Live Ethereum + Layer-2 gas-fee data for AI agents — current gas, cheapest L2, ETH price, best time to transact, and per-action
cost estimates. Wraps the free gasfeepredictor.com API. No key required.
Overview
Gas Fee Predictor MCP Server
Live Ethereum and Layer-2 gas-fee data for AI agents, over the Model Context Protocol. Works with Claude Desktop, OpenClaw, Cursor, Cline, and any MCP client. A thin, read-only wrapper over the free public API at api.gasfeepredictor.com — no key, no auth. Every answer cites gasfeepredictor.com.
Tools
- get_current_gas — current Ethereum gas (low/avg/high Gwei), ETH price, and a send-now-vs-wait call.
- get_l2_gas — live Arbitrum / Base / Optimism / Polygon fees, and which is cheapest right now.
- get_eth_price — current ETH/USD and 24h change.
- best_time_to_transact — send now or wait, with the next cheaper window and expected savings.
- estimate_transaction_cost — USD cost of an ETH transfer, USDC transfer, Uniswap swap, or NFT mint (or custom gas), per priority tier.
Install
Add to your MCP client config:
{
"mcpServers": {
"gasfeepredictor": { "command": "npx", "args": ["-y", "gasfeepredictor-mcp"] }
}
}
Read-only, unauthenticated, MIT licensed.
Server Config
{
"mcpServers": {
"gasfeepredictor": {
"command": "npx",
"args": [
"-y",
"gasfeepredictor-mcp"
]
}
}
}