MCP server exposing 9 anchor-x402 services as agent tools. Pay-per-call USDC via x402 on Base mainnet. Works with Claude Desktop / Claude Code / Cursor / any MCP client.
Setup
Choose your client, copy the config, then fill in any required environment variables.
Local
claude mcp add anchor-x402 --env ANCHOR_WALLET_PRIVATE_KEY='<ANCHOR_WALLET_PRIVATE_KEY>' -- npx -y anchor-x402-mcp~/.codex/config.toml
[mcp_servers.anchor-x402]
command = "npx"
args = ["-y", "anchor-x402-mcp"]
env = { ANCHOR_WALLET_PRIVATE_KEY = "<ANCHOR_WALLET_PRIVATE_KEY>" }
# codex mcp add anchor-x402 --env ANCHOR_WALLET_PRIVATE_KEY='<ANCHOR_WALLET_PRIVATE_KEY>' -- npx -y anchor-x402-mcp~/.cursor/mcp.json
{
"mcpServers": {
"anchor-x402": {
"command": "npx",
"args": [
"-y",
"anchor-x402-mcp"
],
"env": {
"ANCHOR_WALLET_PRIVATE_KEY": "<ANCHOR_WALLET_PRIVATE_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"anchor-x402": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"anchor-x402-mcp"
],
"env": {
"ANCHOR_WALLET_PRIVATE_KEY": "<ANCHOR_WALLET_PRIVATE_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"anchor-x402": {
"command": "npx",
"args": [
"-y",
"anchor-x402-mcp"
],
"env": {
"ANCHOR_WALLET_PRIVATE_KEY": "<ANCHOR_WALLET_PRIVATE_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"anchor-x402": {
"command": "npx",
"args": [
"-y",
"anchor-x402-mcp"
],
"env": {
"ANCHOR_WALLET_PRIVATE_KEY": "<ANCHOR_WALLET_PRIVATE_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"anchor-x402": {
"command": "npx",
"args": [
"-y",
"anchor-x402-mcp"
],
"env": {
"ANCHOR_WALLET_PRIVATE_KEY": "<ANCHOR_WALLET_PRIVATE_KEY>"
}
}
}
}Remote
claude mcp add --transport http anchor-x402 https://api.anchor-x402.com/mcp~/.codex/config.toml
[mcp_servers.anchor-x402]
url = "https://api.anchor-x402.com/mcp"
# codex mcp add anchor-x402 --url https://api.anchor-x402.com/mcp~/.cursor/mcp.json
{
"mcpServers": {
"anchor-x402": {
"url": "https://api.anchor-x402.com/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"anchor-x402": {
"type": "http",
"url": "https://api.anchor-x402.com/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"anchor-x402": {
"httpUrl": "https://api.anchor-x402.com/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"anchor-x402": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://api.anchor-x402.com/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"anchor-x402": {
"url": "https://api.anchor-x402.com/mcp"
}
}
}Environment variables
ANCHOR_WALLET_PRIVATE_KEY
Replace the placeholders with your own credentials and keep them out of version control.