"JSON Web Tokens" matching MCP connectors:

Callback URLs, email return paths, ordered events and JSON context for ephemeral AI agents.

MCP tools for agents: web research, content extraction, email, DNS, and blockchain intelligence.

Ten x402-paid tools for JSON, YAML, cron, diff, text, DNS, WHOIS, GitHub, crypto, and email.

Query Inbin's parsed email events (newsletters, invoices, alerts) as typed JSON tools.

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ai.powerline

Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them

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Receive inbound email as clean JSON — manage domains, routes, and webhooks. MailKite.