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s4e.io

Developer Tools
https://s4e.io/
S4E is a free cybersecurity platform with 11,000+ vulnerability scanners. Detect SQL injection, XSS, CVEs, misconfigurations and more. No account required to start.
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Tools verified

page: Every page

search_s4e_toolsAnswer

Search S4E free vulnerability scanners by name, category, or keyword and open the results page.

View tool JSON
{
  "name": "search_s4e_tools",
  "kind": "answer",
  "impl": "imperative",
  "description": "Search S4E free vulnerability scanners by name, category, or keyword and open the results page.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "query": {
        "type": "string",
        "description": "Search query, for example sql injection or xss"
      }
    },
    "required": [
      "query"
    ],
    "additionalProperties": false
  },
  "page": "/"
}
start_free_scanAction

Prefill the homepage fast-scan form with a domain or IP. The user must complete captcha and click Start Free Scan.

View tool JSON
{
  "name": "start_free_scan",
  "kind": "act",
  "impl": "imperative",
  "description": "Prefill the homepage fast-scan form with a domain or IP. The user must complete captcha and click Start Free Scan.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "asset": {
        "type": "string",
        "description": "Domain, subdomain, or IPv4 address to scan"
      }
    },
    "required": [
      "asset"
    ],
    "additionalProperties": false
  },
  "page": "/"
}
open_s4e_pageAction

Navigate this tab to a first-party S4E marketing page such as /tools, /platform, or /plans.

View tool JSON
{
  "name": "open_s4e_page",
  "kind": "act",
  "impl": "imperative",
  "description": "Navigate this tab to a first-party S4E marketing page such as /tools, /platform, or /plans.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "path": {
        "type": "string",
        "description": "Site-relative path, for example /platform"
      }
    },
    "required": [
      "path"
    ],
    "additionalProperties": false
  },
  "page": "/"
}
get_s4e_agent_overviewAnswer

Return how agents authenticate and which MCP/API endpoints to use. Does not call protected APIs.

View tool JSON
{
  "name": "get_s4e_agent_overview",
  "kind": "answer",
  "impl": "imperative",
  "description": "Return how agents authenticate and which MCP/API endpoints to use. Does not call protected APIs.",
  "inputSchema": {
    "type": "object",
    "properties": {},
    "additionalProperties": false
  },
  "page": "/"
}