"roadmap.sh" matching MCP connectors:

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.

Remno MCP Server connects AI agents to the Remno commerce exchange. Agents discover services, negotiate prices, hold funds conditionally, verify output quality, and settle payments — all programmatically. 13 tools with structured JSON responses and LLM-friendly error handling.

13 pay-per-use Chinese tools (diagnosis, PLC, copywriting, divination), 0.05 CNY/call via A2M 402.

AI app builder: build, deploy and grow websites and full-stack apps on Greta from your AI agent.

Send WhatsApp messages from your own numbers, read and answer chats, and send sign-in codes.

Gmail for agents: create inboxes, read and reply to mail, send email, manage domains. OAuth sign-in.

Send tasks and notifications to people's phones. Answers build a queryable knowledge base.