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": "USDC on Base is listed first, because that is where most paying agents hold USDC. Arc USDC and Solana USDC are in accepts[] as well. X1 takes XNT on the X1 entry. Pay the payTo named on the entry you choose.",
  "error": "Payment required",
  "hello": "We see you, roundhouse-indexer. You have called us 275 times since 2026-09-27. Thank you for coming.",
  "accepts": [
    {
      "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": "3000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 8453,
      "network": "base",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.003",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/prediction-movers",
      "priceMinor": 3000,
      "description": "Prediction markets moving right now: the Polymarket markets whose odds moved most in the last 24 h (or &window=1h / 1w), among the ~500 most traded open markets, with the move (0.24 = up 24 points), the price now, best bid/ask, 24 h volume, liquidity, end date and a link. Optional &limit=1..50 (default 20) and &min_volume= (24 h USD, default 10000). Read live from Polymarket's public API, at most 60 s old. Market prices, not advice; we do not trade on Polymarket.",
      "networkName": "base",
      "validForSec": 300,
      "networkCaip2": "eip155:8453",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "20",
            "window": "24h",
            "min_volume": "10000"
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "data": {
                "type": "object"
              },
              "paid": {
                "type": "number"
              }
            }
          },
          "example": {
            "ok": true,
            "data": {
              "at": "2026-11-08T03:39:12.320Z",
              "ok": true,
              "note": "Market prices, not advice and not a fore…",
              "movers": [
                {
                  "url": "https://polymarket.com/event/cbb-nill-da…",
                  "ends": "2026-11-08T00:00:00Z",
                  "event": "Northern Illinois Huskies vs. Dayton Fly…",
                  "change": 0.9645,
                  "market": "Northern Illinois Huskies vs. Dayton Fly…",
                  "best_ask": 1,
                  "best_bid": 0.999,
                  "price_now": 0.999,
                  "liquidity_usd": 14961,
                  "volume_24h_usd": 13383
                }
              ],
              "source": "gamma-api.polymarket.com, the ~500 most …",
              "window": "24h",
              "partial": false,
              "how_to_read": "change = how much the price of the Yes s…",
              "markets_scanned": 500,
              "min_volume_24h_usd": 10000
            },
            "paid": 0.003
          }
        }
      },
      "priceDisplay": "0.003 USDC",
      "replayHeader": "X-PAYMENT-BASE",
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 300
    },
    {
      "rpc": "https://api.mainnet-beta.solana.com",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
      },
      "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "amount": "3000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": "solana-mainnet",
      "network": "solana",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.003",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/prediction-movers",
      "priceMinor": 3000,
      "description": "Prediction markets moving right now: the Polymarket markets whose odds moved most in the last 24 h (or &window=1h / 1w), among the ~500 most traded open markets, with the move (0.24 = up 24 points), the price now, best bid/ask, 24 h volume, liquidity, end date and a link. Optional &limit=1..50 (default 20) and &min_volume= (24 h USD, default 10000). Read live from Polymarket's public API, at most 60 s old. Market prices, not advice; we do not trade on Polymarket.",
      "networkName": "solana",
      "validForSec": 300,
      "networkCaip2": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "20",
            "window": "24h",
            "min_volume": "10000"
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "data": {
                "type": "object"
              },
              "paid": {
                "type": "number"
              }
            }
          },
          "example": {
            "ok": true,
            "data": {
              "at": "2026-11-08T03:39:12.320Z",
              "ok": true,
              "note": "Market prices, not advice and not a fore…",
              "movers": [
                {
                  "url": "https://polymarket.com/event/cbb-nill-da…",
                  "ends": "2026-11-08T00:00:00Z",
                  "event": "Northern Illinois Huskies vs. Dayton Fly…",
                  "change": 0.9645,
                  "market": "Northern Illinois Huskies vs. Dayton Fly…",
