Blocknative MCP Server
An MCP server that provides real-time gas price predictions across multiple blockchains, powered by Blocknative.
Features
- Tools:
predict_gas_price: Fetches gas price predictions for a specified chain (default: Ethereum Mainnet,chain_id=1), including base fee and a table with confidence levels, price, max priority fee, and max fee.estimate_gas_cost: Estimates transaction costs based on gas limit, confidence level, and chain ID, returning costs in Gwei and ETH.get_supported_chains: Lists supported blockchains in a table with chain ID, system, and network.
- Prompt:
gas_price_query: A prompt template for querying gas prices at a specific confidence level and chain ID.
- Asynchronous: Uses
httpxfor non-blocking HTTP requests to Blocknative's Gas Price and Chains APIs. - Optional API Key: Supports low-frequency access without a Blocknative API key; high-frequency use requires setting
BLOCKNATIVE_API_KEY.
Prerequisites
- Python: Version 3.10
- uv: For dependency management and running the project (installation guide)
- Blocknative API Key (optional): Required for high-frequency API access. Sign up at Blocknative to obtain a free API key.
