About Sequesign
Sequesign is an MCP server published by Sequesign in the Blockchain category: cryptographically verifiable receipts of an agent's delegated work, verified offline.
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Install
Claude Code
claude mcp add sequesign -- npx -y @sequesign/mcpnpx
npx -y @sequesign/mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (8)
sequesign_approve_receiptAttach an independently-witnessed **approval** to an *already-sealed* receipt (a deferred satellite). For a reviewer — human or another agent — signing off after the fact. The approver must be distinct from the recording agent.
Parameters not published.
sequesign_countersign_receiptAttach an independently-witnessed **counterparty confirmation** to an *already-sealed* receipt (a deferred satellite), bound to a specific action.
Parameters not published.
sequesign_finalizeSeal + witness the receipt and run the SDK's own verification. Closes the session.
Parameters not published.
sequesign_record_actionAppend a signed action to the chain. `evidence` is hashed and signed. Returns the `actionId`.
Parameters not published.
sequesign_record_approvalAttach a locally signed approval for a recorded action (e.g. a human or agent reviewer signing off).
Parameters not published.
sequesign_record_counterparty_attestationAttach a counterparty's signed confirmation of a recorded action (e.g. a vendor confirming an amount). The SDK derives the content binding from the attested action.
Parameters not published.
sequesign_start_sessionOpen a recording session (one signed action chain). Returns a `sessionId` (the receipt id) used by every other tool. Pass a `policyContext` object to bind the receipt to a policy (reaches `L3_POLICY_BOUND`). Optional `mode` (`direct`/`managed`) overrides the server default per session.
Parameters not published.
sequesign_verifyVerify a sealed receipt offline. Three modes: integrity self-check of the local package (default); third-party `external` check when you pass the witness's published keys; or pass `receiptUrl` to verify the broker-**stored** receipt (the authoritative copy carrying the registered identity), auto-fetching the published witness + registration anchors.
Parameters not published.
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