Proofmark Hash

io.github.SamuelDharshiPublished by GitHub account SamuelDharshiv1.0.0Updated Nov 7, 2026

Hash text with SHA-256, SHA-512 or SHA3-256, and verify a digest.

VerifiedSTDIODesktop onlyDeveloper ToolsSecurity & Monitoring

Overview

AI-generated overview

A local MCP server that lets an assistant hash UTF-8 text with SHA-256, SHA-512 or SHA3-256 and verify a digest in constant time.

What you can do
  • Hash UTF-8 text with SHA-256, SHA-512 or SHA3-256
  • Check text against an expected digest using constant-time comparison
When to use it
Useful when you need a quick checksum or integrity check of a short piece of text, or want to confirm that text matches a known digest without leaving the chat.
Requirements
Runs as a local stdio process, typically launched with npx from the npm package proofmark-hash, so Node.js and network access for the first package download are needed. No accounts, API keys or environment variables are declared.
Before you install
Pure computation: it reads no files, opens no network connections and stores nothing. Hashing is not encryption, so do not treat it as protecting secrets; the README also points to an external trust-status page, which is not needed to use the server.

Installation

In SourceWeft

  1. Open Proofmark Hash in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

proofmark-hash

A small MCP server that hashes text with SHA-256, SHA-512 or SHA3-256 and verifies digests in constant time.

mcp-name: io.github.SamuelDharshi/proofmark-hash

Tools:

  • hash_text: hash UTF-8 text.
  • verify_hash: check text against an expected digest.

Pure computation: it reads no files, opens no network connections and stores nothing.

json
{  "mcpServers": {    "hash": { "command": "npx", "args": ["-y", "proofmark-hash"] }  }}

Part of Proofmark, the MCP trust gate. Check this server's live trust status at https://proofmark-web.vercel.app/check?server=io.github.SamuelDharshi/proofmark-hash

Source: publish/hash-server/README.md at commit 6a1f161

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.0LatestNov 7, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.