the402 endpoint detail

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api.x402node.dev text keywords

https://api.x402node.dev/text/keywords

payable

extract keywords, keyword extraction, keyword extractor, find keywords, top keywords, SEO keywords, automatic keyword extraction, document keywords. Extract significant keywords from any English or multilingual text. Returns top N keywords ranked by frequency and importance with stopwords filtered. For AI agents doing SEO analysis, content tagging, document categorization, topic modeling. Accepts

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.0022
Network
base
Pay to
0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
44 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:18:06.715Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.x402node.dev%2Ftext%2Fkeywords"