Arbiterlabs MCP Server
by godwin105io.github.godwin105/arbiterv0.1.1
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Maintained40d ago
Install Arbiterlabs MCP server
Install in Claude Code
claude mcp add arbiterlabs -e ARBITER_PRIVATE_KEY='<arbiter-private-key>' -- npx -y @arbiterlabs/mcpInstall in Cursor
{
"mcpServers": {
"arbiterlabs": {
"command": "npx",
"args": [
"-y",
"@arbiterlabs/mcp"
],
"env": {
"ARBITER_PRIVATE_KEY": "<arbiter-private-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"arbiterlabs": {
"command": "npx",
"args": [
"-y",
"@arbiterlabs/mcp"
],
"env": {
"ARBITER_PRIVATE_KEY": "<arbiter-private-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"arbiterlabs": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@arbiterlabs/mcp"
],
"env": {
"ARBITER_PRIVATE_KEY": "<arbiter-private-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"arbiterlabs": {
"command": "npx",
"args": [
"-y",
"@arbiterlabs/mcp"
],
"env": {
"ARBITER_PRIVATE_KEY": "<arbiter-private-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| ARBITER_URL | — | — | Arbiter deployment to call. Defaults to the hosted service. |
| ARBITER_PRIVATE_KEY | yes | yes | Base64-encoded 64-byte Algorand private key used to pay for calls. The account needs USDC and must be opted in to the USDC asset. Without it every request stops at the paywall. |
| ARBITER_MAX_SPEND_USD | — | — | Lifetime spending cap for this process, in USD. Enforced before anything is signed. |
| ARBITER_MAX_PRICE_PER_CALL | — | — | Refuse any single call priced above this, in USD. |
Freshness
Maintained — last maintenance signal 40d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-08-31 · 40d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-08-05 · 2mo ago · official registry · v0.1.1
FAQ
›How do I install the Arbiterlabs MCP server in Claude Code?
Run: claude mcp add arbiterlabs -e ARBITER_PRIVATE_KEY='<arbiter-private-key>' -- npx -y @arbiterlabs/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Arbiterlabs require an API key?
Yes. It expects ARBITER_PRIVATE_KEY, of which 1 is a secret.
›Can I use Arbiterlabs as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Arbiterlabs in the official MCP registry?
Yes, as io.github.godwin105/arbiter.