countersign-network/packages

Neutral, cross-vendor control plane for AI agents that spend money — one policy, one sub-second freeze, one tamper-evident audit ledger across every agent-wallet backend. Open-core: SDK + MCP + x402/AP2.

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countersign

countersign-network/packages

MCP server Claude CodeCodexCursor +2

Kill switch + spend guard for AI agents that spend money, across every wallet vendor at once. Runs locally from the @countersign/mcp npm package. Needs 2 environment variables to run.

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