Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
Argentine electronic invoicing (facturación electrónica) for ARCA/AFIP. Emit invoices, manage credentials, check delegations, and look up taxpayers. 10 tools. Install via npx keycae-mcp.
Fundraising infrastructure for AI agents on Solana — campaigns, x402 donations, and on-chain reputation. MCP tools for registering agents, creating campaigns, and donating via the x402 pay-to-call flow, backed by Anchor programs (agentregistry, escrow, reputation). npx -y @agentfund/mcp