                  "best_ask": 1,
                  "best_bid": 0.999,
                  "price_now": 0.999,
                  "liquidity_usd": 14961,
                  "volume_24h_usd": 13383
                }
              ],
              "source": "gamma-api.polymarket.com, the ~500 most …",
              "window": "24h",
              "partial": false,
              "how_to_read": "change = how much the price of the Yes s…",
              "markets_scanned": 500,
              "min_volume_24h_usd": 10000
            },
            "paid": 0.003
          }
        }
      },
      "priceDisplay": "0.003 USDC",
      "replayHeader": "X-PAYMENT-SOL",
      "maxAmountRequired": "3000",
      "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": "3000",
      "scheme": "exact",
      "symbol": "USDC",
      "chainId": 5042,
      "network": "arc",
      "decimals": 6,
      "mimeType": "application/json",
      "priceUsd": "~$0.003",
      "receiver": "0xd334ab5151c624cada654854e2879903dc4217ed",
      "resource": "https://apexfaucet.xyz/api/x402/prediction-movers",
      "priceMinor": 3000,
      "description": "Prediction markets moving right now: the Polymarket markets whose odds moved most in the last 24 h (or &window=1h / 1w), among the ~500 most traded open markets, with the move (0.24 = up 24 points), the price now, best bid/ask, 24 h volume, liquidity, end date and a link. Optional &limit=1..50 (default 20) and &min_volume= (24 h USD, default 10000). Read live from Polymarket's public API, at most 60 s old. Market prices, not advice; we do not trade on Polymarket.",
      "networkName": "arc",
      "validForSec": 300,
      "networkCaip2": "eip155:5042",
      "priceDisplay": "0.003 USDC",
      "replayHeader": "X-PAYMENT-ARC",
      "maxAmountRequired": "3000",
      "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": "12200000",
      "scheme": "exact",
      "symbol": "XNT",
      "chainId": "x1-mainnet",
      "network": "x1",
      "decimals": 9,
      "mimeType": "application/json",
      "priceUsd": "~$0.003",
      "receiver": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
      "resource": "https://apexfaucet.xyz/api/x402/prediction-movers",
      "priceMinor": 12200000,
      "description": "Prediction markets moving right now: the Polymarket markets whose odds moved most in the last 24 h (or &window=1h / 1w), among the ~500 most traded open markets, with the move (0.24 = up 24 points), the price now, best bid/ask, 24 h volume, liquidity, end date and a link. Optional &limit=1..50 (default 20) and &min_volume= (24 h USD, default 10000). Read live from Polymarket's public API, at most 60 s old. Market prices, not advice; we do not trade on Polymarket.",
      "networkName": "x1",
      "validForSec": 300,
      "priceDisplay": "0.0122 XNT",
      "replayHeader": "X-PAYMENT",
      "maxAmountRequired": "12200000",
      "maxTimeoutSeconds": 300
    }
  ],
  "clients": "https://apexfaucet.xyz/x402-clients/",
  "revenue": "Payments settle to the receive address named in accepts[].payTo; we never hold your keys.",
  "version": "1",
  "cardPass": {
    "buy": "https://apexfaucet.xyz/pass/",
    "what": "$5 by card, tax included: a key that pays this and every other tool at list prices; no crypto wallet needed",
    "header": "X-APEX-PASS"
  },
  "resource": "/api/x402/prediction-movers",
  "standard": "x402",
  "discovery": "/.well-known/x402",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "limit": "20",
            "window": "24h",
            "min_volume": "10000"
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              },
              "data": {
                "type": "object"
              },
              "paid": {
                "type": "number"
              }
            }
          },
          "example": {
            "ok": true,
            "data": {
              "at": "2026-11-08T03:39:12.320Z",
              "ok": true,
              "note": "Market prices, not advice and not a fore…",
              "movers": [
                {
                  "url": "https://polymarket.com/event/cbb-nill-da…",
                  "ends": "2026-11-08T00:00:00Z",
                  "event": "Northern Illinois Huskies vs. Dayton Fly…",
                  "change": 0.9645,
                  "market": "Northern Illinois Huskies vs. Dayton Fly…",
                  "best_ask": 1,
                  "best_bid": 0.999,
                  "price_now": 0.999,
                  "liquidity_usd": 14961,
                  "volume_24h_usd": 13383
                }
              ],
              "source": "gamma-api.polymarket.com, the ~500 most …",
              "window": "24h",
              "partial": false,
              "how_to_read": "change = how much the price of the Yes s…",
              "markets_scanned": 500,
              "min_volume_24h_usd": 10000
