Marketplace · API · x402

api.kadec0.xyz/v1/topic-search

Field and topic search for research papers. Give a broad field name or short phrase (like 'crispr' or 'exercise science') and get a coherent, taxonomy-grounded seed cluster: the field is resolved against the OpenAlex topics taxonomy, then the cluster returns the top-cited plus recent-influential works, each with title, authors, year, venue, citation count, and DOI. Solves the broad-term entry problem dense semantic search fails on. Keyless.

Endpointhttps://api.kadec0.xyz/v1/topic-search
Trust✓ Verified callable · 100% uptime over 1 checks · ~98 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA
methodGET
last updated2026-11-09T07:09:36.391Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.kadec0.xyz/v1/topic-search
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-8cf85b633b6d79a9

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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