Signet MCP Tools
Let your coding agent sign payloads, verify signatures, and hash content through Signet without leaving the MCP workflow.
Overview
Signet MCP Tools is a MCP server for the Ship phase that exposes Signet cryptographic signing, verification, and content-hash operations to AI clients over stdio.
What is this MCP server?
- Stdio MCP server wrapping Signet signing, verification, and content-hash tools
- npm package @signet-auth/mcp-tools at version 0.4.1
- Designed for agent-driven attestations and integrity checks on arbitrary content
- Runs locally over stdio—no separate HTTP service required for Claude/Cursor wiring
- Pairs with Signet auth flows for cryptographic identity on generated or shipped assets
- Package version 0.4.1 on npm as @signet-auth/mcp-tools
- Transport: stdio only per server manifest
- Repository: github.com/Prismer-AI/signet
Community signal: 37 GitHub stars.
What problem does it solve?
Agents can describe signatures and hashes in prose but cannot reliably perform real cryptography unless you wire a dedicated tool they can invoke.
Who is it for?
Indie builders shipping APIs or SaaS who want Signet attestations and integrity checks inside Claude Code, Cursor, or Codex sessions.
Skip if: Teams that only need generic password vaulting or full PKI lifecycle management without Signet-specific signing flows.
What do I get? / Deliverables
After registering the server, your agent can call Signet-backed sign, verify, and hash tools deterministically during release and security workflows.
- Callable MCP tools for Signet signing, verification, and content hashing
- Agent-accessible integrity checks on strings or files you pass into tool calls
- Stdio-based local server entry you can version-pin at 0.4.1
Recommended MCP Servers
Journey fit
How it compares
MCP cryptographic integration for Signet, not a standalone agent skill or general secrets scanner.
Common Questions / FAQ
Who is Signet MCP Tools for?
Solo and indie developers using AI coding agents who already use or plan to use Signet and need signing, verification, and hashing as callable MCP tools.
When should I use Signet MCP Tools?
Use it when you are in ship or security prep and want your agent to sign content, verify signatures, or compute content hashes through Signet instead of improvised shell one-liners.
How do I add Signet MCP Tools to my agent?
Install @signet-auth/mcp-tools from npm, add a stdio MCP server entry pointing at the package binary in your Claude Code, Cursor, or compatible client config, and ensure Signet credentials or environment your setup requires are available locally.