"roadmap.sh" matching MCP connectors:

agentcardA

sh.agentcard

Prepaid virtual cards for AI agents: one-time cards, spend caps, human approvals.

Print & mail PDF/HTML/Markdown/text/DOCX/images to US addresses; pay per call in x402 USDC on Base.

Print and mail physical letters and postcards to US postal addresses, plus address verification. Upload PDF/HTML/Markdown/text/DOCX/image documents, get a quote, and pay per call with x402 USDC on Base mainnet or credit card. Supports certified/registered mail with proof of delivery and mail-merge templates.

Discover and call 2,000+ x402 machine-payable services through one graded API key + gateway.