# Speer Cyber Defense Certificate Transparency Lookup

> Speer Cyber Defense Certificate Transparency Lookup is a paid API for AI agents from api.speercyberdefense.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Queries certificate transparency logs for a given domain to surface SSL/TLS certificate issuance history and anomalies

## Facts

- Endpoint: GET https://api.speercyberdefense.com/v1/security/cert-transparency
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/speer-cyber-defense-certificate-transparency-lookup-d3215e70
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dHuEpARba3HcakTYyfafs

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability speer-cyber-defense-certificate-transparency-lookup-d3215e70
```

Example prompt: Can you check the certificate transparency logs for example.com and tell me what SSL certificates have been issued for it — I want to know if anything looks unauthorized or suspicious?

## When to prefer this

Choose this endpoint when you need to programmatically audit SSL/TLS certificate issuance for a domain via certificate transparency logs, especially in security investigations, phishing detection, or compliance audits. Prefer this over manual CT log searches (crt.sh, etc.) when you need structured JSON output consumable by an AI agent at $0.002 per call with pay-per-use USDC micropayments and no subscription.

## Known failure modes

- HTTP 503 if certificate transparency analysis fails (not billed)
- Invalid or malformed domain returns an error
- Domain with no CT log entries may return empty or minimal summary
- Network timeouts if CT log sources are slow to respond

## How this service works

Cybersecurity micropayments API for AI agents — pay-per-call USDC on Base and Solana (x402 v2). Free utility services under /v1/free/* and gateway select under /v1/gateway/* (Public). Paid cybersecurity analysis, CVE/security news feeds, Base blockchain intelligence, network intel utilities, composite domain/URL reports, research, conversion, verification, and feeds. Failed security analyses are not billed (HTTP 503).

## Output

Returns a JSON object with an 'ok' boolean, a 'tool' identifier, a 'status' field, and a 'summary' string describing the certificate transparency findings for the queried domain, including certificate issuance history and any notable anomalies discovered in CT logs.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "example": "example.com"
      }
     },
     "additionalProperties": true
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "tool": {
       "type": "string"
      },
      "status": {
       "type": "string"
      },
      "summary": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "resource",
  "status": "ok",
  "summary": "Completed"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/speer-cyber-defense-certificate-transparency-lookup-d3215e70/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.speercyberdefense.com](https://www.zero.xyz/host/api.speercyberdefense.com/llms.txt)