575+ agent tools: data, AI gateway, storage/queues/watchers. x402 USDC, no keys, usage billing.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add 2s-io --env EVM_PRIVATE_KEY='<EVM_PRIVATE_KEY>' -- npx -y @2sio/mcp~/.codex/config.toml
[mcp_servers.2s-io]
command = "npx"
args = ["-y", "@2sio/mcp"]
env = { EVM_PRIVATE_KEY = "<EVM_PRIVATE_KEY>" }
# codex mcp add 2s-io --env EVM_PRIVATE_KEY='<EVM_PRIVATE_KEY>' -- npx -y @2sio/mcp~/.cursor/mcp.json
{
"mcpServers": {
"2s-io": {
"command": "npx",
"args": [
"-y",
"@2sio/mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"2s-io": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@2sio/mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"2s-io": {
"command": "npx",
"args": [
"-y",
"@2sio/mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"2s-io": {
"command": "npx",
"args": [
"-y",
"@2sio/mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"2s-io": {
"command": "npx",
"args": [
"-y",
"@2sio/mcp"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}Environment variables
EVM_PRIVATE_KEY
Replace the placeholders with your own credentials and keep them out of version control.