"Understanding File Systems" matching MCP connectors:

MCP plugin factory and x402 Agent Kit API for external agents, at 0.01 USDC per call.

Reads and validates any European e-invoice a business receives — XRechnung, UBL, CII, ZUGFeRD/Factur-X PDF, Peppol BIS 3, FatturaPA, KSeF FA(3) — into canonical EN 16931 JSON with plain-language fix hints in EN/DE/PL/IT/FR, plus PDF, CSV and DATEV export. Nothing is stored; works without a key on a small daily quota.

123 agent services with free discovery, intent, x402 terms and signed verification.

Agent-native payment safety, x402 quote comparison, route selection, reconciliation, duplicate-charge prevention and signed receipts.

Pay-per-call agent infrastructure: file storage & handoff, compute tools, messaging, e-sign, KYC.

Sick of stitched-together services? Anythink is the all-in-one backend, configured with AI.

Agent file transfer. No API key to start; price downloads in USDC on Base.

Web search, page reading, HTML to PDF, file upload and flight search for AI agents, paid in USDC.

Quote and order waterjet-cut metal parts from a CAD file: instant price and checkout link.

Polish invoicing and KSeF e-invoicing: issue, send, settle and file a company's documents