SSL Check API • Live on Bitcoin mainnet

Inspect certificate and TLS posture in one call.

Use a funded session to check certificate validity, issuer, expiry, protocol, cipher, chain details, and SAN data for a domain. Built for certificate reviews, enrichment, expiry checks, and security workflows.

5 sats / call
POST /api/ssl-check
Certificate and TLS metadata

What It Does

SSL Check opens a live TLS connection to the target domain and returns normalized certificate metadata that is easier to consume than raw certificate tooling output.

  • Returns issuer, validity dates, expiry, and SAN data
  • Includes protocol and cipher details when available
  • Useful for domain reviews and certificate expiry checks
  • Good fit for scripts and agent-driven security workflows

Why It Helps

TLS metadata matters in many domain and security workflows, but it is awkward to normalize repeatedly from raw tools. This endpoint gives you a clean response shape that can be reused across dashboards, checks, and automation.

  • Useful for certificate inventories and expiry tracking
  • Pairs naturally with DNS Lookup, WHOIS, and Headers Audit
  • Good building block for broader domain enrichment
  • Current deployment is Bitcoin mainnet

Example Request

curl -X POST https://arkapi.dev/api/ssl-check \ -H "Authorization: Bearer ak_your_token" \ -H "Content-Type: application/json" \ -d '{"domain":"example.com"}' | jq

Use a funded token from the Fund page. The endpoint is also documented in /openapi.json and listed in the live catalog.

Example Body

{ "domain": "example.com" }
  • domain is required
  • Use a valid domain name with a public TLS endpoint

Example Response

{ "success": true, "data": { "domain": "example.com", "valid": true, "issuer": "Let's Encrypt", "not_before": "2026-02-01T00:00:00Z", "not_after": "2026-05-01T23:59:59Z", "days_until_expiry": 31, "protocol": "TLS 1.3", "cipher_suite": "TLS_AES_256_GCM_SHA384", "subject_alt_names": [ "example.com", "www.example.com" ] }, "cost_sats": 5, "response_ms": 76, "endpoint": "/api/ssl-check" }

Good Uses

For related security workflows, see DNS Lookup, WHOIS, and Headers Audit.

Related APIs

Discovery