---
title: PolyOmics MCP Server
emoji: 🧬
colorFrom: blue
colorTo: indigo
sdk: gradio
sdk_version: 5.25.0
app_file: app.py
pinned: false
license: cc-by-4.0
short_description: MCP server for the PolyOmics polymer materials database
---

# PolyOmics MCP Server

MCP server for the [PolyOmics dataset](https://huggingface.co/datasets/yhayashi1986/PolyOmics).
Query physical property data for 100,000+ polymer materials from Claude and other MCP clients.

## Available Tools

| Tool | Description |
|------|-------------|
| `get_database_info` | Get overview statistics of the database |
| `search_polymers_by_smiles` | Search polymers by SMILES fragment |
| `get_polymer_by_id` | Get all properties for a polymer by monomer ID |
| `query_polymers_by_property` | Filter polymers by property value range |
| `filter_by_polymer_class` | Filter by polymer class (PEST, PAMD, etc.) |
| `get_chi_parameter` | Get Flory-Huggins χ parameter for a specific solvent |
| `get_chi_parameters_for_polymer` | Get χ parameters for all solvents at once |

## Connecting from Claude Desktop

Add the following to `claude_desktop_config.json`:

```json
{
  "mcpServers": {
    "polyomics": {
      "type": "sse",
      "url": "https://<your-username>-polyomics-mcp-server.hf.space/mcp/sse",
      "headers": {
        "Authorization": "Bearer <your-hf-token>"
      }
    }
  }
}
```

> **Note:** Replace `<your-username>` and `<your-hf-token>` with your actual values.
> Generate an HF token at [Settings > Access Tokens](https://huggingface.co/settings/tokens) (`read` permission is sufficient).

## Data Source

- **Dataset:** [yhayashi1986/PolyOmics](https://huggingface.co/datasets/yhayashi1986/PolyOmics)
- **License:** CC-BY 4.0
- **Paper:** arXiv:2511.11626