ContrastAPI

Security intelligence API for AI models and developers. CVE lookup, domain reconnaissance, and code security verification. Structured JSON with LLM-optimized summaries.

Live: https://api.contrastcyber.com

Endpoints

Domain Intelligence

GET /v1/domain/{domain}        Full domain report
GET /v1/dns/{domain}           DNS records
GET /v1/whois/{domain}         WHOIS lookup
GET /v1/subdomains/{domain}    Subdomain enumeration
GET /v1/certs/{domain}         CT log certificates
GET /v1/ip/{ip}                Reverse DNS

CVE Intelligence

GET /v1/cve/{cve_id}           CVE details + EPSS + KEV
GET /v1/cves?product=&severity= Search CVEs
GET /v1/cves/recent?hours=24   Latest CVEs
GET /v1/cves/kev               CISA exploited vulns
GET /v1/epss/{cve_id}          Exploit probability

Code Security

POST /v1/check/headers         Validate HTTP security headers
POST /v1/check/secrets         Detect hardcoded secrets
POST /v1/check/injection       SQL/cmd injection patterns
POST /v1/check/dependencies    Check packages for known CVEs

Quick Start

curl https://api.contrastcyber.com/v1/domain/example.com

{
  "domain": "example.com",
  "summary": "example.com resolves to 93.184.216.34. SSL by DigiCert. No WAF. 3 subdomains.",
  "dns": { "a": ["93.184.216.34"], "ns": ["a.iana-servers.net"] },
  "whois": { "registrar": "RESERVED-Internet Assigned Numbers Authority" },
  "ssl": { "issuer": "DigiCert", "not_after": "Mar 01 2025" },
  "subdomains": { "count": 3, "subdomains": ["www.example.com"] },
  "waf": { "waf_present": false }
}

Authentication

Tier	Rate Limit	Auth
Free	100 req/hr	No key needed
Pro	1,000 req/hr	Authorization: Bearer cc_xxx

Pro keys available at api.contrastcyber.com -- $9/month.

Docs

• Swagger UI: https://api.contrastcyber.com/docs
• OpenAPI spec: https://api.contrastcyber.com/openapi.json
• LLM discovery: https://api.contrastcyber.com/llms.txt

Data Sources

Source	Records	Update
NVD (NIST)	340k+ CVEs	Every 2 hours
CISA KEV	1,500+ exploited vulns	Every 2 hours
FIRST EPSS	323k+ exploit scores	Every 2 hours

Self-Hosting

git clone https://github.com/UPinar/contrastapi.git
cd contrastapi
python3 -m venv venv
venv/bin/pip install -r requirements.txt
cd app
../venv/bin/uvicorn main:app --host 127.0.0.1 --port 8002

Tests

cd app
python -m pytest tests/ -v

270 tests covering auth, rate limiting, validation, database operations, domain intelligence, CVE intelligence, code security, and API routes.

Stack

• Runtime: Python 3.12, FastAPI, uvicorn
• Database: SQLite (WAL mode, 3 databases)
• DNS: dnspython
• HTTP: httpx

License

MIT