Base Gas Mcp
Live Base gas, tx cost in USD, 4-chain comparison and gas history. Paid per call in USDC via x402.
Install
registry version 0.3.2
npm
npx -y base-gas-mcpnpm
npx -y base-gas-mcp@0.3.2
Setup by client
Pick your client — the config below is generated for this server (local stdio). Copy respects the “Pin version” switch above.
claude_desktop_config.json
{
"mcpServers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}{
"mcpServers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp@0.3.2"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}Format verified against the official Claude Desktop docs ↗.
terminal
claude mcp add --env BUYER_PRIVATE_KEY=<YOUR_BUYER_PRIVATE_KEY> base-gas-mcp -- npx -y base-gas-mcp
claude mcp add --env BUYER_PRIVATE_KEY=<YOUR_BUYER_PRIVATE_KEY> base-gas-mcp -- npx -y base-gas-mcp@0.3.2
Format verified against the official Claude Code docs ↗.
.cursor/mcp.json
{
"mcpServers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}{
"mcpServers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp@0.3.2"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}Format verified against the official Cursor docs ↗.
.vscode/mcp.json
{
"servers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp@0.3.2"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}Format verified against the official VS Code docs ↗.
mcp_config.json
{
"mcpServers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}{
"mcpServers": {
"base-gas-mcp": {
"command": "npx",
"args": [
"-y",
"base-gas-mcp@0.3.2"
],
"env": {
"BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>"
}
}
}
}Format verified against the official Windsurf docs ↗.
Environment variables
Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.
BUYER_PRIVATE_KEYrequired secret — Private key of a Base mainnet wallet holding a little USDC. Pays $0.002 to $0.02 per call. Use a separate wallet with small funds.MAX_USD_PER_CALL— Refuse any single payment above this many USD. Default 0.05.
About this server
Distributed as npm, listed under Developer Tools. Review our MCP security guide before granting access to real data.
Frequently asked questions
How do I install Base Gas Mcp?
Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.
Is Base Gas Mcp free to use?
The MCP server itself is free to install. The source is public on https://github.com/memosr/base-gas-mcp. Any third-party service it calls may require its own API key and account.
Which clients support Base Gas Mcp?
Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.
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