currencylayer MCP by usefulapi

io.usefulapiPublished by usefulapi.ioOfficial publisherv1.7.4Updated Nov 7, 2026

Read and calculate currency exchange rates with your paid currencylayer account.

The publisher's own server: Ably MCP by usefulapi

VerifiedStreamable HTTPWeb executableFinance Data & Analytics

Server details

Identifier: io.usefulapi/currencylayer
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Oct 31, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to usefulapi.io, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Remote MCP server that lets an assistant look up live and historical currency exchange rates and convert amounts using a paid currencylayer account.

What you can do: Fetch live exchange rates for up to 174 currencies and precious metals against a source currency
Look up rates for a single past date back to 1999
Convert an amount between currencies at live or historical rates
Retrieve daily rates across a date range of up to 365 days
Compare rates between two dates with absolute and percentage change
Check monthly usage, request a feature, upgrade or cancel a plan
When to use it: Useful when you need currency conversion or exchange-rate figures inside a chat, such as pricing in another currency, checking a rate on a specific past date, or reviewing how a pair moved over a period. It suits users who already have a currencylayer account and accept a metered, paid service.
Requirements: A remote endpoint added by URL only; no API key or Authorization header goes in the client config. Sign-in is via OAuth, and the login page asks for your currencylayer credentials. A currencylayer account with a plan is needed: the free tier allows 50 tool calls per month, and conversion needs the Basic plan or higher, date ranges the Enterprise plan or higher.

Before you install

Every rate tool spends one request of the monthly quota, even when it fails after authentication. Paid plans are billed through a Stripe Checkout link returned by the upgrade tool, and cancelling gives no refund for the current period. The README labels the rate tools as write tools that clients should confirm, even though they only read rates. Your currencylayer credentials are entered on the server's login page.

Installation

In SourceWeft

Open currencylayer MCP by usefulapi in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.usefulapi%2Fcurrencylayer/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "currencylayer-by-usefulapi": {
      "type": "http",
      "url": "https://currencylayer.usefulapi.io/mcp"
    }
  }
}

README

currencylayer MCP by usefulapi

Read and calculate exchange rates with your paid currencylayer account.

Connect

Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://currencylayer.usefulapi.io/mcp.
Claude Code: claude mcp add --transport http currencylayer https://currencylayer.usefulapi.io/mcp, then run /mcp to log in.
VS Code: Add to VS Code.
Cursor and other clients: add the URL as a remote MCP server:

json

{  "mcpServers": {    "currencylayer": {      "url": "https://currencylayer.usefulapi.io/mcp"    }  }}

{  "mcpServers": {    "currencylayer": {      "url": "https://currencylayer.usefulapi.io/mcp"    }  }}

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your currencylayer credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/currencylayer/

Tools

Tool	Type	What it does
`currencylayer_get_live_rates`	write	Get live exchange rates
`currencylayer_get_historical_rates`	write	Get historical exchange rates
`currencylayer_convert_currency`	write	Convert an amount
`currencylayer_get_timeframe_rates`	write	Get exchange rates for a date range
`currencylayer_get_rate_changes`	write	Get exchange rate changes
`currencylayer_usage_status`	meta	Usage status (free-tier meter)
`currencylayer_request_feature`	meta	Request a missing feature
`currencylayer_upgrade`	meta	Upgrade to Pro or Pro+
`currencylayer_cancel_subscription`	meta	Cancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with currencylayer_upgrade (it returns a Stripe Checkout link). Cancel any time with currencylayer_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running currencylayer_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT

Source: servers/currencylayer/README.md at commit 4046075

Tools

currencylayer_get_live_rates

Get live exchange rates

SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Real-time exchange rates for up to 174 world currencies and precious metals relative to a source currency (default USD). Quotes are keyed by pair, e.g. USDEUR = 0.918 means 1 USD = 0.918 EUR. The free plan refreshes daily, higher plans hourly down to every 60 seconds. Use 'currencies' to limit the reply. GET /live.

Parameterssourcecurrencies

currencylayer_get_historical_rates

Get historical exchange rates

SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Exchange rates for one past date (data back to 1999 for most currencies; a currency added later has no data before its start date and the whole request then fails). Quotes are keyed by pair, e.g. USDEUR. Use 'currencies' to limit the reply. GET /historical.

Parametersdaterequiredsourcecurrencies

currencylayer_convert_currency

Convert an amount

SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Convert an amount from one currency to another with real-time rates, or with the rates of a past date. Returns the result and the quote used. Needs the Basic plan or higher. GET /convert.

Parameterstorequireddatefromrequiredamountrequired

currencylayer_get_timeframe_rates

Get exchange rates for a date range

SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). Daily exchange rates for every date from start_date to end_date (at most 365 days apart), one entry per date. Needs the Enterprise plan or higher. The reply must stay small: days x currencies may not exceed 2000 (without 'currencies' that is 174 per day), checked before the request is sent. GET /timeframe.

Parameterssourceend_daterequiredcurrenciesstart_daterequired

currencylayer_get_rate_changes

Get exchange rate changes

SPENDS 1 request of your currencylayer monthly quota per call (also when it fails after authentication; it is never retried). How exchange rates changed between two dates: per currency pair the start_rate, end_rate, absolute change and change_pct. Pass both dates or none (none = yesterday's end-of-day rate against the latest rate). Forex markets are closed on weekends, so a weekend change can be zero. Needs the Enterprise+ plan or higher. GET /change.

Parameterssourceend_datecurrenciesstart_date

Version history

v1.7.4LatestNov 7, 2026
v1.6.3Nov 5, 2026
v1.6.2Nov 5, 2026
v1.6.1Nov 4, 2026
v1.6.0Nov 3, 2026
v1.5.1Nov 3, 2026
v1.4.0Nov 1, 2026
v1.2.0Oct 31, 2026
v1.1.0Oct 31, 2026
v1.0.1Oct 31, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts

Business & Commerce5 toolsNov 7, 2026

Plan	Price	Limit
Free	$0	50 tool calls / month
Pro (per currencylayer access key)	$9/mo or $90/yr (2 months free)	Unlimited*