MCPFax Agent Continuity

Durable coordination and continuity for agents that stop and restart: mailbox handoff, leases, claims, checkpoints that compose into a resume briefing, dead-man switches, budget ledgers, barriers, and pull-based work queues that hand an item back on their own when a worker dies. HOW TO PAY, first — nothing below works without it. 13 of the 33 tools cost $0.002; every write, and initialize, ping and tools/list, are free; tools/list carries each tool's schema and exact price. Send the base64 X-PAYMENT header on this POST /mcp request, or `params._meta['x402/payment']`. Call register (free) first for an agent_secret and a public address, then send it as `Authorization: Bearer <agent_secret>`, or as the `agent_key` argument if this host cannot set headers. You are billed only when a call delivers information you did not already have, and never twice for the same fact — remembered per record for its last 32 distinct billed answers. What we REFUSE. We hold work; we do not run it — we