Introduction
Valency Bond™ is a Model Context Protocol (MCP) server that connects AI assistants to preprints from arxiv, biorxiv, medrxiv, pubmed, and more. It allows Claude, the Gemini CLI, ChatGPT, and other MCP-compatible assistants to search, retrieve, and analyze research papers.
How it works
Section titled “How it works”- You connect your AI assistant to Valency Bond using OAuth (sign in with Google or email)
- You ask questions like "Find papers about transformer architectures" or "Search for climate change research from 2024"
- Valency searches tens of millions of papers and returns relevant results
- Your AI assistant analyzes and summarizes the findings
Supported platforms
Section titled “Supported platforms”| Platform | Status | Auth Method |
|---|---|---|
| Claude.ai | ✅ Supported (recommended) | OAuth |
| Claude Desktop | ✅ Supported | OAuth |
| Claude Code CLI | ✅ Supported | OAuth |
| Gemini CLI | ⚠️ Gemini Code Assist plans only | OAuth |
| ChatGPT | ✅ Supported (experimental) | OAuth |
| ChatGPT Desktop (incl. Codex) | ✅ Supported | OAuth |
| Codex CLI | ✅ Supported | OAuth |
| Direct API | ✅ Supported | Bearer token |
Prerequisites
Section titled “Prerequisites”Before you begin, you'll need:
- A Valency account — sign up at app.valency.io/onboard
- One of the supported AI platforms (Claude, Gemini, or ChatGPT)
Next steps
Section titled “Next steps”Ready to get started? Head to the Claude setup guide to connect your first platform.