Tool detail

SSL/TLS Certificate Check

Checks a public HTTPS host's SSL/TLS certificate: expiry, issuer, SANs, chain validity, hostname match, and protocol/cipher.

Categories: Security

Use when

check when a domain's TLS certificate expires
verify a host's certificate chain and hostname match
detect weak TLS protocols or ciphers on a public host

Not for

internal, localhost, or IP-literal hosts — these are rejected
non-HTTPS services

Inputs

GET query params: host (string, required, public hostname only); port (443|8443, optional, default 443)

Admitted input schema

{
  "type": "object",
  "properties": {
    "host": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "description": "Hostname to inspect (no scheme, no IP literal, not localhost or a reserved/internal suffix)"
    },
    "port": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "enum": [
        443,
        8443
      ],
      "description": "TLS port; restricted to an allowlist",
      "default": 443
    }
  },
  "required": [
    "host"
  ],
  "additionalProperties": false
}

Endpoint

Method: GET
URL: https://ssl.use.x402atlas.com/check

Payment

Protocol: x402
Listed price: 0.01 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: GET https://ssl.use.x402atlas.com/check
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z