Hive MCP Server

An MCP server that enables AI assistants to interact with the Hive blockchain through the Model Context Protocol.

Overview

This server provides a bridge between AI assistants (like Claude) and the Hive blockchain, allowing AI models to:

• Fetch account information and history
• Retrieve blog posts and discussions
• Get posts by tag or user
• Vote on content and create posts (when properly authenticated)
• Send HIVE or HBD tokens to other accounts
• Sign and verify messages with Hive keys
• Send and receive encrypted messages

Features

Tools

Reading Data

• get_account_info - Get detailed information about a Hive blockchain account
• get_post_content - Retrieve a specific post by author and permlink
• get_posts_by_tag - Retrieve posts by tag and category (trending, hot, etc.)
• get_posts_by_user - Fetch posts from a specific user or their feed
• get_account_history - Get transaction history for an account with optional operation filtering
• get_chain_properties - Fetch current Hive blockchain properties and statistics
• get_vesting_delegations - Get a list of vesting delegations made by a specific account

Blockchain Interactions (Require Authentication)

• vote_on_post - Vote on Hive content (requires posting key)
• create_post - Create new blog posts on the Hive blockchain (requires posting key)
• create_comment - Comment on existing posts or reply to comments (requires posting key)
• send_token - Send HIVE or HBD cryptocurrency to other accounts (requires active key)

Cryptography

• sign_message - Sign a message using a Hive private key
• verify_signature - Verify a message signature against a Hive public key

Encrypted Messaging

• encrypt_message - Encrypt a message for a specific Hive account
• decrypt_message - Decrypt an encrypted message from a specific Hive account
• send_encrypted_message - Send an encrypted message using a token transfer
• get_encrypted_messages - Retrieve and optionally decrypt messages from account history

Debugging with MCP Inspector

The MCP Inspector provides an interactive interface for testing and debugging the server:

Authentication Configuration

To enable authenticated operations (voting, posting, sending tokens), you'll need to set environment variables:

Security Note: Never share your private keys or commit them to version control. Use environment variables or a secure configuration approach.

Integration with AI Assistants

Claude Desktop

To use this server with Claude Desktop:

1. Ensure you have Claude Desktop installed
2. Open or create the Claude configuration file:
   • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
   • Windows: %APPDATA%\Claude\claude_desktop_config.json
3. Add this server to your configuration:

Windsurf and Cursor

The same JSON configuration works for Windsurf (in windsurf_config.json) and Cursor (in cursor_config.json).

Examples

Once connected to an MCP client, you can ask questions like:

• "What are the trending posts in the #photography tag on Hive?"
• "Show me the recent posts from username 'alice'"
• "What's the account balance and details for 'bob'?"
• "Get the transaction history for 'charlie'"
• "Can you upvote the post by 'dave' with permlink 'my-awesome-post'?"
• "Create a new post on Hive about AI technology"
• "Send 1 HIVE to user 'frank' with the memo 'Thanks for your help!'"
• "Sign this message with my Hive posting key: 'Verifying my identity'"
• "What are the current Hive blockchain properties?"
• "Show me the vesting delegations made by user 'grace'"
• "Encrypt this message for user 'alice': 'This is a secret message'"
• "Decrypt this message from 'bob': '#4f3a5b...'"
• "Send an encrypted message to 'charlie' saying 'Let's meet tomorrow'"
• "Show me my encrypted messages and decrypt them"
• "Get the last 10 encrypted messages I've exchanged with 'dave'"

Tool Documentation

get_account_info

Fetches detailed information about a Hive blockchain account including balance, authority, voting power, and other metrics.

• Parameters:
  • username: Hive username to fetch information for

get_post_content

Retrieves a specific Hive blog post identified by author and permlink.

• Parameters:
  • author: Author of the post
  • permlink: Permlink of the post

get_posts_by_tag

Retrieves Hive posts filtered by a specific tag and sorted by a category.

• Parameters:
  • category: Sorting category (trending, hot, created, etc.)
  • tag: The tag to filter posts by
  • limit: Number of posts to return (1-20)

get_posts_by_user

Retrieves posts authored by or in the feed of a specific Hive user.

• Parameters:
  • category: Type of user posts to fetch (blog or feed)
  • username: Hive username to fetch posts for
  • limit: Number of posts to return (1-20)

get_account_history

Retrieves transaction history for a Hive account with optional operation type filtering.

• Parameters:
  • username: Hive username
  • limit: Number of operations to return
  • operation_filter: Optional list of operation types to filter for

get_chain_properties

Fetch current Hive blockchain properties and statistics.

• Parameters: None

get_vesting_delegations

Get a list of vesting delegations made by a specific Hive account.

• Parameters:
  • username: Hive account to get delegations for
  • limit: Maximum number of delegations to retrieve
  • from: Optional starting account for pagination

vote_on_post

Vote on a Hive post (upvote or downvote) using the configured Hive account.

• Parameters:
  • author: Author of the post to vote on
  • permlink: Permlink of the post to vote on
  • weight: Vote weight from -10000 (100% downvote) to 10000 (100% upvote)

create_post

Create a new blog post on the Hive blockchain using the configured account.

• Parameters:
  • title: Title of the blog post
  • body: Content of the blog post (Markdown supported)
  • tags: Tags for the post
  • Various optional parameters for rewards, beneficiaries, etc.

create_comment

Create a comment on an existing Hive post or reply to another comment.

• Parameters:
  • parent_author: Username of the post author or comment you're replying to
  • parent_permlink: Permlink of the post or comment you're replying to
  • body: Content of the comment (Markdown supported)
  • Various optional parameters for rewards, beneficiaries, etc.

send_token

Send HIVE or HBD tokens to another Hive account using the configured account.

• Parameters:
  • to: Recipient Hive username
  • amount: Amount of tokens to send
  • currency: Currency to send (HIVE or HBD)
  • memo: Optional memo to include with the transaction

sign_message

Sign a message using a Hive private key from environment variables.

• Parameters:
  • message: Message to sign
  • key_type: Type of key to use (posting, active, or memo)

verify_signature

Verify a digital signature against a Hive public key.

• Parameters:
  • message_hash: The SHA-256 hash of the message in hex format
  • signature: Signature string to verify
  • public_key: Public key to verify against

encrypt_message

Encrypt a message for a specific Hive account using memo encryption.

• Parameters:
  • message: Message to encrypt
  • recipient: Hive username of the recipient

decrypt_message

Decrypt an encrypted message received from a specific Hive account.

• Parameters:
  • encrypted_message: Encrypted message (starts with #)
  • sender: Hive username of the sender

send_encrypted_message

Send an encrypted message to a Hive account using a small token transfer.

• Parameters:
  • message: Message to encrypt and send
  • recipient: Hive username of the recipient
  • amount: Amount of HIVE to send (minimum 0.001, default: 0.001)

get_encrypted_messages

Retrieve encrypted messages from account history with optional decryption.

• Parameters:
  • username: Hive username to fetch encrypted messages for
  • limit: Maximum number of messages to retrieve (default: 20)
  • decrypt: Whether to attempt decryption of messages (default: false)

Development

Project Structure

• src/index.ts - Main server implementation
• src/tools/ - Implementation of all tools
• src/schemas/ - Zod schemas for tool parameters

Dependencies

• @hiveio/dhive - Hive blockchain client
• @modelcontextprotocol/sdk - MCP SDK
• zod - Schema validation

License

ISC

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

See the CONTRIBUTING.md file for more detailed contribution guidelines.