# SSL Certificate Checker — Validity, Expiry & Grade

> SSL Certificate Checker — Validity, Expiry & Grade — axel-belfort-ssl-checker. Use this tool when you need to verify the security and validity of an SSL/TLS certificate for a given domain, checking its expiry date, issuer chain, and security grade. It solves problems related to security monitoring, expiry alerting, and SSL audit automation, providing outputs such as validity, expiry time, issuer, grade, and protocol. Ideal for use cases requiring certificate validation, it offers a simple interface with no API key required, making it easy to integrate into existing security workflows.

Canonical page: https://skillsregistry.net/skills/axel-belfort-ssl-checker  
JSON: https://api.skillsregistry.net/v1/skills/axel-belfort-ssl-checker

## Description

SSL/TLS certificate checker API for AI agents. Verify certificate validity, expiry date, issuer chain, protocol version, cipher strength, and security grade for any domain.

Tools: security_check_ssl.

Use this for security monitoring, expiry alerting, or SSL audit automation. IMPORTANT: For comprehensive trust assessment (SSL + DNS + WHOIS + headers), use trust_score_evaluate instead.

Returns: {valid, expiresIn, issuer, grade, protocol}. No API key required — x402 micropayment $0.002/call on Base L2.

## Trust

- **Trust score (0–1):** 0.73
- **Verification tier:** verified
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/axel-belfort/ssl-checker)
- **Repository:** <https://github.com/Br0ski777/ssl-checker-x402>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "axel-belfort-ssl-checker"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/axel-belfort-ssl-checker` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/axel-belfort-ssl-checker/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt