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helius

helius is an MCP server for Cursor from helius-labs/core-ai. Its token cost is not measured, scanned A, original, MIT.

A local MCP server that gives AI assistants access to data from Solana, a blockchain network. It is provided through the Helius package.

In plain words
What is it for?
Use it when an AI assistant needs access to Solana blockchain information through the Helius MCP server.
Why use it?
It provides a defined connection for retrieving Solana blockchain data instead of requiring the assistant to work without that data source.

MCP server for Cursor

Written for Cursor: shipped in a Cursor plugin. Also seen: listed in a Claude config.

Part of the helius plugin — 4 skills, 1 agent, 1 MCP server shipped together

not rated 29repo changed 2d ago A scan Socket: warn tokens not measured original MIT

Good fit Use it when an AI assistant needs access to Solana blockchain information through the Helius MCP server.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/helius-labs/core-ai/helius
View source ↗ helius-labs/core-ai
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/helius-labs/core-ai

Made for: Cursor.

Or install helius, the plugin that ships this one along with the rest of its 4 skills, 1 agent, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for helius

README.md
[![agentmods](https://agentmods.dev/badge/mcp/helius-labs/core-ai/helius/github.svg)](https://agentmods.dev/mcp/helius-labs/core-ai/helius)
Your own site
<a href="https://agentmods.dev/mcp/helius-labs/core-ai/helius"><img src="https://agentmods.dev/badge/mcp/helius-labs/core-ai/helius/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for helius

Your own site · 80×15
<a href="https://agentmods.dev/mcp/helius-labs/core-ai/helius"><img src="https://agentmods.dev/badge/mcp/helius-labs/core-ai/helius.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits How audits are shown
Origin original No closer match found in the catalogue.
Security

Grade A, and why

helius scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

helius-cursor/.mcp.json · 8 lines

What it actually says

{
  "helius": {
    "command": "npx",
    "args": [
      "[email protected]"
    ]
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago Changed 1be9ef570e18
  2. 1mo ago Changed fe70a6ec97c0
  3. 1mo ago First seen · 8 lines scan A b560a04daa68

Subscribe to this mod's changes

helius is an MCP server published in the GitHub repository helius-labs/core-ai (29 stars, last pushed today), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Web3 and blockchainai-toolsclaude-skillscursormcpsolana
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