ContrastAPI

Query DNS, WHOIS, SSL, subdomains, and threat intel for a domain in one call. By default dns.txt is filtered to security-relevant entries (SPF, DMARC, DKIM, MTA-STS, TLS-RPT) and dns.total_txt_records reports the honest pre-filter count; pass include_all_txt=true for the raw TXT list. Use as a start

Perform comprehensive domain audit: combines domain_report + live HTTP security headers + technology fingerprinting. By default report.dns.txt is filtered to security-relevant entries (SPF, DMARC, DKIM, MTA-STS, TLS-RPT) and report.dns.total_txt_records reports the honest pre-filter count; pass incl

Active website security scan: runs the ContrastScan C engine (11 modules — HTTP security headers, SSL/TLS, DNS, redirect chain, information disclosure, cookie flags, DNSSEC, HTTP methods, CORS, HTML hygiene, deep CSP analysis) against the live site and enriches the raw result with severity-ranked vu

Composite tech-stack + CVE audit (MCP-only, no REST endpoint). Detects technologies on the target domain, queries CVE database for known vulnerabilities per product, enriches top-10 CVE candidates with CISA KEV federal patch deadlines, and checks public exploit / PoC availability. Identical for ever

Query comprehensive threat profile for an IP: Shodan host data, AbuseIPDB reputation, ASN/geolocation, and open ports. Use for IP investigation and SOC alert triage; for domain data use domain_report. Note: nested asn block always returns at most 50 IPv4/IPv6 prefixes — call asn_lookup with include_

Query all DNS record types (A, AAAA, MX, NS, TXT, CNAME, SOA) for a domain. Use for mail routing inspection, nameserver verification, or SPF/DMARC checks; for full overview use domain_report. TXT records are returned raw (no filter) — `total_txt_records` always carries the honest count (use domain_r

Retrieve WHOIS registration data: registrar, creation/expiry dates, nameservers, status. Use to verify domain ownership, age, expiration; for full audit use domain_report. Free: 30/hr, Pro: 500/hr. Returns {domain, whois: {registrar, creation_date, expiry_date, updated_date, name_servers, status, ra

Analyze SSL/TLS certificate: grade (A/B/C/D/F), protocol version, cipher suite, chain, expiry, Subject Alternative Names, and structured validation findings. Invalid certs (expired, self-signed, hostname mismatch, untrusted root) are reported as findings via valid=false + validation_errors[] rather

Discover subdomains using passive methods: Certificate Transparency logs + DNS brute-force (no active probing). Use to map organization's attack surface; non-intrusive. Response carries next_calls — capped at 5 ssl_check hints (one per first-five subdomain) so triage scales to large enumerations wit

Detect website technology stack: CMS, frameworks, CDN, analytics tools, web servers, languages (via HTTP headers + HTML analysis). Use for passive reconnaissance; for full audit use audit_domain. Free: 30/hr, Pro: 500/hr. Returns {technologies: [{name, category, confidence%, version}]}.

Check domain against abuse.ch URLhaus for known malware-distribution URLs (single source — for multi-feed correlation use ioc_lookup which adds ThreatFox and, for IPs, Feodo Tracker). Use for fast domain-level threat assessment; use phishing_check for specific URLs. Free: 30/hr, Pro: 500/hr. Returns

Retrieve Wayback Machine snapshots for a domain: first capture, latest, total count, snapshot list. Use to investigate domain history and age; for full audit use domain_report. Free: 30/hr, Pro: 500/hr. status='ok' means the count is authoritative (even when 0 → confirmed no archives). status='unava

Perform live HTTP GET and analyze security headers: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Permissions-Policy, Referrer-Policy. Use to audit live website headers; use check_headers to validate headers you already have. Free: 30/hr, Pro: 500/hr. By default header values are truncated to

Analyze email security: MX records, SPF policy, DMARC policy, DKIM probe across common+date-based selectors, mail provider, grade. Use to verify email-auth setup and phishing risk; for full audit use domain_report. Free: 30/hr, Pro: 500/hr. email_security.dkim_status reports honest evidence: 'verifi

