[ search · endpoint ]搜索API · 专利

专利搜索API

按关键词、技术领域或申请人查询全球专利文件。预先成型的JSON，用于先有技术搜索、IP图谱与AI驱动的研发分析。

●80 积分 / 调用●30 次/分钟POST /api/search/patents

[ 01 · live ]

实时试用专利搜索

输入您的API密钥，对生产端点发起一次真实查询。

auth · x-api-key

API 密钥

还没有 API 密钥？

登录账户以创建和管理您的 API 密钥。

登录管理 API 密钥

[ 02 · integrate ]

Integration guide

Copy a snippet, replace your API key, run. Works in any HTTP client — examples below in cURL, JavaScript, and Python.

spec

POST/api/search/patents

base

https://www.apipick.com

对全球专利文件的语义搜索。返回标题、摘要和可供下游LLM使用的源URL。

parameters

querystringrequired

Natural-language search query

max_num_resultsintegeroptional

1–5, default 5

relevance_thresholdnumberoptional

0.0–1.0 quality filter

country_codestringoptional

ISO country code (e.g. US, GB)

start_datestringoptional

ISO date YYYY-MM-DD

end_datestringoptional

ISO date YYYY-MM-DD

curl -X POST "https://www.apipick.com/api/search/patents" \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{
  "query": "Find prior art for neural network training optimization techniques",
  "max_num_results": 5,
  "country_code": "US",
  "start_date": "2026-01-01"
}'

● 200 · response

{
  "query": "Find prior art for neural network training optimization techniques",
  "results": [
    {
      "title": "Example result",
      "url": "https://example.com/article",
      "snippet": "Short excerpt of the page content…",
      "source_type": "web",
      "published_at": "2026-04-15",
      "score": 0.92
    }
  ],
  "result_count": 1,
  "credits_used": 80,
  "remaining_credits": 99
}

[ 03 · limits ]

Rate limits

Throttling is per API key, sliding 60-second window. Hit the limit and you get a clean 429 with a Retry-After header.

request rate

30req/min

Per API key, per endpoint. Sliding 60-second window.

concurrency

3concurrent

Max simultaneous in-flight requests per API key.

response headers

X-RateLimit-LimitMaximum requests allowed per minute

X-RateLimit-RemainingRequests remaining in the current window

X-RateLimit-ResetSeconds until the current window resets

Retry-AfterSeconds to wait before retrying (only on 429)

● 429 · too many requests

HTTP/1.1 429 Too Many Requests
Retry-After: 12
X-RateLimit-Limit: 30
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 12

{
  "error": "rate_limit_exceeded",
  "message": "Rate limit exceeded: 30 requests/minute per API key. Retry after 12s.",
  "retry_after": 12
}

[ faq ]

常见问题

覆盖哪些专利局？

全球申请 — USPTO、EPO、WIPO PCT、JPO、KIPO、CNIPA以及主要国家局。搜索运行在统一的语义专利索引之上。

可以按申请人或发明人过滤吗？

将其作为自然语言查询的一部分传入（例如 assignee:Tesla 电池热管理）。语义索引可在查询字符串中解析实体式过滤。

可以按日期范围过滤吗？

可以。start_date / end_date（YYYY-MM-DD）按申请或公开日期过滤。

与USPTO直接搜索相比定价如何？

USPTO的公共搜索免费但仅支持关键词，且没有语义排序。本API以每次调用80积分（约 $0.08 用户成本）运行跨司法辖区的语义搜索 — 在需要排序的、面向LLM的结果时非常有用。

工具Schema？

GET /api/search/patents/tool-schema 返回OpenAI函数与Claude工具使用定义。