Etch MCP server

Etch is a service that keeps a signed record of decisions made by AI agents. This MCP server is the connector that lets your AI write to that record and check it. It is handy for teams who need a clear trail of what an AI did and why, for example for audits or internal reviews.

What this MCP server does

You ask your AI to record a decision, or to check the record. Your AI sends that request to the Etch MCP server. The server talks to the hosted Etch service, which signs the event and links it into a per-project chain. You get back a confirmation, an id, or a summary of what is in the chain. Later, anyone with the right public keys can verify those entries offline without contacting Etch.

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What you can do with it

• Record a decision your AI made, with the details you give it
• Look up past signed events for a project
• Check that a chain of events is intact and has not been changed
• Get a summary of what has been recorded so far
• Attach context or notes to an event before it is signed
• Verify entries offline using pinned public keys

Try asking your AI

• “Record this decision in Etch: we approved the refund for order 4412 because the customer was double charged.”
• “Show me the last ten signed events in my Etch project.”
• “Check that the Etch chain for this project is still valid.”
• “Summarise what has been recorded in Etch this week.”

What it gives back to you

You get back short answers in the chat: a confirmation when an event is signed, an id you can refer to later, or a list of past events with their times and details. When you ask for a check, you get a simple yes or no about whether the chain is intact. Everything is shown as text in the conversation, so you can copy it into a report if you need to.

Before you start

Who it's for

Teams and individuals who need a clear, verifiable record of what an AI decided, such as compliance, audit, and risk people, and developers building AI agents that must be accountable.