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io.github.mountainmystic/hedera-hcs-mcp-server

Official registry AI and agents

AI-powered Hedera HCS topic intelligence for agents. Pay per call in HBAR.

Source code

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package hedera-hcs-mcp-server
Claude Code 
claude mcp add hedera-hcs-mcp-server -e 'HEDERA_ACCOUNT_ID=<HEDERA_ACCOUNT_ID>' -e 'HEDERA_PRIVATE_KEY=<your hedera_private_key>' -e 'HEDERA_NETWORK=<HEDERA_NETWORK>' -e 'OPENAI_API_KEY=<your openai_api_key>' -- npx -y hedera-hcs-mcp-server@1.0.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "hedera-hcs-mcp-server": {
            "command": "npx",
            "args": [
                "-y",
                "hedera-hcs-mcp-server@1.0.1"
            ],
            "env": {
                "HEDERA_ACCOUNT_ID": "<HEDERA_ACCOUNT_ID>",
                "HEDERA_PRIVATE_KEY": "<your hedera_private_key>",
                "HEDERA_NETWORK": "<HEDERA_NETWORK>",
                "OPENAI_API_KEY": "<your openai_api_key>"
            }
        }
    }
}

Environment variables

  • HEDERA_ACCOUNT_ID required Hedera account ID in format 0.0.XXXXXXX
  • HEDERA_PRIVATE_KEY required secret Hedera account private key (ECDSA hex format)
  • HEDERA_NETWORK required Hedera network: testnet or mainnet
  • OPENAI_API_KEY required secret OpenAI API key for GPT-4o Mini powered analysis

Frequently asked questions

What is io.github.mountainmystic/hedera-hcs-mcp-server?

AI-powered Hedera HCS topic intelligence for agents. Pay per call in HBAR.

How do I install io.github.mountainmystic/hedera-hcs-mcp-server?

It runs on your machine. In Claude Code: claude mcp add hedera-hcs-mcp-server -e 'HEDERA_ACCOUNT_ID=<HEDERA_ACCOUNT_ID>' -e 'HEDERA_PRIVATE_KEY=<your hedera_private_key>' -e 'HEDERA_NETWORK=<HEDERA_NETWORK>' -e 'OPENAI_API_KEY=<your openai_api_key>' -- npx -y hedera-hcs-mcp-server@1.0.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.mountainmystic/hedera-hcs-mcp-server need an API key?

Yes. It expects HEDERA_ACCOUNT_ID, HEDERA_PRIVATE_KEY, HEDERA_NETWORK, OPENAI_API_KEY, which you set in its configuration.

Is io.github.mountainmystic/hedera-hcs-mcp-server open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.mountainmystic/hedera-hcs-mcp-server?

It is published by mountainmystic. AI.tn lists it but does not maintain or endorse it.

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