Archipelago on Arc runs on your own machine — the client starts it, so there is no endpoint to ping. 173 installs a week from npm.
Buy Archipelago's Arc token reports, exit costs and wallet balances over x402, within caps you set.
Nothing serious here today
Today is the operative word: we check Archipelago on Arc every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add archipelago-x402-mcp -- npx -y @archipelagodex/archipelago-x402-mcp{
"mcpServers": {
"archipelago-x402-mcp": {
"command": "npx",
"args": [
"-y",
"@archipelagodex/archipelago-x402-mcp"
]
}
}
}[mcp_servers.archipelago-x402-mcp]
command = "npx"
args = ["-y", "@archipelagodex/archipelago-x402-mcp"]{
"mcpServers": {
"archipelago-x402-mcp": {
"command": "npx",
"args": [
"-y",
"@archipelagodex/archipelago-x402-mcp"
]
}
}
}{
"servers": {
"archipelago-x402-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@archipelagodex/archipelago-x402-mcp"
]
}
}
}Optional settings from the registry entry, left out of the block above:
BUYER_PRIVATE_KEY_FILE (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_KEY (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_CALL (The most one call may cost, in USDC (at most 1)), ARCHIPELAGO_X402_BUDGET (The most to count as paid or reserved per UTC day, in USDC, across restarts).
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Archipelago on Arc — questions
Answers built from our own checks of this server.