The MCP SNS Server is a TypeScript-based server for interacting with Service Nervous System (SNS) DAOs on the Internet Computer. It provides the following functionalities:
List all proposals: Retrieve all proposals for a specified DAO by name
List votable neurons: Get neurons that can vote on proposals for a specific user using DAO name and principal ID
Get system parameters: Access all configuration parameters for a specified DAO
Get wallet information: Retrieve the principal ID of the current wallet
Vote on proposals: Cast votes (yes, no, or unspecified) on DAO proposals using DAO name, principal ID, neuron ID, proposal ID, and vote preference
Provides tools for interacting with Service Nervous System (SNS) DAOs on the Internet Computer, enabling users to list proposals, view votable neurons, get system parameters, access wallet information, and vote on proposals.
References a demo video hosted on YouTube that demonstrates the MCP server's functionality.
mcp-sns-server MCP Server
A Model Context Protocol server for interacting with DAOs on the Internet Computer
This is a TypeScript-based MCP server that implements an interface to Service Nervous System (SNS) DAOs. It demonstrates core MCP concepts by providing tools to interact with decentralized autonomous organizations.
Setup
add your seed phrase to env file
Related MCP server: ONOS MCP Server
Features
Tools
list_proposals- List all proposals for a specific DAOTakes DAO name as parameter
Returns list of proposals from the specified DAO
list_votable_neurons- List all votable neurons for a user in a DAOTakes DAO name and principal ID as parameters
Returns neurons that can vote on proposals
get_system_parameters- List all configuration parameters for a DAOTakes DAO name as parameter
Returns system parameters for the specified DAO
wallet- Get the user's wallet informationReturns the principal ID of the current wallet
vote_proposal- Vote on a proposalTakes DAO name, principal ID, neuron ID, proposal ID, and vote preference
Allows voting yes, no, or unspecified on proposals
Registers vote with the DAO governance system
Development
Install dependencies:
Build the server:
For development with auto-rebuild:
Installation
To use with Claude Desktop, add the server config:
On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
On Windows: %APPDATA%/Claude/claude_desktop_config.json
Debugging
Since MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector, which is available as a package script:
The Inspector will provide a URL to access debugging tools in your browser.