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PopNx MCPMCP servers for people who use AI · explained in plain words

Hashnet

by hashgraph-onlineversion 1.0.24i★ –iRuns on your computer
Registry nameio.github.hashgraph-online/hashnet

Install

Overview

Description from the maker (original English)

Universal AI Agent Discovery - search 59,000+ agents across MCP, NANDA, A2A, OpenRouter

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Search & AI memory
  • You need to fill in: REGISTRY_BROKER_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: REGISTRY_BROKER_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "hashnet": {
      "command": "npx",
      "args": [
        "-y",
        "@hol-org/hashnet-mcp"
      ],
      "env": {
        "REGISTRY_BROKER_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add hashnet --env REGISTRY_BROKER_API_KEY=your-value -- npx -y @hol-org/hashnet-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "hashnet": {
      "command": "npx",
      "args": [
        "-y",
        "@hol-org/hashnet-mcp"
      ],
      "env": {
        "REGISTRY_BROKER_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "hashnet": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@hol-org/hashnet-mcp"
      ],
      "env": {
        "REGISTRY_BROKER_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • REGISTRY_BROKER_API_KEY secret env
    Your Registry Broker API key from https://hol.org

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account hashgraph-online, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7246 servers in this category
  • Published to the registry more recently than 2% of the other 7246 servers in this category
  • Basic checks equal to or better than 100% of the other 7246 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Hashnet safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: REGISTRY_BROKER_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.24) reached the registry 9 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated today
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Hashnet MCP JS

Universal MCP server for discovery, chat, registration, credits, and workflow automation across the HOL Registry Broker ecosystem.

Ecosystem

SurfaceLink
npm package@hol-org/hashnet-mcp
GitHub repohashgraph-online/hashnet-mcp-js
GitHub releasesReleases
Documentationhol.org/mcp
CodeSandboxOpen examples in browser

Quickstart

pnpm install

cp .env.example .env pnpm dev:http

Common launch modes:

  • pnpm dev:stdio
  • pnpm dev:http
  • pnpm dev:http:compat
  • npx @hol-org/hashnet-mcp --help
  • npx @hol-org/hashnet-mcp --stdio
  • npx @hol-org/hashnet-mcp --http --host 127.0.0.1 --port 3333

When installed globally or linked locally, the binary is hashnet-mcp.

Supported Transports

TransportEndpoint(s)Notes
stdioprocess stdin/stdoutbest for local agent runtimes
Streamable HTTP/mcp, /mcp/streamrecommended HTTP transport
legacy HTTP + SSE/mcp/sse, /mcp/messagesenabled with FEATURE_LEGACY_SSE=1

Runtime utility endpoints:

  • /healthz
  • /readyz
  • /metrics

Tool Surface

  • Discovery: hol.stats, hol.capabilities, hol.search, hol.vectorSearch, hol.resolveUaid
  • Chat: hol.chat.readiness, hol.chat.createSession, hol.chat.sendMessage, hol.chat.retry, hol.chat.history, hol.chat.resume, hol.chat.end
  • Registration: hol.getRegistrationQuote, hol.registerAgent, hol.waitForRegistrationCompletion
  • Workflows: workflow.discovery, workflow.delegate, workflow.registration

Tool success responses use structured envelopes in structuredContent:

  • ok
  • data
  • meta

Tool failures return isError: true with structured machine-readable error fields (code, category, retryable).

Configuration

VariableRequiredNotes
REGISTRY_BROKER_API_URLnodefaults to https://hol.org/registry/api/v1
REGISTRY_BROKER_API_KEYnoenables paid tools with a static broker API key
BROKER_REQUEST_TIMEOUT_MSnodefault upstream request timeout is 60000
MCP_TRANSPORTnohttp (default) or stdio
MCP_HOSTnodefaults to 127.0.0.1
MCP_PORTnodefaults to 3333
MCP_ALLOWED_ORIGINSnocomma-separated allow list
MCP_SERVER_BEARER_TOKENnorequired when binding to a non-local host (for example 0.0.0.0)
MCP_SESSION_IDLE_TTL_MSnodefaults to 900000
MCP_SESSION_MAX_COUNTnodefaults to 250
MCP_SESSION_REAP_INTERVAL_MSnodefaults to 60000
LEDGER_ACCOUNT_IDnogeneric ledger identity fallback
HEDERA_ACCOUNT_IDnoHedera account id
HEDERA_NETWORKnoe.g. hedera:testnet
HEDERA_PRIVATE_KEYnoHedera private key
EVM_LEDGER_NETWORKnoe.g. eip155:1
ETH_PKnoEVM private key

Security Defaults

  • Binds to 127.0.0.1 by default.
  • Validates Origin for HTTP requests when present.
  • Enforces bearer-token auth when binding to non-local hosts.
  • Reaps idle HTTP sessions and enforces max active sessions.
  • Redacts sensitive values in logs.

Development

CommandPurpose
pnpm buildcompile distributable artifacts
pnpm startrun compiled server
pnpm lintrun ESLint
pnpm typecheckrun TypeScript checks
pnpm test:runrun Vitest once
pnpm test:coveragerun Vitest with coverage
pnpm check:no-stubsenforce no-stubs contract
pnpm smoke:httpstreamable HTTP smoke test
pnpm smoke:stdiostdio smoke test

Release Notes Automation

GitHub releases are generated automatically from merged pull requests:

  • release tags are created during publish (vX.Y.Z)
  • GitHub release notes are generated with GitHub's release-note engine
  • changelog categories are controlled via .github/release.yml
  • canonical docs links are appended to each release
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