Everything you need to build on Scholar Sidekick - the citation resolver, formatter, exporter, and verifier for scholarly identifiers (DOI, PMID, PMCID, ISBN, ISSN, arXiv, ADS bibcode, WHO IRIS URL). Each surface below wraps the same REST API, so output is identical whether you call it over HTTP, MCP, or the CLI.
REST API
The HTTP API every other surface wraps. Start here for endpoints, parameters, and examples.
Citation API overview - What the free citation API does, a quickstart call, and how it compares to calling Crossref or OpenAlex directly.
API documentation - Full endpoint reference: resolve, format, export, verify, retraction, and open-access checks.
