Marketplace · API · x402

keywords.duoleads.com/v1/backlinks

Backlink profile of a domain: domain rank (0-1000), backlinks, referring domains, main domains, IPs and subnets, nofollow and broken links, spam score, first seen, and breakdowns by link type, TLD and country, from a web link index, in one $0.048 call. Use when you need a site's link authority at a glance. A domain with no links is an answer with zeros or no counts, which is still charged. Bad input is a free 400; a data source failure is not charged.

Endpoint	`https://keywords.duoleads.com/v1/backlinks`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39
method	POST
last updated	2026-11-09T16:27:02.904Z

Use it

Call it (an x402 client pays automatically)

curl -i https://keywords.duoleads.com/v1/backlinks
# 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/x402-41b93b46258270e0

Search the whole marketplace from your agent (MCP)

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

keywords.duoleads.com/v1/backlinks

Use it

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