badhttp /402/pay
badhttp /402/pay: a real x402 v2 paywall for testing clients. Pay 0.01 USDC on Base mainnet and get a 200 with a PAYMENT-RESPONSE receipt and the transaction hash. Nothing else is sold; sibling endpoints under /402 misbehave on purpose.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
221 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://badhttp.dev/402/pay/base
| Category | Everything else |
|---|---|
| Provider host | badhttp.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.01 | 221 ms |
Example input (from the provider)
{
"method": "GET",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"amount": {
"description": "price in USD, 0.001-1, default 0.01",
"pattern": "^\\d+(\\.\\d{1,6})?$",
"type": "string"
},
"network": {
"description": "base-sepolia is test USDC (the default); base is real USDC on Base mainnet",
"enum": [
"base",
"base-sepolia"
],
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}