化學與藥物探索搜尋 API
在單一端點查詢 ChEMBL 生物活性(IC50/Ki/Kd/EC50)、PubChem 結構與屬性、Open Targets 標靶-疾病關聯。預先成型的 JSON,適用於 AI 驅動的藥物探索、化學資訊學與生物醫學研究。
Integration guide
Copy a snippet, replace your API key, run. Works in any HTTP client — examples below in cURL, JavaScript, and Python.
/api/search/chemistryhttps://www.apipick.com對 ChEMBL、PubChem 與 Open Targets 的語意搜尋。回傳排序後的記錄與可供下游 LLM 使用的來源 URL。
querystringrequiredNatural-language search query
max_num_resultsintegeroptional1–5, default 5
relevance_thresholdnumberoptional0.0–1.0 quality filter
country_codestringoptionalISO country code (e.g. US, GB)
start_datestringoptionalISO date YYYY-MM-DD
end_datestringoptionalISO date YYYY-MM-DD
curl -X POST "https://www.apipick.com/api/search/chemistry" \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_API_KEY" \
-d '{
"query": "Kinase inhibitor selectivity for EGFR",
"max_num_results": 5,
"country_code": "US",
"start_date": "2026-01-01"
}'{
"query": "Kinase inhibitor selectivity for EGFR",
"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": 30,
"remaining_credits": 99
}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.
60req/min
Per API key, per endpoint. Sliding 60-second window.
3concurrent
Max simultaneous in-flight requests per API key.
X-RateLimit-LimitMaximum requests allowed per minuteX-RateLimit-RemainingRequests remaining in the current windowX-RateLimit-ResetSeconds until the current window resetsRetry-AfterSeconds to wait before retrying (only on 429)HTTP/1.1 429 Too Many Requests
Retry-After: 12
X-RateLimit-Limit: 60
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 12
{
"error": "rate_limit_exceeded",
"message": "Rate limit exceeded: 60 requests/minute per API key. Retry after 12s.",
"retry_after": 12
}常見問題
為什麼每次呼叫要 30 點數?
ChEMBL、PubChem 與 Open Targets 是大型的結構化科學資料集,需要持續的索引維護,因此此端點定價為 30 點數(約 $0.03/次),只是專用化學資訊學平台的一小部分。
涵蓋哪些來源?
ChEMBL(生物活性:IC50/Ki/Kd/EC50)、PubChem(超過 1 億個化學結構與屬性)、Open Targets(標靶-疾病關聯與驗證)。三者並行查詢。
可以依化合物或標靶搜尋嗎?
可以。傳入化合物名稱、標靶/基因,或自然語言查詢(如「EGFR 激酶抑制劑選擇性」),端點會將最相關的記錄排序。
支援日期篩選嗎?
支援。以 YYYY-MM-DD 格式傳入 start_date 與 end_date 即可限定時間範圍。
OpenAI / Claude 的工具 schema?
GET /api/search/chemistry/tool-schema 會回傳可直接貼上的 OpenAI 函式與 Claude 工具呼叫定義。