How do I install Sequesign?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is Sequesign official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 50 (Fair). The formula is published on the methodology page.

MCPpedia

Sequesign MCP Server — Install for Claude, Cursor & VS Code | MCPpedia

Sequesign MCP Server

Name: Sequesign MCP Server
Author: sequesign

Cryptographically verifiable receipts of an agent's delegated work, verified offline.

Tools Versions Alternatives

Registrysequesign

50Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "sequesign-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@sequesign/mcp@0.4.1"
      ],
      "env": {
        "SEQUESIGN_MODE": "",
        "SEQUESIGN_API_KEY": "YOUR_SEQUESIGN_API_KEY",
        "SEQUESIGN_AGENT_PRIVATE_KEY": "YOUR_SEQUESIGN_AGENT_PRIVATE_KEY",
        "SEQUESIGN_PACKAGE_DIR": "",
        "SEQUESIGN_TEMPLATE_REGISTRY_URL": "",
        "SEQUESIGN_TEMPLATE_REGISTRY_TOKEN": "YOUR_SEQUESIGN_TEMPLATE_REGISTRY_TOKEN"
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
SEQUESIGN_MODE	No	Transport: 'direct' (default; sign locally, an independent witness co-signs) or 'managed' (route through the Sequesign broker for a registered identity).
SEQUESIGN_API_KEY	No	Sequesign write-class API key (from the dashboard). Required for managed mode; in direct mode it authenticates the hosted witness. Secret.
SEQUESIGN_AGENT_PRIVATE_KEY	No	Ed25519 PKCS#8 private-key PEM for the agent. In managed mode, the key registered to your API key. In direct mode, omit to mint an ephemeral key per session. Secret.
SEQUESIGN_PACKAGE_DIR	No	Directory where sealed receipt packages are written. Defaults to a temporary directory.
SEQUESIGN_TEMPLATE_REGISTRY_URL	No	Base URL of a read-only dynamic template registry (e.g. https://dashboard-api.sequesign.com/v1/registry). When set, direct-mode sessions and the discovery tools resolve templates published there in addition to the bundled ones, falling back to bundled offline. Omit to use only the bundled templates.
SEQUESIGN_TEMPLATE_REGISTRY_TOKEN	No	Read-only bearer token for an account-scoped template registry (discovery only; never used in verification). Omit for a public registry. Secret.

Sequesign MCP Server

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