Buy Archipelago's Arc token reports, exit costs and wallet balances over x402, within caps you set.
Connect Runs on your machine
claude mcp add archipelago-x402-mcp -e BUYER_PRIVATE_KEY_FILE=<BUYER_PRIVATE_KEY_FILE> -e BUYER_PRIVATE_KEY=<BUYER_PRIVATE_KEY> -e ARCHIPELAGO_X402_MAX_PER_CALL=<ARCHIPELAGO_X402_MAX_PER_CALL> -e ARCHIPELAGO_X402_BUDGET=<ARCHIPELAGO_X402_BUDGET> -- npx -y @archipelagodex/[email protected]{
"mcpServers": {
"archipelago-x402-mcp": {
"command": "npx",
"args": [
"-y",
"@archipelagodex/[email protected]"
],
"env": {
"BUYER_PRIVATE_KEY_FILE": "<BUYER_PRIVATE_KEY_FILE>",
"BUYER_PRIVATE_KEY": "<BUYER_PRIVATE_KEY>",
"ARCHIPELAGO_X402_MAX_PER_CALL": "<ARCHIPELAGO_X402_MAX_PER_CALL>",
"ARCHIPELAGO_X402_BUDGET": "<ARCHIPELAGO_X402_BUDGET>"
}
}
}
}{
"mcpServers": {
"archipelago-x402-mcp": {
"command": "npx",
"args": [
"-y",
"@archipelagodex/[email protected]"
],
"env": {
"BUYER_PRIVATE_KEY_FILE": "<BUYER_PRIVATE_KEY_FILE>",
"BUYER_PRIVATE_KEY": "<BUYER_PRIVATE_KEY>",
"ARCHIPELAGO_X402_MAX_PER_CALL": "<ARCHIPELAGO_X402_MAX_PER_CALL>",
"ARCHIPELAGO_X402_BUDGET": "<ARCHIPELAGO_X402_BUDGET>"
}
}
}
}{
"servers": {
"archipelago-x402-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@archipelagodex/[email protected]"
],
"env": {
"BUYER_PRIVATE_KEY_FILE": "<BUYER_PRIVATE_KEY_FILE>",
"BUYER_PRIVATE_KEY": "<BUYER_PRIVATE_KEY>",
"ARCHIPELAGO_X402_MAX_PER_CALL": "<ARCHIPELAGO_X402_MAX_PER_CALL>",
"ARCHIPELAGO_X402_BUDGET": "<ARCHIPELAGO_X402_BUDGET>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
BUYER_PRIVATE_KEY_FILEOptional | Path of a file whose first word is the private key of a dedicated wallet that holds only the USDC (on Arc) you are willing to spend. Without a key only the free tools appear. |
BUYER_PRIVATE_KEYOptional, secret | The same private key given directly, for a client that keeps its configuration private. A key file is safer: a key typed into a command line lands in shell history. |
ARCHIPELAGO_X402_MAX_PER_CALLOptional | The most one call may cost, in USDC (at most 1). |
ARCHIPELAGO_X402_BUDGETOptional | The most to count as paid or reserved per UTC day, in USDC, across restarts. |
Details
| Package | @archipelagodex/[email protected] (NPM, stdio) |
| First published | 29 Oct 2026 |
| Last updated | 29 Oct 2026 |
| Registry name | io.github.RunTimeAdmin/archipelago-x402-mcp |
More finance and crypto servers See all
Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.