Analyze domain email authentication posture: SPF, DMARC, DKIM with numeric score and findings. Dual-use: red-team (spoofing feasibility) + blue-team (posture audit). Score 0-100, grades A+-F. DKIM probing tests common selectors + recent dates; custom selectors must be supplied. Passive DNS-only; no

Check if email address uses a known disposable/temporary provider (Guerrilla Mail, Temp Mail, Mailinator, etc.). Use for input validation to detect throwaway signups; for domain reputation use threat_intel. Companion email-investigation tools: email_mx (deliverability + MX trust), domain_report on t

One-call email validation combining syntax + MX records + disposable check + role-address detection (admin@/info@/...) + free-provider classification (gmail/outlook/yahoo/...). Use BEFORE adding an email to a contact list, sending an outbound message, or auditing a lead-list dump — replaces 2-3 tool

Fetch + parse the target domain's robots.txt — sitemaps, per-User-agent allow/disallow rules, crawl-delay, Host directive. Use BEFORE crawling/scraping a target site (seo_audit, brand_assets, redirect_chain) to honour the site's published rules. status_code=404 means no robots.txt exists = implicit

Walk an HTTP redirect chain hop-by-hop, returning per-hop {url, status_code, location, latency_ms}. Use to deobfuscate URL shorteners (bit.ly / t.co / lnkd.in), audit suspicious links from phishing investigations, or trace marketing tracking redirects. SSRF-guarded: each redirect target's resolved I

Scrape a domain's homepage `<head>` for public brand assets — favicon, og:image, theme-color, og:site_name, JSON-LD `Organization.logo`. Use to enrich CRM records, build company-card UIs, or correlate a lead's site to their visual identity (no manual screenshot required). Strictly homepage-only (pat

One-shot SEO audit of a domain's homepage with a 0-100 composite score + a `missing_signals` list of concrete fixes. Use BEFORE pitching SEO work to a prospect, when triaging a lead's marketing maturity, or as a structured pre-flight before deeper auditing tools (Lighthouse / SEMrush). 10 audit rule

Deterministic GEO / AI-visibility readiness audit of a domain's homepage with a 0-100 score + a `missing_signals` fix list. Answers "can AI assistants (ChatGPT, Claude, Perplexity, Google AI) discover, crawl, and recommend this site?" using STRUCTURAL signals ONLY — no LLM is queried, fully determin

Validate and analyze phone number: country, region, carrier, line type (mobile/landline/VoIP), timezone, formatted versions. Use to verify phone legitimacy and detect fraud risks. Requires E.164 format (+1234567890). Companion OSINT identity-investigation tools: username_lookup (social-platform hand

Query comprehensive IP intelligence: reverse DNS, ASN + holder name + country inline (RIPE Stat, Phase 1), open ports, hostnames, vulnerabilities (Shodan InternetDB enriched with severity + cvss_v3 from local cve.db — Phase 2 v1.16.0 BREAKING; vulns is now list[VulnInfo] {cve_id, severity, cvss_v3}

Look up Autonomous System Number (ASN) for a domain or IP: AS number, organization, IPv4/IPv6 prefixes. Use to identify network operator and IP range ownership. Default returns first 50 prefixes per family — set include_full_prefixes=True for full list. Free: 30/hr, Pro: 500/hr. Returns {asn, asn_na

Retrieve detailed CVE data by ID: description, CVSS v3.1 + vector, CVSS v2 (always emitted), EPSS score + percentile, CISA KEV status (expanded: due_date, required_action, ransomware flag, vendor_project, product, vulnerability_name, short_description, notes, cwes, date_removed when in_kev=true), NV

Composite CVE risk score (0-100) — fuses CVSS, EPSS, KEV, and PoC into a single agent-ready triage signal. Formula: CVSS*0.20 + EPSS*0.35 + KEV*0.30 + PoC*0.15 (each component rescaled to 0-100 before weighting). Multiplicative boosters applied in order: KEV+PoC combo (*1.15), critical-severity-with

