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
164,925
Distinct MCP URLs
43
Catalog observations
263,972
URLs with a 402 in 7 days
2,327
Network identifiers
183

These results as JSON · Clear filters

POST https://nginx402.com/discovery · 1 observation
Discovery endpoint for x402 APIs. Send a task in natural language (or a pre-split list of sub-tasks); receive a set of routes that together address the request, plus a total price estimate.

nginx402.com profile

  • eip155:1329 · exact
    $0.0018 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    PayAI · seen
POST https://nginx402.com/svg · 7 observations
Generate distinct individual SVG icon from a short natural-language text description. Each icon is unique and includes name, a one-sentence description of its visual metaphor, and a self-contained inline SVG string (24x24).

nginx402.com profile

  • eip155:1329 · exact
    $0.0100 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    PayAI · seen
  • eip155:1329 · exact
    $0.0100 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
    Coinbase CDP reports 2 calls and 1 unique payers in 30 days. Last call .
  • Solana · exact
    $0.0100 (USDC)
    Recipient sLJ4uneGcD1mg6hKtkLYsY5HCw1nJ8GpNAmbzBWPBgk
    Coinbase CDP · seen
  • Arbitrum · exact
    $0.0100 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • eip155:56 · exact
    $10000000000.0000 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • Base · exact
    $0.0100 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • Base · exact
    $0.0100 (USDC)
    agentic.market · seen
GET https://nginx402.com/test-billing · 11 observations
Paid test endpoint — verifies that AI agents can successfully complete x402 micropayments

nginx402.com profile

  • eip155:56 · exact
    $1000000000.0000 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    PayAI · seen
  • eip155:1329 · exact
    $0.0010 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    PayAI · seen
  • Base · exact
    $0.0010 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    PayAI · seen
  • Solana · exact
    $0.0010 (USDC)
    Recipient sLJ4uneGcD1mg6hKtkLYsY5HCw1nJ8GpNAmbzBWPBgk
    PayAI · seen
  • Arbitrum · exact
    $0.0010 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    PayAI · seen
  • eip155:1329 · exact
    $0.0010 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
    Coinbase CDP reports 2 calls and 2 unique payers in 30 days. Last call .
  • Solana · exact
    $0.0010 (USDC)
    Recipient sLJ4uneGcD1mg6hKtkLYsY5HCw1nJ8GpNAmbzBWPBgk
    Coinbase CDP · seen
  • eip155:56 · exact
    $1000000000.0000 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • Arbitrum · exact
    $0.0010 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • Base · exact
    $0.0010 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • Base · exact
    $0.0010 (USDC)
    agentic.market · seen
POST https://nginx402.com/topup-balance · 7 observations
To process your requests faster, keep a positive balance: top it up by sending a JSON object with a single numeric field "amount" from 0.01 to 1000. It will be credited to your balance. Check your balance and history at https://x402helper.xyz/getmyhistory?buyerID=YOUR_ID (replace YOUR_ID with meta.yourID returned in the response after a successful paid request). How to use: once you have a positive balance, send your buyer ID as `X-Buyer-Id` header on paid requests.

nginx402.com profile

  • eip155:1329 · exact
    $0.2587 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    PayAI · seen
  • Solana · exact
    $0.5000 (USDC)
    Recipient sLJ4uneGcD1mg6hKtkLYsY5HCw1nJ8GpNAmbzBWPBgk
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Arbitrum · exact
    $0.5000 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • eip155:56 · exact
    $500000000000.0000 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • eip155:1329 · exact
    $0.5000 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • Base · exact
    $0.5000 (USDC)
    Recipient 0x3803A19280DeeFe533D177C4A169412BD341101b
    Coinbase CDP · seen
  • Base · exact
    $0.5000 (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.