Google Patents API endpoint
Returns how many patent grants and applications Google Patents has indexed, per patent office/country, per year, across every authority it covers. Public data, sourced from Google Patents' own search API.
/googlepatents/coverageReturns how many patent grants and applications Google Patents has indexed, per patent office/country, per year, across every authority it covers (100+ countries, most with decades of history). Takes no parameters.
Response fields: countries[] (country_code, years[] with year, grants, applications), source_url, fetched_at.
Example response (trimmed):
{"code":200,"msg":"OK","data":{"countries":[{"country_code":"US","years":[{"year":2024,"grants":"350000","applications":"420000"},{"year":2025,"grants":"330000","applications":"400000"}]},{"country_code":"CN","years":[{"year":2025,"grants":"2802408","applications":"1712467"}]}],"source_url":"https://patents.google.com/xhr/stats","fetched_at":"2026-08-15T16:00:00Z"}}
| Field | Filled in, of 107 checked | Values in the sample |
|---|---|---|
| country_code | 107 | |
| years | 106 | median 49 entries |
| Parameter | Type | Required | Default | Description | Example |
|---|---|---|---|---|---|
| x-api-key (header) | string | Yes | API key required |
curl -X GET "https://api.crawlora.net/api/v1/googlepatents/coverage" \ -H "x-api-key: $CRAWLORA_API_KEY"
{
"code": 200,
"msg": "OK",
"data": {
"countries": [
{
"country_code": "US",
"years": [
{
"year": 2024,
"grants": "350000",
"applications": "420000"
},
{
"year": 2025,
"grants": "330000",
"applications": "400000"
}
]
},
{
"country_code": "CN",
"years": [
{
"year": 2025,
"grants": "2802408",
"applications": "1712467"
}
]
}
],
"source_url": "https://patents.google.com/xhr/stats",
"fetched_at": "2026-08-15T16:00:00Z"
}
}Request schema
No body schema
Response schema
#/definitions/googlepatents.coverageResponseDoc
| Field | Type | Required | Enum | Bounds | Example | Description |
|---|---|---|---|---|---|---|
| code | integer | No | 200 | |||
| data | googlepatents.CoverageResponse | No | ||||
| data.countries | array | No | ||||
| data.countries[].country_code | string | No | US | |||
| data.countries[].years | array | No | ||||
| data.countries[].years[].applications | string | No | 1712467 | |||
| data.countries[].years[].grants | string | No | 2802408 | |||
| data.countries[].years[].year | integer | No | 2025 | |||
| data.fetched_at | string | No | ||||
| data.source_url | string | No | ||||
| msg | string | No | OK |
| Status | Description | Schema |
|---|---|---|
| 429 | Too Many Requests | #/definitions/app.Response |
| 500 | Internal Server Error | #/definitions/app.Response |
| 503 | Service Unavailable | #/definitions/app.Response |
Use environment variables for secrets and keep Crawlora API keys server-side.
curl -X GET "https://api.crawlora.net/api/v1/googlepatents/coverage" \
-H "x-api-key: $CRAWLORA_API_KEY"