check_change
Tells an agent whether a public page changed since the last check, comparing normalized text hashes and returning a compact diff.
When an agent should call it
Stateless SHA-256 comparison with short-lived in-memory snapshots; no LLM is used and authenticated pages are not supported. Pair with extract_structured to pull the updated values, or get_live_quote when tracking a price.
Input: Public HTTPS page and prior SHA-256 hash
Price: $0.001 USDC per call, paid in USDC via x402 on Base.
MCP connection: one-time setup, then call check_change on each needed workflow.
Direct HTTP resource: https://mcp.dropenginehq.com/api/check-change
Example input
{
"url": "https://example.com",
"previous_hash": "sha256:0000000000000000000000000000000000000000000000000000000000000000"
}Each call requests payment for this tool only. The agent receives a structured result and decides what to do next. Check the limits above before acting on risk, market, freshness, or availability results.
MCP endpoint: https://mcp.dropenginehq.com/api/agent-services