A-Pay Protocol

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Universal HTTP 402 Micropayment Protocol & Autonomous Economic Settlement Engine for AI Agents

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "A-Pay Protocol": {
      "url": "https://apay-network.vercel.app/api/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (5)

• apay_request

  Probe and automatically pay HTTP 402 crypto micropayments on Base Layer 2 with USDC or $APAY within pre-configured budget limits.

  Parameters:

  • url (required) — string — The target endpoint URL
  • method — string
  • headers — object — Optional additional HTTP headers
  • json_body — object — Optional JSON request body

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• apay_get_wallet_status

  Inspect the agent's active non-custodial wallet address, network, current spending guardrails, and total spent in USDC and $APAY.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• apay_set_budget

  Configure agent safety invariants and spending guardrails. Prevents runaway loops or overcharging.

  Parameters:

  • daily_budget_apay — number — Maximum $APAY token rolling 24-hour spending budget
  • daily_budget_usdc — number — Maximum USDC rolling 24-hour spending budget
  • max_per_call_apay — number — Maximum $APAY token allowance for a single API call
  • max_per_call_usdc — number — Maximum USDC allowance for a single API call

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• apay_inspect_endpoint

  Inspect an endpoint to check if it requires an A-Pay micropayment, inspect the exact price quote, currency, and payout receiver without spending any funds.

  Parameters:

  • url (required) — string — The URL to probe for HTTP 402 payment requirements

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• apay_get_balance

  Inspect the agent's live on-chain balances on Base Layer 2, including native ETH (for gas), USDC, and $APAY tokens.

  Parameters:

  • address — string — Optional target EVM address to inspect balances for

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.