x402_check $0.003 per call

Fetches a URL and reports its HTTP status; if the response is 402 Payment Required, parses the JSON body per the x402 protocol and extracts payment requirements (scheme, network, payTo, asset, maxAmountRequired, description, resource) from the 'accepts' array.

For AI agents: call x402_check
POST https://toll402.dev/v1/t/x402_check
{
 "url": "https://example.com"
}
Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp) or send a prepaid-credits key as x-toll402-key (https://toll402.dev/credits). Paid per call via x402 (USDC on Base) or with a prepaid-credits key (x-toll402-key, card at /credits); charged only on success. Start at /llms.txt or connect the MCP server: npx -y toll402-mcp · remote https://toll402.dev/mcp.

Input schema

{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "URL to check"
  },
  "method": {
   "type": "string",
   "enum": [
    "GET",
    "POST"
   ],
   "default": "GET"
  }
 },
 "required": [
  "url"
 ]
}

MCP

{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}

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