A Google Patents API with the full record, not just a title
Search Google Patents for the full record: inventor, assignee, filing and grant dates, and the PDF. One credit per search.
One request, the full patent
Ten results came back in about two seconds. Each record carries the dates, the parties, and the publication number, and most also carry a direct pdfUrl, so you do not need a second call to open the patent.
The full record
These fields come from what Google Patents lists for each record. On the wireless charging example above, the inventor, assignee, and all three dates were present. When a record does not list a field, it is left out rather than faked.
Built for prior-art and patent-monitoring work
IP and legal tech
R&D prior-art search
Patent monitoring
Detail in the response, billed on success
Other patent APIs sell the search results as JSON too. The difference here is what comes back and when you pay. Each result already carries the dates, the inventor, the assignee, the publication number, and a PDF link when a public copy exists, so a prior-art lookup is one call, not a search followed by a detail fetch. You are charged one credit per search, an empty search is free, and the credits you buy never expire.
| A thin patent SERP feed | CrustAPI Patents | |
|---|---|---|
| Dates (priority, filing, grant) | Often a follow-up call | Inline on every record |
| Inventor and assignee | Sometimes missing | Present when Google lists them |
| PDF link | Not always included | pdfUrl when a public copy exists |
| Billing | Per call, hit or miss | 1 credit per search, empty is free |
| Credit expiry | Varies | Purchased credits never expire |
| Free tier | Varies | 3,000 credits / month, no card |
One credit per search
A patents search costs one credit no matter how many results come back, and a search that returns nothing costs nothing. Prepaid packs never expire: 25k for $49, 100k for $149, 500k for $549, up to 250M, all self-serve, ex-tax. Every account starts with 3,000 free credits a month and no card. It reads like the rest of the Google menu, so it slots into the same code as your other search types.
This endpoint is one type on the Google Search API. Same key, same shape, one credit per search across the menu.
Other patent APIs earn their keep too. Tools like SerpApi, SearchApi, and Scrapingdog have sold patent search JSON for a while and cover a lot of ground. If you already run on one of them and it fits, there is no reason to move. This page is for teams who want the full record in one call and to pay only when a search works.
Common questions
Pull a patent record in one call
3,000 free credits covers a real prior-art run. Point a query at the API and read the full JSON, PDF link included.
Get 3,000 free credits