Parse a CVSS v3.x vector string into a per-metric breakdown plus a recomputed base score. Returns the canonicalized vector, version (3.0 or 3.1), base_score, base_severity (NONE/LOW/MEDIUM/HIGH/CRITICAL), and the eight base metrics: attack_vector (NETWORK/ADJACENT_NETWORK/LOCAL/PHYSICAL), attack_com

Search CVE database with filters: product/vendor, severity, published date range, EPSS score, CWE, CVSS range, CISA KEV status. Default response is SLIM per-result (cve_id, summary, severity, cvss_v3, cwe_id, epss, kev, total_products, published, modified, sources) — pass include='full' for descript

List CVEs indexed from MITRE/GHSA BEFORE NVD publication (early-warning, freshest data). By default each result is slim (no description, no cvss_breakdown, no affected_products list, no references) — pass include='full' for the same payload shape as cve_lookup; for drill-down on a single CVE prefer

Search public exploits/PoC for a specific CVE across three sources: (1) GitHub Advisory Database (sources.github.advisories[]), (2) Shodan CVEDB references (sources.shodan_refs.results[] — packetstorm/seclists/vendor URLs cited by Shodan; results capped at SHODAN_REFS_LIMIT default 200, truncated=tr

Batch query multiple CVEs (up to 50 per call, same for Free and Pro): retrieve full CVE details for all in 1 request instead of N. By default each CVE's affected_products is truncated to the first 20 entries (total_products reports honest count) and references to the first 10 (total_references repor

Look up CISA KEV (Known Exploited Vulnerabilities) full record for a CVE. Returns federal patch deadline (due_date), CISA-specified required_action remediation, known ransomware association, vendor/product, the CISA-given common name (e.g. 'Log4Shell'), CISA-reported CWE list, plus lifecycle metadat

Look up MITRE CWE (Common Weakness Enumeration) catalog record from research view 1000. Default response is SLIM (first 3 mitigations, first 3 examples; extended_description is null) — pass include='full' for the verbose record (full mitigations + examples lists, populated extended_description). Ret

Look up a MITRE ATLAS technique — the AI/ML adversarial attack catalog. ATLAS catalogues TTPs targeting machine learning systems: prompt injection, model evasion, training data poisoning, model theft, etc. Roughly 80% of ATLAS techniques are AI/ML-specific (no ATT&CK bridge); 20% mirror an enterpris

Bulk ATLAS technique lookup — retrieve full records for up to 50 techniques in a single request instead of N separate atlas_technique_lookup calls. Designed as the natural follow-up to atlas_case_study_lookup, whose techniques_used array can be passed directly. Each item is the same shape as atlas_t

Search the MITRE ATLAS catalog of AI/ML attack techniques by keyword, tactic, or maturity. Default response is SLIM (description truncated to 240 chars per row); pass include='full' for the verbose record. Pass exclude_id when chaining from atlas_technique_lookup to skip self in sibling-tactic searc

Look up a MITRE ATLAS case study — a documented real-world AI/ML attack incident. Each case study links a sequence of ATLAS techniques (techniques_used) to the incident. Default response is SLIM (description truncated to 240 chars); pass include='full' for the verbose narrative. Use this after atlas

Search ATLAS case studies (real-world AI/ML attack incidents) by keyword or referenced technique. Default response is SLIM (description truncated to 240 chars per row); pass include='full' for the verbose summary. Useful when the user has a technique in hand and wants to see incidents that exercised

Look up a MITRE D3FEND defense technique. D3FEND is the canonical defensive counterpart to ATT&CK — each defense is classified into one of 7 tactics (Model/Harden/Detect/Isolate/Deceive/Evict/Restore) and may target a specific digital artifact (e.g. 'Access Token'). Response includes attack_techniqu

Search the MITRE D3FEND catalog of defensive techniques by keyword, tactic, or targeted artifact. Default response is SLIM (drops `uri` from each row — saves ~60 chars/row, ~30% on popular drills); pass include='full' for the verbose record. Pass exclude_id when chaining from d3fend_defense_lookup t

