CurrencyAPI
✓ Official Vendor SpecData EnrichmentData TransformationapiKey5 EndpointsREST
For Agents
Fetch latest, historical, and date-range FX rates and convert currency amounts via CurrencyAPI. Useful for AI agents that price multi-currency carts, generate financial reports, or normalise transactional data.
Use for: Get the latest USD to EUR exchange rate, I want to convert 100 GBP to JPY at today's rate, Retrieve the EUR to USD rate on 2024-12-31, Get exchange rates for a date range to chart trend
Not supported: Does not handle FX execution, hedging, or money movement — use for CurrencyAPI exchange-rate lookups and currency listing only.
CurrencyAPI provides reliable foreign exchange and currency conversion data through a small, focused REST surface. Endpoints return latest exchange rates, historical rates for a specified date, rates for a date range, the list of supported currencies, and account status. Responses are JSON with rates expressed against a chosen base currency. Authentication uses the apikey query parameter, making it straightforward to call from server-side jobs, spreadsheets, or AI agents that price products or convert balances.
Install Jentic One Beta
Connect the CurrencyAPI to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the CurrencyAPI, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
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Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh2
Step 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
Capabilities
What an agent can do with CurrencyAPI API.
Fetch latest exchange rates for a base currency via GET /latest
Look up historical exchange rates for a specified date via GET /historical
Pull a range of historical rates between two dates via GET /range
List supported fiat and crypto currencies via GET /currencies
Check account status, plan, and quota via GET /status
Use Cases
Patterns agents use CurrencyAPI API for, with concrete tasks.
★ Multi-Currency Checkout Pricing
An e-commerce agent serving global customers can call /latest with the store's base currency and convert displayed prices on the fly. Cache rates per currency for an hour or a day depending on volatility tolerance, and call /currencies to render a supported-currency picker. The result is accurate cart pricing without writing FX logic in the storefront.
Call GET /latest with base_currency=USD and currencies=EUR,GBP,JPY then multiply cart totals by the returned rates.
Financial Reporting and Reconciliation
A finance team can use /historical and /range to convert past transactions to a reporting currency on the date they occurred. The API supports specifying a base currency and target list, so the agent can produce period-over-period reports that respect spot rates rather than current rates. Cache historical rates indefinitely because they do not change.
Call GET /historical with date=2024-12-31 and base_currency=USD to value year-end EUR balances in USD.
FX Rate Trend Charting
An analytics dashboard can render exchange-rate charts using GET /range to retrieve the rate for each day in a window. Pair with /currencies to populate currency selectors and /status to show plan usage so the team can budget API calls.
Call GET /range with datetime_start and datetime_end covering the last 90 days for base_currency=USD and currencies=EUR.
AI Agent Integration via Jentic
An AI assistant that handles money can use Jentic to discover CurrencyAPI rather than embedding the apikey query parameter in code. The agent searches for an intent like 'get the latest USD to EUR exchange rate', loads the schema, and runs the call against the credentials Jentic stores.
Use Jentic search for 'get the latest exchange rate' and execute the matching GET /latest operation with base_currency=USD.
Key Endpoints
5 endpoints — currencyapi provides reliable foreign exchange and currency conversion data through a small, focused rest surface.
METHOD
PATH
DESCRIPTION
GET
/latest
Get latest exchange rates
GET
/historical
Get exchange rates for a specific past date
GET
/range
Get exchange rates for a date range
GET
/currencies
List supported currencies
GET
/status
Get API account status
GET
/latest
Get latest exchange rates
GET
/historical
Get exchange rates for a specific past date
GET
/range
Get exchange rates for a date range
GET
/currencies
List supported currencies
GET
/status
Get API account status
Why Jentic?
Three things that make agents converge on Jentic-routed access.
Credential isolation
The CurrencyAPI apikey query parameter is stored encrypted in the Jentic MAXsystem vault and added to the URL at request time. Agents see scoped tool access, never the raw key.
Intent-based discovery
Agents search Jentic by intent (for example 'get the latest exchange rate') and Jentic returns the matching CurrencyAPI operation with its input schema, so the agent does not have to memorise base_currency and currencies parameters.
Time to first call
Direct integration is a couple of hours to handle the apikey, parse responses, and cache. Through Jentic the integration is under 15 minutes because the operations are exposed as tools.
Related APIs
Alternatives and complements available in the Jentic catalogue.
FAQs
Specific to using CurrencyAPI API through Jentic.
What authentication does the CurrencyAPI use?
CurrencyAPI uses an API key passed as the apikey query parameter on every request. Through Jentic the key is stored in the encrypted MAXsystem vault and added to the request URL at execution time so it never appears in the agent's prompt or logs.
Can I get historical exchange rates with CurrencyAPI?
Yes. Call GET /historical with a date parameter to retrieve the rates as of that date. For a series of dates use GET /range with datetime_start and datetime_end to pull a continuous window in one request.
What are the rate limits for CurrencyAPI?
Rate limits depend on the plan attached to your API key, with a free tier and several paid tiers. Call GET /status to read the current account quota and remaining calls before running a large historical pull.
How do I convert currency at the latest rate using CurrencyAPI through Jentic?
Run pip install jentic, search Jentic for 'get the latest exchange rate', load the schema for GET /latest, and execute it with base_currency and the target currencies. Multiply the amount you want to convert by the returned rate to get the converted value.
Which currencies does CurrencyAPI support?
CurrencyAPI covers a wide list of fiat currencies and a selection of cryptocurrencies. Call GET /currencies to fetch the full machine-readable list, including ISO codes and human-readable names, before building a currency picker.
Is CurrencyAPI free?
CurrencyAPI offers a free tier suitable for low-volume use and several paid tiers with higher quotas, historical access, and faster updates. Pricing details are on currencyapi.com rather than in the OpenAPI spec.
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