Lune Research: full-text paper search and evidence checking over MCP

[ttttonyhe]

Hi everyone,

We built Lune Research because research agents need stronger evidence than a general web search usually returns. Lune gives MCP clients a peer-reviewed paper corpus plus tools for inspecting and checking the evidence.

What the server exposes:

• Full-text hybrid search across papers from ML, NLP, computer vision, systems, and security venues
• Multi-query search with result fusion for literature sweeps
• Citation traversal in both directions
• Structured extraction across multiple papers
• Claim verification that returns the verbatim supporting or contradicting quote
• Evidence-sufficiency checks that identify gaps and suggest the next searches
• Curated guidance on experiment design, evaluation, reproducibility, writing, and reviewer responses
• Six reusable MCP prompts for literature review, related work, paper comparison, draft verification, citation tracing, and methodology questions

Connection details:

• Official Registry ID: com.luneresearch/lune
• Remote Streamable HTTP: https://mcp.luneresearch.com
• Local stdio: npx -y @retrograde-labs/lune-mcp-server
• Public source: https://github.com/RetrogradeLabs/lune-mcp-server
• Documentation: https://luneresearch.com/docs

The remote endpoint uses OAuth 2.1 with Dynamic Client Registration and RFC 9728 discovery. The stdio package accepts LUNE_API_KEY. A Lune account is required to access the corpus.

The hosted server supports MCP 2026-07-28 while continuing to serve older clients. We have tested it with Claude Desktop, Claude Code, Codex, Cursor, ChatGPT, and other Streamable HTTP or stdio clients.

Feedback on tool descriptions, research-agent workflows, OAuth compatibility, and missing evidence primitives is welcome.