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graded.sh v1 topup
https://graded.sh/v1/topup
answers 402
Graded x402 gateway: one MCP endpoint to discover quality-graded x402 services (ranked by real 30-day demand) and call them pay-per-use with prepaid credits. Top up 0.10 USDC per pack; the gateway fronts every upstream payment.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.10
- Network
- base
- Pay to
- 0xa8B061d96F69426f11bcC807BfA00f0AF79541a7
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 240 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:28:01.130Z (1h ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fgraded.sh%2Fv1%2Ftopup"