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qualityC
maintenanceEnables auditing x402 payment logs against delivery logs to issue signed proof-of-delivery receipts and verify payer spend health.
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"author:nexus-mcp-infra" matching MCP servers:
- FlicenseNot gradedqualityBmaintenanceProvides URL metadata extraction (title, description, image, site name) from OpenGraph and meta tags for link previews.
- FlicenseNot gradedqualityCmaintenanceEnables users to verify whether an ERC-8004-registered agent is currently reachable by resolving its on-chain registration and performing a live MCP handshake, returning verdicts such as REGISTERED_UNREACHABLE or AGENT_NOT_FOUND.
- FlicenseNot gradedqualityBmaintenanceEnables conversion between PDF/Office documents and structured JSON, supporting extraction and generation of document content.
- FlicenseNot gradedqualityBmaintenanceMCP server that exposes WebSocket session management as tools, allowing AI agents to open persistent connections, send typed frames, drain buffered messages, and monitor per-frame Shannon entropy to detect schema divergence.
- FlicenseNot gradedqualityCmaintenanceProvides normalized search over public-sector tender notices from TED, covering Spain and the rest of the EU. Supports filtering by country, keyword, CPV prefix, and publication recency, returning tender details and related links.
- FlicenseNot gradedqualityBmaintenanceEnables stateless similarity search over pre-computed vector corpora using NMI and cosine fusion with entropy-calibrated weighting. Provides tools for ranking, scoring, outlier detection, and alpha calibration for AI agents.
- FlicenseNot gradedqualityBmaintenanceProvides a feed of x402/L402 services newly listed on 402index.io within a caller-specified recency window, with filtering by protocol, category, and payment network.