Search engine for scientific AI agents: full-text search over top CS conference papers with citation tracing and MCP access.
Lune homepage — AI research, free of AI slop
1 / 3Overview
What is Lune?
AI Research, Free of AI Slop
Lune is a search engine built for scientific AI agents — a research MCP server plus CLI that plugs AI agents into peer-reviewed papers from top computer science conferences, with full-text search, citation tracing, and research best practices.
Instead of open-web noise, Lune searches the full text of A/A* venue papers (NeurIPS, ICML, ICLR, ACL, CVPR, CCS, S&P, USENIX Security, ICSE, KDD, SIGMOD, VLDB, and more, from 2016 onward). Agents can read full texts, trace citations forward and backward, verify every cited claim sentence by sentence against the source paper, and pull practical guidance for literature reviews, evaluation design, and academic writing.
An MCP server (mcp.luneresearch.com) and npm CLI (@retrograde-labs/lune-mcp-server) connect 46 apps including ChatGPT, Claude, Claude Code, Cursor, VS Code, and GitHub Copilot. The free plan includes 10 requests per day with no feature gates and no credit card required; Pro ($4.99/month) and Max ($9.99/month) raise daily quotas, and $0.99 top-up credits for 300 requests never expire.
Platforms and languages
Lune Availability
Platforms
Languages
Capabilities
Lune Key Features
Trusted corpus search
Full-text semantic search over A/A* computer science conference papers — no open-web noise.
Citation tracing
See what a paper builds on and who cites it, forward and backward through the literature.
Claim verification
Verifies cited claims sentence by sentence, confirming each citation matches the paper it points to.
Research best practices
Practical guidance for literature reviews, evaluation design, and writing submissions, served when agents need it.
MCP server and CLI
An MCP server and CLI connect 46 apps — ChatGPT, Claude, Claude Code, Cursor, VS Code, GitHub Copilot — to full-text paper search and citation tracing.
Best for
Who uses Lune?
Students and academic researchers
Search top conference papers and verify citations for literature reviews and writing
Technical teams using AI agents
Plug agents into grounded research knowledge via MCP instead of open-web search
Plans and access
Lune Pricing
Freemium
Free 10 requests/day; Pro $4.99/mo, Max $9.99/mo; top-up credits $0.99/300
Common questions
Lune FAQs
What is Lune?
An MCP server plus CLI that plugs AI agents (Claude Code, Cursor, Codex, ChatGPT, and 46 apps total) into peer-reviewed papers from top computer science conferences. Agents search the corpus, read full texts, trace citations, and look up research best practices — every cited claim can be opened and verified.
Which AI apps does it work with?
Any app that supports the MCP protocol; the install page covers 46 (Claude, Claude Code, ChatGPT, Codex, Cursor, VS Code, GitHub Copilot, and more). Remote MCP connects via URL and OAuth, local setups use the stdio server with an access key.
Is it free?
Free includes 10 requests per day with no feature gates. Pro is $4.99/month for 300 requests per day, Max is $9.99/month for 600 per day. When the quota runs out, $0.99 buys 300 extra requests that never expire and work on any plan.
Which papers are covered?
CORE/CCF-ranked computer science conferences from 2016: AI/ML (NeurIPS, ICML, ICLR, ACL, CVPR), security (CCS, S&P, USENIX Security, NDSS), software engineering and systems (ICSE, FSE, OSDI, SOSP), data (KDD, SIGMOD, VLDB), plus WWW and STOC. All papers have abstracts and metadata; most have parsed full text.
Does it share paywalled papers?
No. Lune only indexes full text where legally available and does not resell paywalled PDFs; public pages show metadata and abstracts, and full text reaches agents only through authenticated tools.
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