How can I map different metadata formats to the DataCite schema?

Supported formats

You can send metadata to DataCite in any of the following formats and it will be converted and validated against the DataCite XML schema. The DataCite Schema website provides detailed descriptions of all fields in the XML schema and examples.

Full metadata

DataCite XML
DataCite JSON API
Schema.org JSON-LD
Codemeta JSON
BibTeX
RIS
Citeproc JSON
JATS XML

Citation metadata crosswalk

The required fields for citation.

DataCite XML	schema.org	RIS	BibTex	Code meta	JSON API response	Citeproc JSON	Jats XML
identifier	@id	DO	@misc	@id	id	Id	pub-id
title	name	T1, T2	title	name	titles	title	source
creator	author	AU	author	author	creators	author	person-group
publisher	publisher	PB	publisher	publisher	publisher	publisher	publisher-name
publicationYear	datePublished	PY	year	datePublished	publicationYear	issued	year
version	version			version	version	version	version
resourceTypeGeneral	@type	TY	types	types	types	type	publication-type

Discovery metadata crosswalk

The most important fields for describing the resource.

DataCite XML	schema.org	RIS	BibTex	Code meta	JSON API response	Citeproc JSON
description	description	AB		description	descriptions	abstract
subject	keywords	KW	keywords		subjects	categories
rights	license	SN	copyright	license	rights
relatedIdentifier	isPartOf citation	SN		relatedLink	relatedIdentifiers

DataCite JSON

A version of the JSON Schema for DataCite metadata is available in the DataCite Schema Github repository. However, the JSON Schema is currently in our backlog and is not in active development. We invite all the community to submit your interest in such development via the DataCite Roadmap.

The JSON Schema will allow users to validate using the "DataCite JSON Schema" in the same way as the XML schema.

Do note that the "DataCite JSON Schema" is based on json-schema.org and therefore the current "DataCite JSON" will not conform to this.

Dublin Core

The DataCite Metadata Working Group. (2021). Provides a DataCite to Dublin Core Mapping 4.4.

Resources

The Research Data Alliance Research Metadata Schemas Working Group has put together a prototype service for the research data management community in support of managers who are investigating options for including schema.org markup into existing well formed metadata.
This publication from Scientific Data a data citation roadmap for scholarly data repositories is a practical roadmap for scholarly data repositories to implement data citation in accordance with the Joint Declaration of Data Citation Principles.
The full Crosswork of CodeMeta metadata.
DataCite's Bolognese Github repository for metadata conversions for conversion of DOI metadata from and to different metadata formats, including schema.org.