FluxProof

Monitors public pricing, policy and changelog pages and returns before-and-after evidence with source URLs, content hashes, change history and signed webhooks. Free daily monitor for one page; paid passes are paid once for 30 days, with no subscription. REST and remote MCP.

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Hosted MCP Server

npx add-mcp 'https://fluxproof.neoaethel.workers.dev/mcp'

Installs into Claude Code, Codex, Cursor and more

Documentation

Source-bound Final URL + observed time

Hash-bound SHA-256 on normalized content

Quiet by design Terms + semantic magnitude

Agent-native REST, MCP, MPP, webhooks

A changed pixel is not a changed fact.

01

Normalize

Scripts, styles, markup, and presentation churn are removed before comparison.

02

Compare

Stable text, watched terms, and magnitude determine the evidence level.

03

Deliver

People read a concise receipt. Agents receive deterministic JSON or a webhook.

Prove value free. Pay for recurrence.

FluxProof Free

$0

  • 1 source
  • Daily interval for 30 days
  • 35 checks in total: 30 daily checks (the first is the baseline) plus 5 manual checks
  • Latest evidence receipt
  • No webhook

FULL 30-DAY CAPACITY

FluxProof Monitor Pass

$9 once / 30 days

  • 5 monitored sources
  • 14,400 scheduled checks: all five at 15 minutes for 30 days, including baselines
  • 600 extra manual-check credits
  • 15,000 total checks
  • Full history and evidence excerpts
  • Signed HTTPS webhooks
  • REST + MCP agent access

Need proof, not just a diff?

Evidence plans add price floors and timestamped proof packets for brands watching resellers and for lawyers preserving pages. $29 for 30 days, no subscription.

What FluxProof does not claim

A receipt proves that normalized public content changed between two observations. It does not prove why it changed, who caused it, or that the change is legally or commercially important. Your rules decide what deserves action.