Find Public APIsA building block for your next idea.
Create a research bibliography finder that links speech-synthesis papers to their DOIs.
Know before you build
No signup is needed for public metadata reads. Identify your app and use the polite pool for regular requests. Metadata completeness varies; abstracts may be copyrighted, and records do not imply access to full papers.
Check current provider documentation ↗Your first request
Start with this documented example. Replace credential placeholders with your own test credentials. Browser execution depends on the provider’s CORS policy.
curl --request GET 'https://api.crossref.org/works?query=bulgarian%20speech%20synthesis&rows=5'Practical questions
What can I build with Crossref?+
Create a research bibliography finder that links speech-synthesis papers to their DOIs.
Does Crossref need authentication?+
The reviewed example is listed as “No key”. No signup is needed for public metadata reads. Identify your app and use the polite pool for regular requests. Metadata completeness varies; abstracts may be copyrighted, and records do not imply access to full papers.
Can I call Crossref from a browser?+
Browser access depends on the provider’s CORS policy for your origin, method, and headers. The playground makes a direct request and cannot bypass those restrictions.
Sources & confidence
Provider documentation was reviewed on 16 September 2026. This is not a live availability test or an endorsement.
Source catalogs can become outdated. Read our review and attribution policy. Plain-text guide ↗