SSL Checker API
Check SSL/TLS certificate validity, expiry, issuer, chain details, and security grade for any domain. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Power your agent
The publisher's own URL. Not a PlugMCP endpoint.
Host a copy with our keys and logs.
https://ssl-checker.api.klymax402.com/mcpThe Claude button above opens Claude with the name and URL filled in. You still confirm it there.
claude mcp add --transport http io.github.br0ski777-ssl-checker https://ssl-checker.api.klymax402.com/mcpRun in a terminal.
{ "mcpServers": { "io.github.br0ski777-ssl-checker": { "command": "npx", "args": [ "-y", "mcp-remote", "https://ssl-checker.api.klymax402.com/mcp" ] } }}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
LaunchFrom the publisher
Check SSL/TLS certificate validity, expiry, issuer, chain details, and security grade for any domain. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
SSL certificate check — validity, expiry, issuer, chain, grade. x402 micropayment.
Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
{
"mcpServers": {
"ssl-checker": {
"url": "https://ssl-checker.api.klymax402.com/mcp"
}
}
}
curl -X POST "https://ssl-checker.api.klymax402.com/api/check" \
-H "Content-Type: application/json" \
-d '{"domain":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body
Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
security_check_sslUse this when you need to check if a domain's SSL/TLS certificate is valid, when it expires, and who issued it. Returns structured certificate data in JSON.
Parameters
Example response:
{"domain":"example.com","valid":true,"expiryDate":"2026-12-15","daysRemaining":245,"issuer":{"name":"DigiCert","organization":"DigiCert Inc"},"protocol":"TLSv1.3","securityGrade":"A+"}
When to use: deploying a website, FOR monitoring certificate expiration, auditing security posture, and validating HTTPS setup.
Not for: DNS lookup (use network_lookup_dns), HTTP headers analysis (use network_analyze_headers), port scanning (use network_scan_ports).
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
MIT
© 2026 MCP Directory.
SSL certificate check — validity, expiry, issuer, chain, grade. x402 micropayment.
{ "mcpServers": { "io.github.br0ski777-ssl-checker": { "url": "https://ssl-checker.api.klymax402.com/mcp", "headers": {} } }}Tools
No tool list yet. Remote servers get one after the first health check.
FAQ
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
No required environment variable is listed on this record.
SSL Checker API is reached over HTTP.
Last checked 2026-11-08. SSL certificate check — validity, expiry, issuer, chain, grade. x402 micropayment.