Security MCP servers

Pay-per-call x402 DNS, WHOIS/RDAP, availability, email security, SSL check, CT subdomains.

Passport, ID and MRZ recognition via doc.cheap – Free: 100 documents every month, then $0.01 each

Context and control for any AI. Agent identity, scoped access, and proof across tools.

Runs an eight-stage isolation test against your staging Supabase and issues a signed attestation.

Screen Base smart contracts and B20 tokens: free on-chain check, paid Flash Audit over x402 (USDC).

CVE, KEV, MITRE ATT&CK, CWE and detection graph for AI agents; every link names its source.

Test and debug your AI agent's Web Bot Auth (RFC 9421) signature: is it valid, and what to fix?

AI helper for choosing and speccing network & security products from Cisco, Arista, Juniper and more

Agent website testing: browser QA, visual regression, Markdown extraction, and security checks.

Human approval for irreversible AI agent actions, bound to the exact tool call by a passkey tap

Free, read-only security scanner for remote MCP servers, before you connect them.

The trust harness for AI agents. Set what an agent can do before it acts.

Verificação de segurança e conformidade de sites: cabeçalhos, TLS, DNS, e-mail, LGPD e pentest.

Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.

SSL/TLS scanning, free Let's Encrypt issuance, and certificate-expiry monitoring.

Find free VPN servers by country and protocol. Read-only access; no account or API key.

Pay-per-call agent tools, x402 v1+v2, USDC Base/Solana: audit, extract, enrich, URL safety, crypto

DNS, WHOIS, SSL, IP geolocation, email validation, DNSBL blacklist, HTTP headers, subnet calc.

RFC 3161 + authorization expiry: https://767-2676.com/prove-action-before-authorization-expired

Website and company intel for agents: DNS, WHOIS, SSL, tech stack, email security, profiles

In-band MCP sleeper sentinel — mid-session diff and quarantine inside your own client's session.

Safety checks for AI agents paying on Base: free SpendGuard, paid x402 token risk and preflight.

Grade Claude Code, Gemini CLI and Cursor configs for risky permissions; get public config stats.

Audit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402.

Autonomous agent guardrails, bash sandboxing, MCP rugpull diffing & prompt firewalls.

Local checks for sudo, systemd, sshd, ufw, and secret leaks before an agent applies them.

50-vector prompt-injection, llms.txt poisoning, SSRF & OpenAPI scanner ($1 USDC).

Real-time B2B counterparty KYB, SSL, DNSSEC & DMARC/SPF trust verifier ($1 USDC).