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Get Fx Rate

GET/v1/stockmarket/fx/rates

Latest stored FX rate (rate = quote ccy per 1 base ccy; AUDUSD = USD per AUD). FRED (Fed noon buying rate) preferred over the market-data fallback — the same rate the ``currency=AUD`` commodity conversions use, exposed so consumers can convert anything else themselves.

Price

$0.01/ call

Edge cache

3600s

Uptime 24h

99.65%

p95

316ms

MCP tool

stockmarket_fx-rates

Parameters

NameInTypeDescription
pair query string = AUDUSD Currency pair (base+quote, e.g. AUDUSD)

Code

curl
# 1. No key, no payment: the gateway answers 402 with the price
curl -i "https://api.realtimeapi.ai/v1/stockmarket/fx/rates"

# 2. Pay: retry with a signed x402 payment (any x402 client builds this header)
curl "https://api.realtimeapi.ai/v1/stockmarket/fx/rates" -H "PAYMENT-SIGNATURE: $X402_PAYMENT"
TypeScript · @x402/fetch
// npm i @x402/fetch @x402/core @x402/evm viem
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = x402Client.fromConfig({ schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(privateKeyToAccount(PRIVATE_KEY)) }] });
const pay = wrapFetchWithPayment(fetch, client);
const data = await (await pay("https://api.realtimeapi.ai/v1/stockmarket/fx/rates")).json();
console.log(data);
Python · x402
# pip install x402 eth-account requests
from eth_account import Account
from x402.clients.requests import x402_requests

session = x402_requests(Account.from_key(PRIVATE_KEY))
print(session.get("https://api.realtimeapi.ai/v1/stockmarket/fx/rates").json())
With an API key
curl "https://api.realtimeapi.ai/v1/stockmarket/fx/rates" -H "X-API-Key: $RTAPI_KEY"

Frequently asked questions

How do I get get fx rate from StockMarketAPI?

Send GET https://api.realtimeapi.ai/v1/stockmarket/fx/rates. Pay $0.01 per request with x402, or send an X-API-Key header.

What does GET /fx/rates cost?

$0.01 per successful request in USDC on Base. Failed requests are never charged.

Can I call this endpoint from an MCP client?

Yes. Connect any MCP client to the RealtimeAPI server and use call_feed with this endpoint's URL, or get_quote to check the price first.

Get a free key

1,000 calls a month across every feed. Who is setting it up?

No key needed at all: agents can pay per call in USDC with x402.