Portable intent card · finance

Currency exchange rates API for agents

Daily ECB reference FX (EUR/USD/BRL and published pairs) for $0.001 with attribution—informational only, not a live broker quote or trade.

currency exchange rates APIFX rates APIforex reference ratesECB exchange ratescurrency conversion for agentsx402 finance APIEUR USD BRL rates

Intent to transaction

One command, attributed.

The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.

npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/fx-rates -m POST -H 'x-delx-source: intent-card-currency-exchange-rates-api' --max-amount 0.001 -b '{"base_currency":"USD","quotes":["EUR","BRL"]}'

Example inputPOST /api/v1/x402/fx-rates

{
  "base_currency": "USD",
  "quotes": [
    "EUR",
    "BRL"
  ]
}

Agent discoverydelx/intent-card/v1

{
  "intent": "get currency exchange rates for an agent",
  "tool_name": "get_fx_rates_ecb",
  "price_usdc": "0.001",
  "machine_url": "https://commerce.delx.ai/intents/currency-exchange-rates-api.json"
}

Portable and inspectable

Currency exchange rates API for agents

One command, attributed.

Share the intent, not a directory search.

More intent cards.