Raras Disease Twin MCP Server
Raras is a Model Context Protocol (MCP) server that exposes Brazil’s rare-disease knowledge graph (10,468 diseases) via a remote, read-only HTTP endpoint. It provides addressable Disease Twin resources and returns source-grounded biomedical details in PT-BR, while explicitly stating it never diagnoses.
🛠️ Key Features
- Disease twin resources:
disease://{orphaCode} - Includes genes, HPO phenotypes, and SUS coverage
- Provides clinical trials and literature-mined treatments
- Supports repurposing hypotheses and grounded multi-hop reasoning
- PT-BR, source-grounded, never diagnosing
- 21 tools exposed via MCP
🚀 Use Cases
- Retrieve structured rare-disease knowledge for exploration
- Connect clinical trial and treatment information to disease-specific context
- Use multi-hop reasoning outputs to support literature-grounded investigation
⚡ Developer Benefits
- MCP-compatible access to a large disease graph (10,468)
- Streamable, public HTTP transport:
https://raras.org/api/mcp - Read-only design suitable for retrieval workflows
⚠️ Limitations
- Public, read-only endpoint (no installation mentioned beyond MCP connection)
- No diagnostic capability (“never diagnoses”)