Overview

• The "safe credit card" pattern — why agents should get scoped, capped keys, not your root key
• One protocol, many hosts — expose provision / list / rotate_key / teardown as MCP tools so Cursor, Claude Code, and Hermes all provision the same way
• Provider registry — add a provisionable service (Supermemory, a vector DB, an email sender) as one entry, not a new tool
• Provision → use in one loop — mint a Supermemory key, write it to .env, then store and recall memories in the next turn
• Spend guardrails — hard caps, mock invoices, key rotation, and teardown that stops billing
• Capability exchange — host/client/server handshake, reused from the MCP Visual Guide
• Runnable Python MCP server + an end-to-end agent demo that runs fully offline

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• MCP Visual Guide — host/client/server, capability exchange, building servers
• Hermes Agent Masterclass — agents that consume MCP tools
• Harness Engineering — the environment and guardrails around the agent
• Loop Engineering — the act/observe/repeat loop that drives tool calls

Read the full tutorial →