Skip to main content
GMGN provides token swap routing and onchain market intelligence for Base. The plugin calls the GMGN HTTP API to obtain unsigned swap calldata, gas-price tiers, and trending token data, then submits prepared swap calls through Base MCP send_calls. Chain: Base mainnet. Operations: swap quotes, ERC-20 approval calls, swap execution, gas-price reads, trending-token reads, and market-intelligence summaries.
CLI-only and API-key authenticated. Every GMGN request needs a fresh shell-generated timestamp and UUID plus the X-APIKEY header. Confirm slippage and inspect low-liquidity tokens before swaps.

​
Try it

Swap ETH
Swap 0.00001 ETH for a token on Base
Swap USDC
Swap 100 USDC for ETH on Base
Trending
Show trending tokens on Base

​
Pattern

The assistant generates auth parameters with shell commands, fetches a GMGN quote, shows expected output and minimum output, then builds a send_calls batch from data.tx.approve_txs followed by the swap call { to: data.tx.to, value: data.tx.value, data: data.tx.data }. Native ETH inputs usually have no approval calls. ERC-20 inputs include the returned approval transaction before the swap. The assistant polls get_request_status only after Base Account approval.

​
Reference

Full plugin spec on GitHub

Auth parameters, quote endpoint, gas-price endpoint, trending-token endpoint, calldata mapping, and risk notes.