fittings-text-extract-citations

Installation
SKILL.md

Citation identifier extractor

text.extract-citations on https://fittings.sh. One endpoint, deterministic compute.

Pulls DOIs, arXiv ids, PMIDs, PMCIDs and ISBNs out of free text, deduplicated and normalized, with the character offset of each first occurrence.

The call

POST https://fittings.sh/v1/text/extract-citations
Field Type Required Notes
text string yes Free text, up to 200000 characters
kinds array no Restrict to these kinds: doi, arxiv, pmid, pmcid, isbn. Default all.

Example input:

Installs
15
First Seen
Aug 16, 2026