apexfaucet.xyz

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "note": "X1 is a Solana fork. The same address (HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ) receives funds on both chains. Solana-native agents can pay USDC without bridging anything.",
  "error": "missing required parameters: chain, address — nothing has been charged.",
  "usage": "/api/x402/contract-flags?chain=base&address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "accepts": [
    {
      "rpc": "https://api.mainnet-beta.solana.com",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
      },
      "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "amount": "4000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": "solana-mainnet",
      "network": "solana",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.004",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/contract-flags",
      "priceMinor": 4000,
      "description": "What can the people behind this contract do to holders? Pass ?chain=base|arc&address=0x... and we read its bytecode on chain (and the code behind a proxy): mint, pause, blacklist, change fees or taxes, cap wallets, switch trading off, upgrade the code. Plus proxy type, who owns it now (renounced or a live wallet or contract) and basic token data. Facts about what the code allows, not a forecast.",
      "networkName": "solana",
      "validForSec": 300,
      "networkCaip2": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "chain": "base",
            "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "data": {
                "type": "object"
              },
              "paid": {
                "type": "number"
              }
            }
          },
          "example": {
            "ok": true,
            "data": {
              "ok": true,
              "how": "bytecode read on chain (…",
              "chain": "base",
              "flags": [],
              "owner": {},
              "proxy": {},
              "token": {},
              "address": "0x833589fCD6eDb6E08f4c7C…",
              "verdict": "PRIVILEGED POWERS IN THE…",
              "explorer": "https://basescan.org/add…",
              "isContract": true,
              "bytecodeBytes": 1852
            },
            "paid": 0.004
          }
        }
      },
      "priceDisplay": "0.004 USDC",
      "replayHeader": "X-PAYMENT-SOL",
      "maxAmountRequired": "4000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://rpc.mainnet.arc.io",
      "asset": "0x3600000000000000000000000000000000000000",
      "extra": {
        "name": "USDC",
        "note": "Standard x402: sign an EIP-3009 transferWithAuthorization for this amount to payTo and send it base64 in PAYMENT-SIGNATURE - we settle it, you pay no gas. Or, because USDC is also the native gas token on Arc, send a plain value transfer to payTo and replay the transaction hash in X-PAYMENT-ARC.",
        "version": "2",
        "credentialTypes": [
          "authorization"
        ]
      },
      "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "amount": "4000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 5042,
      "network": "arc",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.004",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/contract-flags",
      "priceMinor": 4000,
      "description": "What can the people behind this contract do to holders? Pass ?chain=base|arc&address=0x... and we read its bytecode on chain (and the code behind a proxy): mint, pause, blacklist, change fees or taxes, cap wallets, switch trading off, upgrade the code. Plus proxy type, who owns it now (renounced or a live wallet or contract) and basic token data. Facts about what the code allows, not a forecast.",
      "networkName": "arc",
      "validForSec": 300,
      "networkCaip2": "eip155:5042",
      "priceDisplay": "0.004 USDC",
      "replayHeader": "X-PAYMENT-ARC",
      "maxAmountRequired": "4000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://mainnet.base.org",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "note": "Standard x402: sign an EIP-3009 transferWithAuthorization for this amount to payTo and send it base64 in PAYMENT-SIGNATURE — we settle it, you pay no gas. Or send USDC to payTo and replay the tx hash in X-PAYMENT-BASE.",
        "version": "2",
        "credentialTypes": [
          "authorization"
        ]
      },
      "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "amount": "4000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 8453,
      "network": "base",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.004",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/contract-flags",
      "priceMinor": 4000,
      "description": "What can the people behind this contract do to holders? Pass ?chain=base|arc&address=0x... and we read its bytecode on chain (and the code behind a proxy): mint, pause, blacklist, change fees or taxes, cap wallets, switch trading off, upgrade the code. Plus proxy type, who owns it now (renounced or a live wallet or contract) and basic token data. Facts about what the code allows, not a forecast.",
      "networkName": "base",
      "validForSec": 300,
      "networkCaip2": "eip155:8453",
      "priceDisplay": "0.004 USDC",
      "replayHeader": "X-PAYMENT-BASE",
      "maxAmountRequired": "4000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://rpc.mainnet.x1.xyz",
      "note": "X1 is an SVM chain without a registered CAIP-2 namespace; standard x402 clients cannot pay on it. Pay the USDC option, or send XNT yourself and replay the signature.",
      "asset": "native",
      "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "amount": "15000000",
      "scheme": "exact",
      "symbol": "XNT",
      "chainId": "x1-mainnet",
      "network": "x1",
      "decimals": 9,
      "mimeType": "application/json",
      "priceUsd": "~$0.004",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/contract-flags",
      "priceMinor": 15000000,
      "description": "What can the people behind this contract do to holders? Pass ?chain=base|arc&address=0x... and we read its bytecode on chain (and the code behind a proxy): mint, pause, blacklist, change fees or taxes, cap wallets, switch trading off, upgrade the code. Plus proxy type, who owns it now (renounced or a live wallet or contract) and basic token data. Facts about what the code allows, not a forecast.",
      "networkName": "x1",
      "validForSec": 300,
      "priceDisplay": "0.0150 XNT",
      "replayHeader": "X-PAYMENT",
      "maxAmountRequired": "15000000",
      "maxTimeoutSeconds": 300
    }
  ],
  "revenue": "Payment funds the public APEX faucet — every paid request lets a stranger claim free XNT.",
  "version": "1",
  "required": [
    {
      "name": "chain",
      "example": "base",
      "description": "Which chain: base or arc."
    },
    {
      "name": "address",
      "example": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "description": "The contract address (0x...)."
    }
  ],
  "resource": "/api/x402/contract-flags",
  "standard": "x402",
  "discovery": "/.well-known/x402",
  "facilitator": "/api/x402/verify",
  "x402Version": 1,
  "instructions": [
    "Standard x402 clients: sign the Solana USDC option (exact scheme, fee payer D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c) and send it in the PAYMENT-SIGNATURE header. We settle it and return PAYMENT-RESPONSE with the transaction.",
    "Or pay yourself on ONE network and replay the signature:",
    "— Solana USDC: send 0.004 USDC to HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ on Solana mainnet; replay with header X-PAYMENT-SOL: <tx_sig>",
    "— X1 native: send 0.0150 XNT to HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ on rpc.mainnet.x1.xyz; replay with header X-PAYMENT: <tx_sig>",
    "Every payment is verified on chain before the content is served."
  ]
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://apexfaucet.xyz/api/x402/contract-flags",
    "description": "",
    "maxAmountRequired": "4000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-10-12 22:33Z

Last indexed by Roundhouse

2026-10-26 19:46Z

Last enriched (probe, favicon, geo)

2026-09-29 08:15Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402