# NEXUS Agent Utilities > Agent-native paid utilities and custom automation services. ## Discovery - Catalog: https://x402.nexusword.it/catalog - OpenAPI: https://x402.nexusword.it/openapi.json - MCP: https://x402.nexusword.it/mcp - MCP metadata: https://x402.nexusword.it/.well-known/mcp - Registry name: io.github.ilacop8585/nexus-agent-utilities - GitHub: https://github.com/ilacop8585/nexus-agent-utilities ## Capabilities - JSON normalization and diff - text cleanup and deterministic QA - embedded JSON extraction - source-code risk scanning - custom AI and automation work via nexus-revenue@agentmail.to Payment network: Base mainnet (USDC) for x402 utilities. No subscription and no seller-side automatic spend.