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Signet MCP Tools MCP server

by Prismer-AI·io.github.Prismer-AI/signet-mcp-tools·v0.4.1·38 stars
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MCP server exposing Signet cryptographic signing, verification, and content hash tools over stdio.

A94/100grade A
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Safety scan
A94/100

full report

Adoption
Growing

38 stars57 downloads/wk

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Signet MCP Tools tools (4)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • signet_content_hash

    Compute SHA-256 hash of canonical JSON (RFC 8785 JCS). Accepts any JSON value.

  • signet_generate_keypair

    Generate a new Ed25519 keypair. Returns only the public key. Use Signet CLI to manage secret keys securely.

  • signet_sign

    Sign an action (tool call) with an Ed25519 key, producing a cryptographic receipt. Uses SIGNET_SECRET_KEY env var if set, otherwise requires secret_key argument.

  • signet_verify

    Verify a Signet receipt signature. Returns {valid: true/false}. Accepts both bare base64 and ed25519:-prefixed public keys.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan5 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 4 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 94/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Signet MCP Tools compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
94/100
higher than 96% of 48,255 servers
Tools
4
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
38
more than 93% of 28,688 servers
Downloads a week
57
more than 47% of 12,191 servers with a package

What its tools let an agent do: 4 read

Install Signet MCP Tools in Claude Code, Cursor or VS Code

Runs npx -y @signet-auth/mcp-tools on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add signet-mcp-tools -- npx -y @signet-auth/mcp-tools
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What the publisher says

From the Signet MCP Tools repository's README, as published. We do not edit it. Read it on GitHub

Signet

Don't just log agent actions. Prove them. Cryptographic trust and authorization evidence for every AI agent action — identity, delegation, policy, receipts: signed, hash-chained, offline-verifiable. Independent of any provider.

TypeScript packages: @signet-auth/core · @signet-auth/mcp · @signet-auth/mcp-server · @signet-auth/mcp-tools · @signet-auth/node · @signet-auth/vercel-ai

▶ Try the live demo — sign a tool call in your browser, change a field, and watch verification fail. (mirror: GitHub Pages)

▶ Walkthrough: signing, audit log, and verification · ▶ Demo: execution boundary & MCP integration

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Signet MCP Tools: common questions

Is Signet MCP Tools MCP server safe?
Yes, by our scan: it is graded A (94/100). Read the Signet MCP Tools safety report
How do I install Signet MCP Tools?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Signet MCP Tools need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Signet MCP Tools maintained?
The last commit was 41 days ago (2026-09-24). The latest release is v0.4.1.
How does Signet MCP Tools compare with other MCP servers?
safety score 94/100 (higher than 96% of 48,255 servers); tools 4 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.