Blockchain-native USDC payments for AI agents on Base chain. Pay for services, manage budgets, and handle micropayments.
Check your balance:
Use apay_check_balance to see my USDC balance
Pay a service:
Use apay_pay_service with serviceId "svc-123" and amount "0.50"
| Tool | Description |
|---|---|
| ------ | ------------- |
apay_check_balance | Check USDC balance, daily budget, spending limits |
apay_budget_check | Verify if a specific amount is affordable |
apay_spending_history | Get spending analytics and history |
| Tool | Description |
|---|---|
| ------ | ------------- |
apay_pay_service | Pay a service (agent pays gas) |
apay_pay_signed | Gasless signed payment (server submits on-chain) |
apay_estimate_cost | Estimate cost including 0.5% platform fee |
| Tool | Description |
|---|---|
| ------ | ------------- |
apay_list_services | List available APay services |
apay_get_service | Get detailed service info |
| Tool | Description |
|---|---|
| ------ | ------------- |
apay_channel_status | Check channel status |
apay_stream_open | Open channel with USDC deposit |
apay_stream_pay | Sign off-chain micropayment |
apay_stream_close | Close channel (refund unspent) |
| Tool | Description |
|---|---|
| ------ | ------------- |
apay_x402_fetch | Fetch URL with automatic x402 payment on HTTP 402 |
apay_budget_check — verify affordabilityapay_estimate_cost — see total with feesapay_pay_service — execute paymentFor services that charge per-request (API calls, data feeds):
apay_stream_open — deposit USDC into channelapay_stream_pay — sign micropayments (off-chain, instant)apay_stream_close — settle on-chain, refund remainderFor services using the HTTP 402 payment protocol:
Use apay_x402_fetch with url "https://api.example.com/premium/data" and maxPayment "1.00"
The tool automatically detects 402 responses, pays the required amount, and retries the request.
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