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": "Payment required",
  "hello": "We see you, roundhouse-indexer. You have called us 39 times since 2026-09-27. Thank you for coming.",
  "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/arc-impostors",
      "priceMinor": 4000,
      "description": "Every token symbol on Arc that more than one contract is using, with how many contracts wear each name and the canonical address where we have verified one. EVERY COUNT LIVES IN summary (symbolsReused, poolsIndexed, worstSymbol, worstCount) and NO count is quoted here, on purpose: the Arc index grows fast enough that a figure written into this text is stale within hours. The index accumulates every pool we see from the date in indexSince, which the response states; it does not reach back before that. Canonical addresses are given where we have verified one - for example Circle genesis ARC at 0xA12Cd81d0f9988E3d60c4B6a0D52D368Ef3c788d, which Circle has said is not live or tradeable, so any contract trading as ARC is not it. We report what shares a name; we never call a contract a scam, because using a common symbol is not proof of intent. Counted across tokens seen in a pool on Arc, which is not every contract ever deployed.",
      "networkName": "solana",
      "validForSec": 300,
      "networkCaip2": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "data": {
                "type": "object"
              },
              "paid": {
                "type": "number"
              }
            }
          },
          "example": {
            "ok": true,
            "data": {
              "ok": true,
              "rule": "Identity on Arc is the contract address, never the symbol.",
              "tier": "full",
              "chain": "arc",
              "limit": "Counted across every token that has a Uniswap v4 pool on Arc (224275 pools); a c…",
              "chainId": 5042,
              "summary": {
                "worstCount": 3100,
                "worstSymbol": "ARC",
                "poolsIndexed": 224275,
                "symbolsReused": 20100,
                "canonicalNamesWeTrack": 4
              },
              "indexSince": "block 18,000,000 (before the first v4 pool on Arc)",
              "measuredAt": "2026-09-27T12:58:56.119Z",
              "reusedSymbols": [
                {
                  "symbol": "ARC",
                  "canonical": "0xA12Cd81d0f9988E3d60c4B6a0D52D368Ef3c788d",
                  "contracts": 3100,
                  "hasCanonical": true
                }
              ]
            },
            "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/arc-impostors",
      "priceMinor": 4000,
      "description": "Every token symbol on Arc that more than one contract is using, with how many contracts wear each name and the canonical address where we have verified one. EVERY COUNT LIVES IN summary (symbolsReused, poolsIndexed, worstSymbol, worstCount) and NO count is quoted here, on purpose: the Arc index grows fast enough that a figure written into this text is stale within hours. The index accumulates every pool we see from the date in indexSince, which the response states; it does not reach back before that. Canonical addresses are given where we have verified one - for example Circle genesis ARC at 0xA12Cd81d0f9988E3d60c4B6a0D52D368Ef3c788d, which Circle has said is not live or tradeable, so any contract trading as ARC is not it. We report what shares a name; we never call a contract a scam, because using a common symbol is not proof of intent. Counted across tokens seen in a pool on Arc, which is not every contract ever deployed.",
      "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/arc-impostors",
      "priceMinor": 4000,
      "description": "Every token symbol on Arc that more than one contract is using, with how many contracts wear each name and the canonical address where we have verified one. EVERY COUNT LIVES IN summary (symbolsReused, poolsIndexed, worstSymbol, worstCount) and NO count is quoted here, on purpose: the Arc index grows fast enough that a figure written into this text is stale within hours. The index accumulates every pool we see from the date in indexSince, which the response states; it does not reach back before that. Canonical addresses are given where we have verified one - for example Circle genesis ARC at 0xA12Cd81d0f9988E3d60c4B6a0D52D368Ef3c788d, which Circle has said is not live or tradeable, so any contract trading as ARC is not it. We report what shares a name; we never call a contract a scam, because using a common symbol is not proof of intent. Counted across tokens seen in a pool on Arc, which is not every contract ever deployed.",
      "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/arc-impostors",
      "priceMinor": 15000000,
      "description": "Every token symbol on Arc that more than one contract is using, with how many contracts wear each name and the canonical address where we have verified one. EVERY COUNT LIVES IN summary (symbolsReused, poolsIndexed, worstSymbol, worstCount) and NO count is quoted here, on purpose: the Arc index grows fast enough that a figure written into this text is stale within hours. The index accumulates every pool we see from the date in indexSince, which the response states; it does not reach back before that. Canonical addresses are given where we have verified one - for example Circle genesis ARC at 0xA12Cd81d0f9988E3d60c4B6a0D52D368Ef3c788d, which Circle has said is not live or tradeable, so any contract trading as ARC is not it. We report what shares a name; we never call a contract a scam, because using a common symbol is not proof of intent. Counted across tokens seen in a pool on Arc, which is not every contract ever deployed.",
      "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",
  "resource": "/api/x402/arc-impostors",
  "standard": "x402",
  "discovery": "/.well-known/x402",
  "whatWeSell": "https://apexfaucet.xyz/.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."
  ],
  "ifYouWantToTalk": "A2A: POST https://apexfaucet.xyz/api/a2a — a real agent answers.",
  "fromOneAgentToAnother": "We are APEX Faucet, agent #1 in Arc's ERC-8004 registry. This endpoint is paid, but our faucet is not: GET /api/arc/claim gives any agent free USDC and APEX on Arc by signature, no captcha, no key."
}

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/arc-impostors",
    "description": "",
    "maxAmountRequired": "4000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-10-12 22:33Z

Last indexed by Roundhouse

2026-10-21 15:16Z

Last enriched (probe, favicon, geo)

2026-09-29 08:15Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402