MCP server: 17 keyless, signed-provenance web-data tools your AI agent can pay for itself over x402 on Base mainnet (USDC). No API key, no account.
Setup
Choose your client, copy the config, then fill in any required environment variables.
Local
claude mcp add mercury-x402 -- npx -y mercury-x402-mcp~/.codex/config.toml
[mcp_servers.mercury-x402]
command = "npx"
args = ["-y", "mercury-x402-mcp"]
# codex mcp add mercury-x402 -- npx -y mercury-x402-mcp~/.cursor/mcp.json
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}.vscode/mcp.json
{
"servers": {
"mercury-x402": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}Remote
claude mcp add --transport http mercury-x402 https://network.mercury-hq.com/mcp~/.codex/config.toml
[mcp_servers.mercury-x402]
url = "https://network.mercury-hq.com/mcp"
# codex mcp add mercury-x402 --url https://network.mercury-hq.com/mcp~/.cursor/mcp.json
{
"mcpServers": {
"mercury-x402": {
"url": "https://network.mercury-hq.com/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"mercury-x402": {
"type": "http",
"url": "https://network.mercury-hq.com/mcp"
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"mercury-x402": {
"httpUrl": "https://network.mercury-hq.com/mcp"
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://network.mercury-hq.com/mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"mercury-x402": {
"url": "https://network.mercury-hq.com/mcp"
}
}
}