ShieldAPI | RAW SECURITY FEED

# ShieldAPI > Security intelligence for autonomous AI agents. Discover on Agentic Market, pay per request with x402 USDC on Base, no API keys or signup. ShieldAPI helps agents make safer decisions before they open links, trust tools, install skills, call MCP servers, process prompts, or use software packages. ## Agentic Finance Positioning Agentic finance is moving from human dashboards to autonomous x402 agents. ShieldAPI is the security and trust preflight layer those agents can call before they pay, connect, install, or execute. Relevant trust surfaces for x402 + ERC-8004/ERC-8183 agent stacks: - Prompt injection checks before processing untrusted user, tool, or website instructions. - MCP server trust checks before granting a remote server tool access. - AI skill/plugin and software package checks before installation or execution. - URL, domain, and IP reputation checks before payment, browsing, or data retrieval. ## Agentic Market / CDP Endpoints Use these portal-ready CDP paths when calling from Agentic Market or AgentCash. All return `402 Payment Required` until paid via x402. | Task | Method + URL | Price | |---|---|---:| | IP reputation / blacklist / Tor check | `GET https://shield.vainplex.dev/api/cdp/check/ip?ip=8.8.8.8` | $0.002 | | URL phishing / malware / brand impersonation check | `GET https://shield.vainplex.dev/api/cdp/check/url?url=https://example.com` | $0.003 | | Email breach exposure check | `GET https://shield.vainplex.dev/api/cdp/check/email?email=test@example.com` | $0.005 | | Prompt injection detection | `POST https://shield.vainplex.dev/api/cdp/check/prompt` body `{"prompt":"..."}` | $0.005 | | Domain reputation / DNS / blacklist check | `GET https://shield.vainplex.dev/api/cdp/check/domain?domain=example.com` | $0.003 | | HIBP k-anonymity password range lookup | `GET https://shield.vainplex.dev/api/cdp/check/password/range?prefix=5BAA6` | $0.001 | | Full composite security scan | `GET https://shield.vainplex.dev/api/cdp/full/scan?

{"openapi":"3.0.3","info":{"title":"ShieldAPI","description":"x402-native security intelligence API for AI agents. Use ShieldAPI as the paid security/trust preflight before an agent pays, connects to MCP, installs packages or skills, opens URLs, delegates work, or executes untrusted instructions. Pay per request with USDC micropayments on Base. No accounts, no API keys. Add shieldapi_source=<campaign> or X-ShieldAPI-Source for pilot attribution.","version":"3.0.0","contact":{"name":"Vainplex","u