Reverse lookup: given an ATT&CK T-code, return D3FEND defenses that mitigate it. This is the bridge from offensive intelligence (ATT&CK / ATLAS / CVE) to defensive playbook. Pair with cve_lookup or atlas_technique_lookup output — when those carry an ATT&CK id, call this tool to surface the mitigatio

Batch coverage breakdown: given a list of ATT&CK T-codes, return distinct defense counts per D3FEND tactic + identify which techniques have NO D3FEND mapping (undefended_techniques). Use to assess the defensive posture of an entire attack campaign or threat model in one call. defended_techniques is

Look up a single Sigma detection rule by UUID from the SigmaHQ corpus (~3,200 rules, refreshed daily at 02:00 UTC). Returns the full rule with title, description, status (stable/test/experimental/deprecated/unsupported), level (informational/low/medium/high/critical), logsource (product/category/ser

Bulk Sigma rule lookup — retrieve full records for up to 50 rule UUIDs in a single request instead of N separate sigma_rule_lookup calls. Designed for triage workflows where multiple rule ids are known (e.g., from a SIEM alert batch or a tagged detection bundle). Each item is the same shape as sigma

Enrich Indicator of Compromise (IP/domain/URL/hash) by auto-detecting type and querying abuse.ch feeds. Per-type source coverage: hash → ThreatFox only (Feodo and URLhaus do not index hashes); IP → ThreatFox + Feodo Tracker + URLhaus; domain / URL → ThreatFox + URLhaus. verdict.sources_queried lists

Query MalwareBazaar for file hash (MD5/SHA1/SHA256): malware family, file type, size, tags, first/last seen, download count. Use to check if file hash is known malware; use ioc_lookup for auto-detection of all IOC types. Companion malware-investigation tools: ioc_lookup (multi-source: ThreatFox + Fe

Check if SHA-1 hash appears in Have I Been Pwned (HIBP) breach dataset using k-anonymity (5-char prefix only, full hash never leaves tool). Use for password breach audits; read-only, no data stored. Companion OSINT investigation tools: hash_lookup (file-hash malware family lookup, different namespac

Query URLhaus for a specific URL and its host. is_malicious is True only when there is ACTIVE evidence — exact URL match with url_status='online' (or unknown) OR host has urls_online > 0. URLhaus retains historical records forever, so a host can have url_count > 0 with urls_online == 0; in that case

Batch query multiple IOCs (IP/domain/URL/hash, up to 50 per call, same for Free and Pro) in 1 request: auto-detects type + queries abuse.ch feeds per-indicator. Per-type source coverage matches ioc_lookup: hash → ThreatFox only; IP → ThreatFox + Feodo + URLhaus; domain / URL → ThreatFox + URLhaus. E

Scan source code (or snippet) for hardcoded secrets — cloud provider keys, API tokens, connection strings, private keys, passwords. Supports Python, JavaScript, TypeScript, Java, Go, Ruby, Shell, Bash. Use to detect leaked credentials before commit; for injection detection use check_injection. Free:

Scan source code for injection vulnerabilities: SQL injection, command injection, path traversal via unsafe string concatenation/unsanitized input. Supports Python, JavaScript, TypeScript, Java, Go, Ruby, Shell, Bash. Use to detect input-handling bugs; for secrets use check_secrets. Companion code-s

Audit project dependencies (npm/PyPI/Maven/RubyGems/etc.) against CVE database: find known vulnerabilities in your package list. Bulk query up to 50 packages per call (same for Free and Pro). Use for dependency security scanning; use cve_lookup for single CVE. Free: 30/hr (1 per package), Pro: 500/h

Search for username across 15+ social/dev platforms (GitHub, Reddit, X/Twitter, LinkedIn, Instagram, TikTok, Discord, YouTube, Keybase, HackerOne, etc.). Use for OSINT investigations and identity verification. Free: 30/hr, Pro: 500/hr. Returns {username, total_found, platforms: [{name, exists, url,

Validate HTTP security headers you provide (JSON): CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Permissions-Policy, Referrer-Policy against best practices. Use to test header config before deployment or validate non-public servers; use scan_headers to fetch live. Free: 30/hr, Pro: 500/hr. By