x402 resource directory

Find paid HTTP operations and MCP tools by URL, host, method or tool name. Compare payment terms across networks and catalogs.

Distinct HTTP URLs
164,839
Distinct MCP URLs
43
Catalog observations
263,972
URLs with a 402 in 7 days
2,279
Network identifiers
183

These results as JSON · Clear filters

HTTP https://linkproof.zopip.com/v1/find-archive · 1 observation

linkproof.zopip.com profile

  • Network unreported
    Amount unreported
    Operator manifest · seen
POST https://linkproof.zopip.com/v1/find-archive · 2 observations
LinkProof archive: for up to 10 URLs (e.g. dead links), find the closest Internet Archive Wayback Machine snapshot, optionally nearest to a given date. Returns snapshot URL, capture timestamp, captured HTTP status and distance in days from the requested date. Use it to replace or back up rotted citations.

linkproof.zopip.com profile

  • Base · exact
    $0.0050 (USDC)
    Recipient 0x80042a9F07df4373Fa72A798C9764Aea7863c2ec
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Base · exact
    $0.0050 (USDC)
    agentic.market · seen
HTTP https://linkproof.zopip.com/v1/verify-citations · 1 observation

linkproof.zopip.com profile

  • Network unreported
    Amount unreported
    Operator manifest · seen
POST https://linkproof.zopip.com/v1/verify-citations · 2 observations
LinkProof citations: verify up to 10 references an agent is about to cite. Accepts DOI, arXiv id, PubMed id, free-text reference, or {title, authors, year}. Checks Crossref/DataCite, arXiv and PubMed; returns per citation exists, matched metadata (title, authors, year, venue, URL), field mismatches, confidence and verdict (verified, mismatch, not_found). Catches hallucinated or misattributed papers.

linkproof.zopip.com profile

  • Base · exact
    $0.0100 (USDC)
    Recipient 0x80042a9F07df4373Fa72A798C9764Aea7863c2ec
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
HTTP https://linkproof.zopip.com/v1/verify-links · 1 observation

linkproof.zopip.com profile

  • Network unreported
    Amount unreported
    Operator manifest · seen
POST https://linkproof.zopip.com/v1/verify-links · 2 observations
LinkProof: verify up to 10 URLs before an agent cites or sends them. Per URL returns verdict (live, soft_404, parked, dead, blocked, unreachable), HTTP status, final URL after redirects, title, meta description, and optional check that an expected phrase appears on the page. Catches hallucinated or rotted links.

linkproof.zopip.com profile

  • Base · exact
    $0.0050 (USDC)
    Recipient 0x80042a9F07df4373Fa72A798C9764Aea7863c2ec
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Base · exact
    $0.0050 (USDC)
    agentic.market · seen

Counts describe directory coverage, including testnets. Each resource groups the same URL, HTTP method or MCP tool across sources. A catalog sighting records published terms. A live 402 records the endpoint’s reply to an unpaid request.