FiatDock

Live 402 challenge

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

{
  "docs": "https://fiatdock.com/llms.txt",
  "hint": "This endpoint costs $0.0045 USDC per call via x402 on base. NOTHING was charged and nothing was created — a 402 is only the invoice, so retrying is always safe. To pay: sign the requirements in `accepts` (also base64-JSON in the PAYMENT-REQUIRED response header) and retry the SAME request with a PAYMENT-SIGNATURE header (the x402 v2 name; X-PAYMENT is accepted too). Easiest path: run `npx fiatdock-mcp` with AGENT_PRIVATE_KEY set to a Base wallet holding USDC — it signs and retries for you.",
  "error": "payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xeB12bB2f52EeD33DBa6A00774E48324032Fd87C6",
      "amount": "4500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "howToPay": {
    "step1": "Sign an EIP-3009 transferWithAuthorization. The EIP-712 domain is {name, version} from `extra`, chainId from `network`, verifyingContract = `asset`. The message is the `authorization` object below.",
    "step2": "Fill in the placeholders below, then base64(JSON.stringify(envelope)).",
    "step3": "Send it as the PAYMENT-SIGNATURE request header (X-PAYMENT is also accepted) and retry the SAME request.",
    "noWallet": "No signer? `npx fiatdock-mcp` with AGENT_PRIVATE_KEY set to a Base wallet holding USDC signs and retries automatically.",
    "notCharged": "A 402 costs nothing — it is the price, not a bill. Retrying is always safe.",
    "payloadTemplate": {
      "scheme": "exact",
      "network": "eip155:8453",
      "payload": {
        "signature": "<0x + 130 hex: your EIP-712 signature>",
        "authorization": {
          "to": "0xeB12bB2f52EeD33DBa6A00774E48324032Fd87C6",
          "from": "<0x + your wallet address>",
          "nonce": "<0x + 64 hex: 32 random bytes, never reused>",
          "value": "4500",
          "validAfter": "0",
          "validBefore": "<unix seconds, e.g. now + 60>"
        }
      },
      "accepted": {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xeB12bB2f52EeD33DBa6A00774E48324032Fd87C6",
        "amount": "4500",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      "x402Version": 2
    }
  },
  "priceUsd": 0.0045,
  "freeAlternative": "GET https://fiatdock.com/v1/token/price?symbol=ETH (free) and GET https://fiatdock.com/v1/quote (free)"
}

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",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xeB12bB2f52EeD33DBa6A00774E48324032Fd87C6",
    "amount": "4500",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "limit": 1,
          "period": "annual",
          "ticker": "AAPL"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "asOf": "2026-10-08T16:26:17.849Z",
          "note": "As filed in XBRL (us-gaap, USD, consolidated — no segment facts). annual = facts from a 10-K-family filing tagged FY with a 350-380-day duration; quarterly = 80-100-day durations from any 10-K/10-Q filing; balance-sheet items are the values AT the period end. When several filings report the same period, the most recently filed value of the first tag in the field's fallback order is used (restatements win); `concepts` says which tag each value came from. Missing is null — nothing is computed: no Q4 derived from the year, no liabilities derived from assets minus equity, and since 10-Q cash flows are year-to-date, quarterly operating cash flow is null wherever no three-month figure was tagged. A quarterly row exists only for a period with a tagged three-month figure, so a fourth quarter appears only when the 10-K tags three months (many do not — the year is under period=annual). fiscalYear is the year the company's own report for that period states; null when the data holds that period only as a later filing's comparative. Public-domain data from SEC EDGAR; not investment advice.",
          "period": "annual",
          "source": "SEC EDGAR XBRL company facts (data.sec.gov)",
          "company": {
            "cik": "0000320193",
            "name": "Apple Inc.",
            "ticker": "AAPL"
          },
          "periods": [
            {
              "form": "10-K",
              "filed": "2025-10-31",
              "revenue": 416161000000,
              "concepts": {
                "revenue": "RevenueFromContractWithCustomerExcludingAssessedTax",
                "netIncome": "NetIncomeLoss",
                "epsDiluted": "EarningsPerShareDiluted",
                "totalAssets": "Assets",
                "totalLiabilities": "Liabilities",
                "operatingCashFlow": "NetCashProvidedByUsedInOperatingActivities",
                "sharesOutstanding": "CommonStockSharesOutstanding",
                "cashAndEquivalents": "CashAndCashEquivalentsAtCarryingValue",
                "stockholdersEquity": "StockholdersEquity"
              },
              "filingUrl": "https://www.sec.gov/Archives/edgar/data/320193/000032019325000079/",
              "netIncome": 112010000000,
              "periodEnd": "2025-09-27",
              "epsDiluted": 7.46,
              "fiscalYear": 2025,
              "latestFiled": "2026-07-31",
              "totalAssets": 359241000000,
              "fiscalPeriod": "FY",
              "accessionNumber": "0000320193-25-000079",
              "totalLiabilities": 285508000000,
              "operatingCashFlow": 111482000000,
              "sharesOutstanding": 14773260000,
              "cashAndEquivalents": 35934000000,
              "stockholdersEquity": 73733000000
            }
          ],
          "concepts": {
            "revenue": {
              "used": [
                "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax"
              ],
              "order": [
                "us-gaap:Revenues",
                "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
                "us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax",
                "us-gaap:SalesRevenueNet",
                "us-gaap:SalesRevenueGoodsNet",
                "us-gaap:SalesRevenueServicesNet",
                "us-gaap:RevenuesNetOfInterestExpense"
              ]
            }
          },
          "currency": "USD"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "required": [],
              "properties": {
                "limit": {
                  "type": "integer",
                  "example": 4,
                  "maximum": 12,
                  "minimum": 1,
                  "description": "How many periods, newest first, 1-12 (default 4)"
                },
                "period": {
                  "enum": [
                    "annual",
                    "quarterly"
                  ],
                  "type": "string",
                  "example": "annual",
                  "description": "annual (fiscal years, from 10-K filings; default) or quarterly (three-month periods)"
                },
                "ticker": {
                  "type": "string",
                  "example": "AAPL",
                  "maxLength": 10,
                  "description": "Stock ticker (AAPL, MSFT, BRK-B) or the company's SEC CIK number"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-10-12 13:26Z

Last indexed by Roundhouse

2026-10-26 17:30Z

Last enriched (probe, favicon, geo)

2026-10-12 04:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402