Space Kitty Archive alternatives

Tools that do what Space Kitty Archive does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Space Kitty Archive.

Read 2026-11-02 · Space Kitty Archive itself: From $0.20 per use

With a free plan or free to use: Liner, Amass, AcaTrove, Cerebrum, FirmLedger, Quant Data.

10 alternativesUnlike Space Kitty Archive

#1
AI for Research Knowledge
Searches scientific papers and checks whether later studies support or contradict each claim, then grounds AI answers in those papers.
Also: Chat assistantMore widely used
16.7k
Active
#2
Liner Knowledge MCP · sign-in
Searches academic research, generates citations, and drafts professional documents with cited sources.
Free planAlso: RAG
12.8k
Active
From $14.99/mo
#3
Amass Knowledge MCP · sign-in
Answers research questions by searching papers, trials, patents and regulatory records, citing the record behind each claim.
Free planMore widely used
1k
Active
From $9/mo
2022
#4
AcaTrove Knowledge MCP · sign-in
Answers questions from your own papers and the open literature with retrieved passages, drafts grant narratives, and checks citations against cited papers.
Free planAlso: Writing
103
Active
From $5/mo
#5
Paperguide Knowledge MCP · sign-in
Searches scientific papers, manages references, extracts study data into cited tables and drafts citation-grounded writing for literature and systematic reviews.
Also: Data extraction, WritingMore widely used
66k
Active
From $12/user/mo
#6
Atly Knowledge MCP · open
Ranks and explains local places against a person's stated intent, such as a quiet café for remote work, through an app or API.
Own MCP serverMore widely used
3.5M
Active
#7
Cerebrum Knowledge MCP · open
Answers research questions by searching 14 open scholarly databases and citing each claim to its source paper.
Free planOwn MCP server
Little sign of use
Active
From $3.99/mo
#8
FirmLedger Developer tools MCP · open
Indexes businesses from open sources into canonical profiles with field-level provenance, confidence scores and DNS-verified ownership, queryable via API.
Free planOwn MCP server
48
Active
From $30/mo
#9
Syntology Knowledge MCP · sign-in
Indexes ML papers, authors and code into a citation graph and checks reference implementations against their source papers.
CheaperMore widely used
Little sign of use
From $0.03 per use
#10
Quant Data Knowledge MCP · open
Tracks what research publishers said about each ticker and measures those claims against market data, served through an API and MCP server.
Free planOwn MCP server
19
Active
From $49/mo

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How this list is made: the words Space Kitty Archive is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.