# Services from api.kgninja.dev on Zero

> api.kgninja.dev serves 5 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.kgninja.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.kgninja.dev/health.json

## Services

- [KG-NINJA Summarize URL](https://www.zero.xyz/c/kg-ninja-summarize-url-fa8a39a9/llms.txt): $0.01/call via x402. Fetches a URL and returns a structured AI-generated title and summary of the page content for $0.01 USDC per call via x402 micropayment.
- [KG-NINJA Agent Visibility Report](https://www.zero.xyz/c/kg-ninja-agent-visibility-report-8b9ec8ff/llms.txt): $0.01/call via x402. Analyzes a target URL and returns a structured agent visibility report including a payment readiness score indicating how discoverable and accessible the URL is to AI agents.
- [KG-NINJA Shell Risk Check](https://www.zero.xyz/c/kg-ninja-shell-risk-check-abd2aa3b/llms.txt): $0.01/call via x402. Analyzes a shell command string and returns a risk level assessment with explanation of detected dangerous patterns.
- [KG-NINJA Hyperxosist Twitter/X Query Builder](https://www.zero.xyz/c/kg-ninja-hyperxosist-twitter-x-query-builder-bd9514f2/llms.txt): $0.01/call via x402. Builds a structured Twitter/X search query and URL from natural language search parameters like keywords, filters, date ranges, and engagement thresholds.
- [KG-Ninja Agent Error Fix Receipt](https://www.zero.xyz/c/kg-ninja-agent-error-fix-receipt-614d46ff/llms.txt): $0.01/call via x402. Accepts agent error logs, error messages, commands, and environment context to return a diagnostic fix receipt for troubleshooting agentic failures

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)