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Synthex Forge — x402 Paid Agent Services

Rates Reference

rates_reference
Read-onlyIdempotent

Signed reference rates, always as-of stamped. FX leg is the ECB euro reference rates (official, daily); crypto leg is the Binance public spot bookTicker. On a weekend or holiday the LAST BUSINESS DAY is returned with is_stale=true and the real staleness in seconds — a stale rate is never presented as live.

VALUE: What is this amount worth right now?

PRICE: $0.01 USDC per call.

HOW TO PAY: USDC on eip155:8453, exact scheme, to 0xc8fF67FAE72596478599EAAcfad8656fAe1113c8. Sign an EIP-3009 transferWithAuthorization for the exact amount and put it in the X-PAYMENT header, then retry the same call. An unpaid call returns a payment_required payload with the amount, asset, network and payTo already filled in. The synthex-x402 SDK (PyPI and npm) does the 402 -> sign -> retry loop in one call.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
baseNo
quoteNo
symbolNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed4 schema fields changed
    • removedInput schema / properties / base / description
      Removed value: -"Base currency, e.g. 'EUR'."
    • removedInput schema / properties / quote / description
      Removed value: -"Quote currency, e.g. 'USD'."
    • removedInput schema / properties / symbol / description
      Removed value: -"Crypto symbol for the crypto leg, e.g. 'BTCUSDT'."
    • removedInput schema / required
      Removed value: -[]
  2. First observed

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