Server definition

Hash: sha256:a9134c5f0f5cde07a010f1e36da50d0ba9da9870462588e126c0ab18f099a20c
What it is: What a remote MCP server returned when asked what it offers: 1 tools

The blob, as servednamed by its sha256

{
  "instructions": "Free web tool at heade.rs, made by Colin Armstrong, that looks up any domain, IP address or network (AS number) and reports its hosting, routes, latency, registration, DNS, email security, HTTP headers and support for AI crawlers and agents. Call lookup with a domain, IP address, AS number or URL. Reports are Markdown by default; ask for JSON only when you need every field, since it's several times longer. Lookups are limited to 30 a minute per client, and each report links to its page on heade.rs.",
  "tools": [
    {
      "description": "Look up a domain, IP address or network (AS number) on heade.rs and return its report. For a domain or IP address: where it's hosted (network, BGP prefix, RPKI, location, cloud region, CDN), registration (RDAP/WHOIS), DNS records and DNSSEC, email security (SPF, DMARC, MTA-STS, BIMI), the certificate, a security-header grade and the response headers, the website's tech stack with end-of-life and vulnerability checks, which AI crawlers it lets in and what it offers agents, and open ports from Shodan InternetDB. For an AS number: its prefixes, RPKI and ASPA, upstreams and peers, internet exchanges and registration. Data is live or mirrored within the hour; a lookup takes a few seconds.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "format": {
            "default": "markdown",
            "description": "markdown (the default, about 3,000 tokens for a domain) or json (every field, several times longer).",
            "enum": [
              "markdown",
              "json"
            ],
            "type": "string"
          },
          "query": {
            "description": "A domain (example.com), IPv4 or IPv6 address (1.1.1.1, 2606:4700::1111), AS number (AS13335) or URL (the hostname is used).",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "lookup",
      "outputSchema": null
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:a9134c5f0f5cde07a010f1e36da50d0ba9da9870462588e126c0ab18f099a20c | sha256sum