            },
            "paid": 0.003
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "limit": {
                    "type": "string",
                    "pattern": "^[0-9]{1,2}$",
                    "description": "Markets to return, 1 to 50 (default 20)."
                  },
                  "window": {
                    "enum": [
                      "1h",
                      "24h",
                      "1w"
                    ],
                    "type": "string",
                    "description": "Window of the move (default 24h)."
                  },
                  "min_volume": {
                    "type": "string",
                    "pattern": "^[0-9]{1,10}$",
                    "description": "Only markets with at least this 24 h volume in USD (default 10000)."
                  }
                }
              }
            }
          },
          "output": {
            "type": "object"
          }
        }
      }
    }
  },
  "whatWeSell": "https://apexfaucet.xyz/.well-known/x402",
  "facilitator": "/api/x402/verify",
  "x402Version": 1,
  "holderAccess": {
    "rule": "value at the live pool price when you qualify; after that, selling or moving the tokens ends it for good",
    "sign": "personal_sign of \"APEX data access for <your address, lowercase> at <unix seconds>\" with the holding wallet",
    "chain": "Arc (eip155:5042)",
    "tiers": [
      {
        "free": "lifetime",
        "holdUsd": 10000
      },
      {
        "free": "year",
        "holdUsd": 500
      },
      {
        "free": "month",
        "holdUsd": 50
      }
    ],
    "token": "0xaaedbd8c51645c6669692d32c67625527121f3aa",
    "header": "X-APEX-HOLDER: <address>.<unix seconds>.<signature>",
    "dailyCap": 1000,
    "buyFaucet": "https://ubi.fun/markets/0xaaedbd8c51645c6669692d32c67625527121f3aa",
    "lifetimeKey": {
      "buy": "https://apexfaucet.xyz/api/pay/unlock?product=lifetime&tx=<transaction>",
      "header": "X-Unlock",
      "priceUsd": 10000
    }
  },
  "instructions": [
    "Standard x402: sign the first accepts[] entry you can pay. Base USDC is listed first. Sign an EIP-3009 transferWithAuthorization and send it base64 in PAYMENT-SIGNATURE. We settle it and you pay no gas. Arc USDC works the same way. Solana USDC uses the fee payer named on that entry.",
    "Or pay yourself on one network and replay the transaction:",
    "— Base USDC: send 0.003 USDC to the Base payTo in accepts[]; replay with header X-PAYMENT-BASE: <tx_hash>",
    "— Arc USDC: send 0.003 USDC to the Arc payTo in accepts[]; replay with header X-PAYMENT-ARC: <tx_hash>",
    "— Solana USDC: send 0.003 USDC to HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ on Solana mainnet; replay with header X-PAYMENT-SOL: <tx_sig>",
    "— X1 native: send 0.0122 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": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "3000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "3000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "GatewayWalletBatched",
      "note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "3000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "GatewayWalletBatched",
      "note": "Circle Gateway nanopayment: pay from your Gateway balance with a gas-free signature (validBefore at least 7 days out). Settled by Circle in batches.",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0xd334ab5151c624cada654854e2879903dc4217ed",
    "amount": "3000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "D93NE2kMj88BPsHfdZZ4A1HX2CGo14Y18Bdb3J4qtD5c"
    },
    "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
    "amount": "3000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "native",
    "extra": {
      "rpc": "https://rpc.mainnet.x1.xyz",
      "symbol": "XNT",
      "decimals": 9
    },
    "payTo": "HYiepS7mNCVVKoaDmZLQ6rNtMWHTQqKheM1NLGn1x8kJ",
    "amount": "12400000",
    "scheme": "exact",
    "network": "x1",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "discoverable": true
      },
      "output": {
        "type": "json",
        "description": "Prediction markets moving right now: the Polymarket markets whose odds moved most in the last 24 h (or &window=1h / 1w), among the ~500 most traded open markets, with the move (0.24 = up 24 points), the price now, best bid/ask, 24 h volume, liquidity, end date and a link. Optional &limit=1..50 (default 20) and &min_volume= (24 h USD, default 10000). Read live from Polymarket's public API, at most 60 s old. Market prices, not advice; we do not trade on Polymarket."
      }
    },
    "routeTemplate": "/api/x402/prediction-movers"
  }
}

Provenance

Seen in the source catalog

—

Last indexed by Roundhouse

2026-10-29 09:45Z

Last enriched (probe, favicon, geo)

2026-11-11 13:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402