CRA AGENT MCP Server

Lets an agent pay for x402 APIs in USDC on Arc, under a spending policy it cannot change.

Local serverstdio

What is the CRA AGENT MCP Server?

CRA AGENT is an MCP integration. Lets an agent pay for x402 APIs in USDC on Arc, under a spending policy it cannot change.

Packages and local setup

The published npm package is @cra-agent/mcp, version 0.0.11. Its declared MCP transport is stdio.

The package declares CRA_NETWORK (required): arc (mainnet) or arcTestnet; CRA_KEY_FILE (required): Path to a chmod 600 file holding the agent's private key. Never put the key in a prompt.; CRA_POLICY: Spending limits, e.g. daily=5,per_seller=0.5,per_payment=0.05; CRA_RPC_URL: Optional RPC endpoints, comma separated, in priority order; DATABASE_URL: Optional Postgres for the ledger; in memory without it.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.0.11 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

Browse related other integrations MCP servers for tools that cover the same kind of work.

Configuration

VariableDescriptionRequired
CRA_NETWORKarc (mainnet) or arcTestnetYes
CRA_KEY_FILEPath to a chmod 600 file holding the agent's private key. Never put the key in a prompt.Yes
CRA_POLICYSpending limits, e.g. daily=5,per_seller=0.5,per_payment=0.05Optional
CRA_RPC_URLOptional RPC endpoints, comma separated, in priority orderOptional
DATABASE_URLOptional Postgres for the ledger; in memory without itOptional