shipapis
StarSubmit an APISubmit API

Chinese Text Project vs Crossref Metadata Search

Same instrument, two spec sheets — measured, not claimed.

APIChinese Text ProjectHEALTHY93Crossref Metadata SearchHEALTHY90
Uptime · 30d
Uptime · 90d100%97.1%
Uptime · 30d100%95.0%
P50 · ms401522
P95 · ms13222683
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedOpen Crossref metadata (much is CC0)
Free tierFree (higher limits with a free API key)Free, no key (public pool)
Rate limitFair-use; raised with an API key5 requests/second, 1 concurrent (public pool, per X-Rate-Limit headers)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Chinese Text Project vs Crossref Metadata Search: common questions

Which is more reliable, Chinese Text Project or Crossref Metadata Search?

On our scheduled checks, Chinese Text Project leads on measured uptime — Chinese Text Project at 100% versus Crossref Metadata Search at 97.1% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Chinese Text Project or Crossref Metadata Search?

Chinese Text Project has the lower median latency in our checks — Chinese Text Project responds in 401 ms versus Crossref Metadata Search at 522 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Chinese Text Project and Crossref Metadata Search need an API key?

Neither needs a paid key — Chinese Text Project is callable with no signup, and Crossref Metadata Search is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Chinese Text Project and Crossref Metadata Search from the browser?

Yes — both Chinese Text Project and Crossref Metadata Search send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Chinese Text Project and Crossref Metadata Search free for commercial use?

Chinese Text Project has unclear commercial terms, and Crossref Metadata Search allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.