Agent402.Tools: pay-per-call web tools

Remote (streamable-http)

https://agent402.tools/mcp Responded, but not as an MCP endpoint

Claude Code:

claude mcp add --transport http agent402 https://agent402.tools/mcp

Or add to your MCP client config:

{
  "mcpServers": {
    "agent402": {
      "url": "https://agent402.tools/mcp"
    }
  }
}

Package (npm 0.13.31)

npx -y [email protected]

Or add to your MCP client config:

{
  "mcpServers": {
    "agent402": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "AGENT_KEY": "<YOUR_VALUE>",
        "AGENT402_CREDITS_KEY": "<YOUR_VALUE>",
        "SOLANA_AGENT_KEY": "<YOUR_VALUE>"
      }
    }
  }
}

• AGENT_KEY secret — Hex private key of an EVM wallet funded with USDC on any EVM rail the server offers (Base, Polygon, Arbitrum, Monad, Celo, Avalanche, Sei, Optimism, Arc, Ink) or USDG on Robinhood Chain; use SOLANA_AGENT_KEY for Solana. Stellar and Algorand are not signed by this package. Unset = proof-of-work mode (free pure-CPU tools).
• AGENT402_BUDGET — Optional hard cap on total USD spent per session (e.g. 1.00; unset or off = no session cap). Enforced on the payment that is signed.
• AGENT402_MAX_PER_CALL — Max USD price for any single call (default 4; e.g. 0.05; off disables). Enforced on the payment that is signed.
• AGENT402_CREDITS_KEY secret — Prepaid credits key (a402_...) for Agent402's own services. With it set and no wallet key, every tool except the wallet-scoped ones (memory, usage) and the outside-seller routes (router.execute, seller-payability, decide.execute, the flight tools) is debited from the key; the list price is debited only on a successful call.
• SOLANA_AGENT_KEY secret — Optional base58 (or JSON byte-array) secret key of a Solana wallet funded with USDC on Solana.
• AGENT402_NETWORKS — Optional: restrict and order the chains to pay on (e.g. "base,solana" or a CAIP-2 like eip155:4663).