What it can do
search_papersSearch 8.5M papers by topic, author, or linked entity (gene/protein/disease).
get_paperFull metadata for any arXiv or OpenAlex ID. TLDR, findings, code, models, reviews, links.
similar_papersSPECTER2 nearest neighbors. Papers like this one.
citationsWho cites a paper. Follow-up work across the citation graph.
referencesWhat a paper cites. Walk back through its bibliography.
get_full_textFull body text as Markdown: methods, results, protocols. arXiv, PMC & bioRxiv/medRxiv.
get_figuresReal figure images, labels, and captions extracted from a paper.
get_entitiesLinked genes, proteins, chemicals, diseases, cell lines & clinical-trial IDs.
get_structureResolve a gene/protein to its UniProt accession + 3D AlphaFold structure.
One server. Every client.
Add one URL and Tomesphere shows up as tools inside whatever you already use. Anonymous out of the box. Sign in from the client for a higher limit, no key to paste.
Not just titles and abstracts.

arXiv + PMC, bioRxiv, medRxiv — every discipline. Title, authors, abstract, venue, citations, OpenAlex ID.

SPECTER2 neighbours + who-cites-what, via OpenAlex.

TLDR, findings, contribution — every paper.

477K UniProt accessions, resolved to their source papers.

146M mentions — genes, proteins, chemicals, diseases.

1.58M papers.

109K → AlphaFold.

402K reviews.

132K NCT-linked.

207K GitHub + HuggingFace links, plus talk videos.

YouTube, SlidesLive.
Free to use. Sign in for more.
No signup, no key. Add the server and start.
- No signup, no key
- Open data — free to query
- Every tool, rate-limited by IP
Sign in once — your client runs OAuth in the browser. No web form, no key to paste.
- No key to paste — browser sign-in
- No card, ever
- 10× the daily limit
One URL. Streamable HTTP.
https://mcp.tomesphere.com/api/mcp