crawl4ai_watch_version $0.001 per call
A page as a monitor saw it. One version of a watched page as Markdown: the evidence behind a change (its before and after links point here). (Crawl4AI · Open web & SEO data)
For AI agents: call crawl4ai_watch_version
POST https://toll402.dev/v1/p/crawl4ai.watch.version
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": {},
"additionalProperties": true
}
MCP
{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}