Pulsar

MCP server for Pyth Network to help it integrate with AI agents

Pulsar

Created At

ETHOnline 2025

Project Description

Pyth Network MCP is a Python-based server that connects AI systems and developer tools to real-time financial data from the Pyth Network through the Hermes API. Built with the official Model Context Protocol (MCP) SDK, it provides access to decentralized price feeds across 100+ blockchains. The server is stateless and handles requests via stdio for low-latency responses. It includes several tools and prompts for fetching and analyzing price data in a human-readable format. Designed for environments like Claude Desktop or Cursor IDE, it enables AI agents to make real-time market decisions using verified on-chain data.

How it's Made

Pyth Network MCP is built with Python 3.10+, the official MCP SDK, and httpx for async API calls to Pyth’s Hermes endpoint. It provides real-time decentralized price feeds to AI agents and IDEs via stdio transport. The server exposes 5 tools, 4 prompts, and 3 resources for querying and analyzing market data. Binary API responses were replaced with parsed JSON for clean, human-readable outputs. An experimental FastMCP version using HTTP/SSE was also implemented for testing and performance comparison.

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