CurrencyBeacon API

★ Only Publicly Available OpenAPI DocumentData EnrichmentData TransformationapiKey, bearer5 EndpointsREST

For Agents

Pull real-time and historical FX rates, convert currency, and read time-series data via CurrencyBeacon. Useful for AI agents that price multi-currency carts, build FX charts, or normalise transaction data.

Install Jentic One Beta

Connect the CurrencyBeacon API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the CurrencyBeacon API, 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.

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 | sh

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 instance

Jentic 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 CurrencyBeacon API.

Pull latest exchange rates for a base currency via GET /latest

Look up historical exchange rates for a date via GET /historical

Convert an amount between two currencies via GET /convert

GET STARTED

Start building with CurrencyBeacon API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI specification for CurrencyBeacon API, keeping it validated and agent-ready. CurrencyBeacon (formerly CurrencyScoop) provides real-time and historical foreign exchange rates covering 168+ world currencies and 2,000+ cryptocurrencies, with rates updated every 60 seconds. Endpoints return latest rates, historical rates for a date, currency conversion, time-series data over a window, and the list of supported currencies. Authentication accepts either an api_key query parameter or a bearer token in the Authorization header, suitable for both quick scripting and production agent integrations.

Use Cases

Patterns agents use CurrencyBeacon API for, with concrete tasks.

★ Real-Time Multi-Currency Pricing

An e-commerce or SaaS agent can fetch latest rates for the store's base currency every minute and reprice cart totals on the fly. CurrencyBeacon's 60-second update cadence is fast enough for live displays, and the /currencies endpoint feeds currency-picker UIs. Cache the response per minute to stay under the plan quota.

Call GET /latest with base=USD and symbols=EUR,GBP,JPY then multiply cart totals by the returned rates.

FX Time-Series Charts

An analytics dashboard can render exchange-rate trend charts using GET /timeseries to retrieve rates across a window in one call. CurrencyBeacon returns each date's rates against the chosen base, so the chart can be built with minimal client-side processing. Pair with /historical for spot lookups when users click on a single date.

Call GET /timeseries with start_date and end_date for the last 90 days and base=USD to populate the chart.

Transaction Conversion for Audit Reports

A finance agent can use the /convert endpoint to express each transaction in the reporting currency at the rate of the transaction date. By passing date along with from, to, and amount, the agent reproduces audit-grade values without writing its own multiplication logic.

For each transaction, call GET /convert with from, to, amount, and the transaction date and store the converted amount.

AI Agent Integration via Jentic

An AI assistant that handles money can use Jentic to discover CurrencyBeacon rather than hard-coding the api_key query parameter. The agent searches for an intent like 'convert currency at the latest rate', loads the schema, and runs the call against credentials Jentic stores.

Use Jentic search for 'convert currency at the latest rate' and execute the matching GET /convert operation.

Key Endpoints

5 endpoints — jentic publishes the only available openapi specification for currencybeacon api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

GET

/latest

Get latest exchange rates

GET

/historical

Get historical exchange rates

GET

/convert

Convert an amount between currencies

GET

/timeseries

Get a time-series window of rates

GET

/currencies

List supported currencies

GET

/latest

Get latest exchange rates

GET

/historical

Get historical exchange rates

GET

/convert

Convert an amount between currencies

GET

/timeseries

Get a time-series window of rates

GET

/currencies

List supported currencies

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Your CurrencyBeacon API key or bearer token is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'convert currency at the latest rate', and Jentic returns the matching CurrencyBeacon operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

Time to first call

FAQs

Specific to using CurrencyBeacon API through Jentic.

Why is there no official OpenAPI spec for CurrencyBeacon API?

CurrencyBeacon does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call CurrencyBeacon API via structured tooling. It is validated against the live API and kept up to date. Get started with Jentic One, the self-hosted execution layer.

What authentication does the CurrencyBeacon API use?

CurrencyBeacon accepts either an api_key query parameter or a bearer token in the Authorization header. Through Jentic the credential is held in your Jentic One instance and applied per request, so the agent never handles the raw key.

Can I convert a currency amount with the CurrencyBeacon API?

Yes. Call GET /convert with from, to, and amount to get the converted value at the latest rate. Pass an optional date parameter to convert at a historical rate for an audit-grade calculation.

What are the rate limits for the CurrencyBeacon API?

Rate limits depend on the CurrencyBeacon plan tied to your key, ranging from a low free-tier quota to high commercial limits. Cache rate responses per minute or per day to fit comfortably inside the plan.

How do I pull a time-series of FX rates with the CurrencyBeacon API through Jentic?

Run pip install jentic, search Jentic for 'pull a time-series of FX rates', load the schema for GET /timeseries, and execute it with start_date, end_date, base, and symbols. Jentic handles the credential and returns the JSON response for charting.

Which currencies does CurrencyBeacon support?

CurrencyBeacon covers more than 168 fiat currencies and over 2,000 cryptocurrencies. Call GET /currencies to fetch the full machine-readable list, including ISO codes for fiat and ticker symbols for crypto.

Can I limit what my agent is allowed to do with the CurrencyBeacon API?

Yes. Because you run Jentic One yourself, your own rules decide which CurrencyBeacon operations and credentials the agent may use. This surface is read-only, so you can scope the agent to just the operations it needs, such as GET /latest and GET /convert, and leave GET /historical, GET /timeseries, or GET /currencies out of reach. Since currencies, dates, and amounts are passed as query parameters rather than IDs in the URL path, you control access at the operation level and the stored API key is applied only to the calls you allow.