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Apiosk Gateway – Frankfurter Execute
x402
Apiosk Gateway – Frankfurter Execute is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Executes a Frankfurter currency exchange rate API operation via the Apiosk pay-per-call gateway using the x402 protocol (HTTP 402 + USDC on Base).
Price / call$0.05
Success—
StatusUnknown
How this service works
Pay-per-call API gateway on the x402 protocol (HTTP 402 + USDC on Base). This document covers the gateway's discovery and execution meta-endpoints. Individual provider APIs are reachable at /{api_slug}/{path} and described by GET /{api_slug}/metadata.
Output
Returns a JSON object containing: status (success/error), the upstream Frankfurter API response body (e.g. exchange rates, time series, or currency list), the operation invoked, latency in milliseconds, HTTP status from the upstream Frankfurter service, and the cost of the call in USDC.
Example use cases
Live invoice currency conversion
“I need to convert 2500 EUR to USD at today's rate for an invoice I'm generating — can you fetch the current EUR to USD exchange rate from Frankfurter?”
Historical rate lookup for accounting
“What was the exchange rate from GBP to EUR on March 15, 2024? I need it for a reconciliation report.”
Multi-currency rate snapshot
“Fetch today's exchange rates for USD as the base currency against EUR, GBP, JPY, and CHF all at once — I need a snapshot for a dashboard.”
Technical details
Endpoint
POSThttps://gateway.apiosk.com/frankfurter/executeWhen to prefer
Choose this endpoint when you need programmatic, pay-per-call access to Frankfurter exchange rate data (ECB-sourced) without managing API keys, subscriptions, or billing accounts — ideal for agents that need currency conversion or historical FX rates on demand and can pay micro-amounts in USDC via the x402 protocol on Base.
Side effects
- Invalid operation selector — returns error status if the operation ID or path does not match a valid Frankfurter endpoint
- Malformed JSON payload — upstream rejects the request if input JSON is invalid
- Unsupported currency code — Frankfurter returns 404 or error if currency symbol is not in its dataset
- Payment failure — x402 payment not confirmed, gateway rejects the call before forwarding
- Date out of range — Frankfurter only has ECB data from 1999-01-04; earlier dates return an error
- Network/upstream timeout — latency field may be high and result may be null
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | JSON payload forwarded to the selected operation. |
| operation | string | Operation id, /path, or METHOD /path selector. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| api | string | |
| cost | string | |
| resultrequired | — | Upstream response body. |
| statusrequired | string | |
| latency | number | |
| operation | string | |
| upstream_status | integer |
Tags
x402
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