DiffiCat

Name: DiffiCat
Author: com.difficat

MCP serverMCP

Compare a website before and after a migration: missing pages, content changes, visual diffs.

by com.difficathomepage ↗v3.22.4

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Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability42/44 checks ok

when	check	result	http	latency	detail
4 h ago	http head	failed	—	—	disallowed by robots.txt
17 h ago	http head	failed	—	—	disallowed by robots.txt
24 h ago	mcp initialize	ok	200	41 ms	server difficat 3.53.2 · protocol 2025-06-18 · 12 tools
30 h ago	mcp initialize	ok	200	33 ms	server difficat 3.53.2 · protocol 2025-06-18 · 12 tools
2 d ago	mcp initialize	ok	200	35 ms	server difficat 3.48.3 · protocol 2025-06-18 · 12 tools
2 d ago	mcp initialize	ok	200	44 ms	server difficat 3.48.2 · protocol 2025-06-18 · 12 tools
2 d ago	mcp initialize	ok	200	32 ms	server difficat 3.48.2 · protocol 2025-06-18 · 12 tools
2 d ago	mcp initialize	ok	200	38 ms	server difficat 3.48.2 · protocol 2025-06-18 · 12 tools
3 d ago	mcp initialize	ok	200	34 ms	server difficat 3.46.1 · protocol 2025-06-18 · 12 tools
3 d ago	mcp initialize	ok	200	32 ms	server difficat 3.45.0 · protocol 2025-06-18 · 12 tools

Tools observed via MCP handshake

discover_pages — Free 3 times a day per client address (at most 50 pages each), no key needed. Lists the pages of Site A (sitemap, robots.txt or crawl), mapped onto Site B when
capture_screenshot — Free 3 times a day per client address, no key needed. Full-page PNG of one URL at the given viewport width, returned inline when small, else as links.file to fe
start_comparison — Free up to 10 pages a day per client address, no key needed; sample report: https://difficat.com/agents/sample/report.json. Compares Site A against Site B on pa
recover_comparison — Returns the job or screenshot the payment credential in _meta paid for, with a new jobToken that replaces the old one; or, when the request carries a key and _m
get_comparison — Status and progress of a job and, once it is terminal, its summary: passed, failed and issuesBySeverity. To wait for the end, call wait_for_comparison instead.
cancel_comparison — Stop a running job; the job reports cancelled within a minute, with the pages compared so far in its report. Free.
wait_for_comparison — Waits until the job reaches a terminal status (completed, failed or cancelled) or timeoutSeconds pass (default 60, at most 300), then answers like get_compariso
get_report — The finished report. Call it first with failedOnly: true: results, total and nextOffset then cover only the pages that failed, while summary still covers every
get_screenshot — Fetch one screenshot PNG by filename. Call it when a get_report page result or a capture_screenshot result names a screenshot you want to see; a PNG over the in
get_balance — The prepaid balance and the last 20 ledger entries of the key the request carries in its Authorization: Bearer or X-DiffiCat-Key header. Call it to check what a
request_prepaid_key — Mints a prepaid key and a Checkout link for a human to pay by card, so later paid calls are debited from its balance instead of challenged. Call it when a call
send_feedback — Sends one message to the people who run this service: why a price, a payment path or a result did not fit. Call it when you stop short of a paid call or a resul

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No long description beyond the summary.

kind Official MCP Registry

name Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

homepageUrl Official MCP Registry

publisherName Official MCP Registry

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Official MCP Registrycom.difficat/difficat

first seen 12 d ago · fetched 20 h agoopen ↗

Field history (6 recent events)

12 d ago · declared · summary → "Compare a website before and after a migration: missing pages, content changes, visual diffs."
12 d ago · declared · description → "Compare a website before and after a migration: missing pages, content changes, visual diffs."
12 d ago · declared · publisherName → "com.difficat"
12 d ago · declared · homepageUrl → "https://difficat.com/agents"
12 d ago · declared · version → "3.22.4"
12 d ago · declared · protocols → ["mcp"]

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