TLS Check inspects which TLS/SSL protocol versions a server supports. It probes TLS 1.0 through 1.3, reports which are negotiable, and derives a security verdict — the highest supported version, whether deprecated protocols are still exposed, and a composite risk score.
Try it — live request, no key required
No key required to try it. Get a key to use it in your app.
{
"status": "ok",
"error": null,
"data": {
// TLS Checker response payload
}
}Code examples — ready to paste, with real parameters
curl "https://api.apiverve.com/v1/tlscheck?domain=amazon.com&port=443" \
-H "x-api-key: YOUR_API_KEY"YOUR_API_KEY with your key.Full reference in the docs →Call it however you build.
One endpoint, many ways in — REST with JSON, XML, YAML, and CSV, plus GraphQL and an MCP interface for AI agents.
JSON
Default REST response
XML
Markup format
YAML
Human-readable
CSV
Tabular export
GraphQL
Query language
MCP
For AI agents
Drop it into any site.
Add an interactive form for TLS Checker with a single snippet — no backend, no keys in your markup.
Other ways to use TLS Checker
Same data, same APIVerve account, same credit balance — one key works on all of them.