Archipelago on Arc MCP Server

io.github.RunTimeAdmin/archipelago-x402-mcpv0.1.0

Buy Archipelago's Arc token reports, exit costs and wallet balances over x402, within caps you set.

Node.jsstdioofficial registry

context tax

pending

security

pending

cold start

pending

freshness

pending

Our reading of Archipelago on Arc, from the data

Archipelago on Arc is a finance & fintech MCP server, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

It runs locally on your machine over stdio and needs one secret (BUYER_PRIVATE_KEY); use a scoped, least-privilege key.

Install Archipelago on Arc MCP server

claude mcp add archipelago-x402 -e BUYER_PRIVATE_KEY='<buyer-private-key>' -- npx -y @archipelagodex/archipelago-x402-mcp

{
  "mcpServers": {
    "archipelago-x402": {
      "command": "npx",
      "args": [
        "-y",
        "@archipelagodex/archipelago-x402-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<buyer-private-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "archipelago-x402": {
      "command": "npx",
      "args": [
        "-y",
        "@archipelagodex/archipelago-x402-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<buyer-private-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "archipelago-x402": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@archipelagodex/archipelago-x402-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<buyer-private-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "archipelago-x402": {
      "command": "npx",
      "args": [
        "-y",
        "@archipelagodex/archipelago-x402-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<buyer-private-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
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	—	yes	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.

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
no data · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-14 · 4d ago · official registry · v0.1.0

How it compares in Finance & Fintech

Against the most-starred finance & fintech servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Archipelago on Arc (this)	—	—	not measured	—	local
CCXT	44,454	—	not measured	Active	local
Finance Toolkit	5,439	—	not measured	Active	local + hosted
Agent Toolkit	1,960	—	not measured	Active	hosted
Stripe	1,960	—	not measured	Active	local
Tradememory Protocol	1,430	—	not measured	Active	local

All finance & fintech MCP servers

FAQ

›How do I install the Archipelago on Arc MCP server in Claude Code?

Run: claude mcp add archipelago-x402 -e BUYER_PRIVATE_KEY='<buyer-private-key>' -- npx -y @archipelagodex/archipelago-x402-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Archipelago on Arc require an API key?

Yes. It expects BUYER_PRIVATE_KEY, of which 1 is a secret.

›Can I use Archipelago on Arc as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Archipelago on Arc in the official MCP registry?

Yes, as io.github.RunTimeAdmin/archipelago-x402-mcp.

Sources and method

Official MCP Registry entry: updated 2026-10-14
Package registry (npm / PyPI): listed
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.