Your dataset, fresh every day, with what changed

Who it's for

Anyone whose notebook, ETL job or app already pulls a CyberMax dataset and needs it current every morning, with history and the changes.

Try it

Pick a feed and see what changed in the newest daily build.

Real sample output

Shape of /api/changes (counts from a real build of the Form 4 feed on its first day).

{
  "feed": "form4",
  "title": "SEC Form 4 insider transactions",
  "date": "2026-10-09",
  "since": null,
  "data_date": "2026-10-09",
  "files": {
    "data/transactions.parquet": {
      "key": "whole row",
      "rows": 1305,
      "added": 1305,
      "removed": 0,
      "changed": 0
    }
  },
  "rows": "https://deltawren.cybermaxtools.com/v1/form4/diff/2026-10-09/<file> (key needed)"
}

Limits, plainly

Free and rate limited so it stays fast for everyone. A bulk and scheduled version for big lists is coming to the Apify Store.

• Free: the feed list, each feed's manifest.json and the daily change counts (diff/<date>.json), 200 requests a day per IP.
• Paid keys open the files: today's files, daily history and the changed rows, for the feed you buy (or every feed with All feeds). Plans from $19/month.
• History starts on the feed start date (9 Oct 2026) and grows every day; full daily snapshots are kept 90 days (domain ranks: daily diffs plus a monthly snapshot).
• Data comes from public sources (CISA, FIRST, NIST NVD, SEC EDGAR, Majestic, Common Crawl) under their own licences, listed in each dataset card.

Need answers, not files?

The Kevscope, Insidewell and Linkheft APIs answer per CVE, ticker or domain, with free daily calls.

Get an API key

Daily data feeds as files: the same layout and schema as the free CyberMax Hugging Face datasets, refreshed every day, with daily history and a what-changed diff per file. One key per feed, or All feeds.

14-day money-back promise: if it doesn't work as described, email us within 14 days and we fix it or refund you in full. Refund terms.

Pay with card, Apple Pay, Google Pay or Link through Stripe Checkout. Prices are in USD; where your country charges VAT or sales tax, Stripe adds it at checkout and shows it before you pay. Your key appears on the page you return to right after checkout: save it. Manage or cancel any time at deltawren.cybermaxtools.com/manage. Send it as x-api-key: YOUR_KEY (or Authorization: Bearer YOUR_KEY, which MCP clients support). Check usage at /key. Failed calls are not counted. Priced at or under the entry tier of each category's rivals. Open Domain Ranks: Moz API, DataForSEO, Ahrefs, OpenPageRank. Kevscope CVE + KEV + EPSS: OpenCVE (EUR 19/49 a month), Vulners ($600). Riskroll SEC 10-K/10-Q sections: sec-api.io ($49-55/mo), EODHD ($59.99/mo), Financial Modeling Prep ($19-99/mo). SEC Form 4 insider transactions: sec-api.io ($55/mo), FMP ($19/mo), EODHD ($59.99/mo).

curl -s "https://deltawren.cybermaxtools.com/api/changes?..." -H "x-api-key: YOUR_KEY"

# MCP (Claude Desktop, Cursor, VS Code)
{ "mcpServers": { "deltawren": { "type": "http", "url": "https://deltawren.cybermaxtools.com/mcp",
  "headers": { "Authorization": "Bearer YOUR_KEY" } } } }

# Usage so far
curl -s https://deltawren.cybermaxtools.com/key -H "x-api-key: YOUR_KEY"

Use the API

JSON over HTTPS, CORS enabled, no key. GET for quick calls, POST a JSON body for lists. Spec: openapi.json · llms.txt

curl -s "https://deltawren.cybermaxtools.com/api/changes?feed=kevscope"

# lists: POST a JSON body
curl -s -X POST https://deltawren.cybermaxtools.com/api/changes \
  -H "content-type: application/json" \
  -d '{"feed":"kevscope"}'

import requests

r = requests.post("https://deltawren.cybermaxtools.com/api/changes",
                  json={"feed":"kevscope"}, timeout=30)
r.raise_for_status()
for row in r.json()["null"]:
    print(row)

Endpoints: /api/feeds every feed: dataset, cadence, history and plans · /api/changes what changed in a feed since the previous day (counts per file)

Add it to your AI agent (MCP)

A remote MCP server at https://deltawren.cybermaxtools.com/mcp (streamable HTTP, no auth). Read-only tools with JSON schemas, so agents know exactly what to send.

// Claude Desktop, Cursor, VS Code, any MCP client (remote, no key)
{
  "mcpServers": {
    "deltawren": { "type": "http", "url": "https://deltawren.cybermaxtools.com/mcp" }
  }
}

# Claude Code
claude mcp add --transport http deltawren https://deltawren.cybermaxtools.com/mcp

# Tools: feed_list, feed_changes
# e.g. feed_list({"feed":"domain-ranks"})

• feed_list
  Every Deltawren daily data feed: source dataset, refresh cadence, history kept, manifest URL and plans.
• feed_changes
  Rows added, removed and changed per file in one feed since the previous daily build.

FAQ