Lune

Comparisons

Lune vs Scid

Scid searches papers, drafts literature reviews and draws the citation graph in a workspace you can organize. Lune exposes the same graph as a tool call, so the agent walks it instead of you.

Install the connectorSee pricingscid.ai

Start with the one you should not buy from us

If the first list is you, take Scid.

Choose Scid if

  • Seeing the citation graph laid out is how you find the thread.
  • You want a workspace with a library, tables and drafts in one place.
  • Non-expiring credits suit work that comes in bursts.

Choose Lune if

  • You would rather the agent traverse the graph than hand you a picture of it.
  • You need the quote behind a claim, with its location.
  • You want the same tools in every client you use.

From a question to a citation

Scid

  1. Search papers
  2. Draw the citation graph
  3. Draft the review

Lune

  1. Search top-tier venues
  2. Walk the citations
  3. Quote with a locator
A graph you read, or a graph the agent walks on your behalf.

Line by line

Marks the side we think wins. We mark the ones we lose.

  • Where you use it

    Lune

    Lune wins this row. Any MCP client, plus a CLI and three miniapps.

    Scid

    The Scid web workspace.

  • Citation relationships

    Lune

    get_paper_citations walks both directions as a tool call.

    Scid

    Interactive citation graphs you explore visually.

  • How deep a citation goes

    Lune

    Lune wins this row. A verbatim quote and its locator, per claim.

    Scid

    Drafted reviews citing the papers found.

  • Your own files

    Lune

    A Workspace miniapp indexes uploads for your team.

    Scid

    Upload files into the workspace library.

  • How it is priced

    Lune

    A daily request allowance, from free.

    Scid

    Credits that do not expire, with a free tier.

  • Agent access

    Lune

    Lune wins this row. MCP and a CLI, on every plan.

    Scid

    No MCP server or public API listed on their site.

Where the difference comes from

Two things to do with a citation graph

Scid draws it. A laid-out graph is genuinely useful when you are new to an area and looking for the cluster everything points at, and visual exploration finds threads a query never would.

Lune traverses it. get_paper_citations returns what cites a paper and what it cites, so an agent can follow a lineage back to the paper that actually introduced a method, then quote the definition.

Drafting against grounding

Scid will draft the literature review for you. That saves a first pass, and the citations point at real papers it found.

Lune does not draft. Your agent writes, and verify_claims answers each sentence with the supporting quote or with nothing found. The division of labour is deliberate: the model is good at prose and bad at remembering what a paper said.

What your agent can call

  • search_papers
  • search_papers_many
  • search_related_papers
  • get_paper_fulltext
  • get_paper_citations
  • extract_from_papers
  • verify_claims
  • gather_evidence
  • list_conferences
  • get_conference_papers
  • search_research_guidance
  • get_research_guidance_doc

One connection, in Claude Code, Cursor, Codex, ChatGPT or anything else that speaks MCP. The same tools back the miniapps in the Lune dashboard.

Price

Lune

Free
$0 10 requests a day, every tool
Pro
$4.99 a month or $47.90 a year, 300 requests a day
Max
$9.99 a month or $95.90 a year, 600 requests a day
Credits
$0.99 300 extra requests, no expiry

Scid

Free
$0 no monthly credits
Paid
Credits purchasable, non-expiring

Scid sells credits rather than a flat monthly allowance. Prices move; treat this as a snapshot, not a quote.

What we read

Questions

Is Lune a Scid alternative?
For agent-side retrieval and claim checking, yes. For exploring a citation graph visually in a workspace, Scid is built for that and Lune is not.
Does Lune draw citation graphs?
No. It exposes citation edges as a tool your agent calls, in both directions.
Does Scid connect to agents?
No MCP server or public API is listed on their site.

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