MCP servers are becoming the standard for agent payment tools. but there's a gap — memory doesn't move with the agent.
i built mnemopay so agents carry reputation and context across servers. portability isn't a nice-to-have — it's required for autonomous commerce.
the lock-in problem
if an agent builds payment history on one MCP server, switching servers resets trust to zero. the agent proved reliability in 200 transactions, but the new server doesn't know that.
that's a cold-start tax. it kills agent-to-agent workflows that span multiple environments.
how mnemopay solves it
the agent's reputation lives in a portable format — MerkleAudit chains that any MCP server can verify. payment history, memory consistency, dispute records — all exportable.
when the agent switches context, the score follows. no re-establishing trust. no manual verification.
i've integrated this with 14 MCP servers so far. v0.5.0 shipped last week with 672 passing tests. agents move, reputation persists.
what this unlocks
autonomous workflows that don't break when the agent changes tools. agent-to-agent payments without centralized gatekeepers. compliance with EU AI Act Article 12 — audit bundles export automatically.
if you're building MCP payment tools, the SDK is live. agents own their memory now — and it moves with them.
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