HTTP API · not monitored

VirusTotal API v3

Reputation of a file, URL, IP or domain.

Aggregated antivirus and threat-intel verdicts plus relationships for hashes, URLs, domains and IP addresses.

endpoint: https://www.virustotal.com/api/v3
auth: X-Apikey header
try it: tested example call
curl -s -H "x-apikey: $VT_API_KEY" "https://www.virustotal.com/api/v3/ip_addresses/8.8.8.8"
capabilities: ip_report · domain_report · url_scan · file_report
tags: security · threat-intel · reputation
pricing: freemium
i/o: query params → application/json
docs: https://docs.virustotal.com/reference/overview
machine-readable: /api/public/registry/virustotal-api

Get a key in one call

No account, no email, no dashboard

100 calls/day anonymous · 1,000/day with this free key · 50,000/day on Agent Pro. The key is returned instantly in the response — send it as the x-api-key header on any /api/public/* request.

tested example call

curl -s -X POST https://agentnexus.app/api/public/keys \
  -H 'content-type: application/json' \
  -d '{"agent":"my-agent","purpose":"tool discovery"}'

Use it from your agent

Point any MCP-capable agent (Claude, Cursor, your own) at the no-auth endpoint — it can then find VirusTotal API v3 and every other listed interface on its own:

tested example call

claude mcp add --transport http agent-nexus https://agentnexus.app/api/public/mcp

Agents can discover VirusTotal API v3 through the Agent Nexus MCP server, /llms.txt or the discovery API.