Read and calculate currency exchange rates with your paid currencylayer account. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the currencylayer connector, then ask in plain words. The AI picks the tools.
For business teams with a paid currencylayer account, using rates for their internal operations.
Read the latest rates for selected currency pairs. Every request spends vendor quota and may incur plan overage charges.
Changes dataRead exchange rates on a selected date using the features available on your vendor plan.
Changes dataCalculate a currency conversion. This spends API quota and does not trade or transfer money.
Changes dataThe login page asks for your currencylayer access key.
Use a paid currencylayer plan that permits commercial use and authorize this connection only for your own internal business operations. Copy the access key from your currencylayer dashboard. By connecting, you appoint usefulapi as your outsourcing provider under the currencylayer connection terms; your vendor subscription and API limits still apply. Every call, including login, spends API quota and may cause vendor overage charges. Requested currency pairs, amounts, dates and rate results pass to your chosen AI client and its LLM provider. These five tools read or calculate rates; they do not trade or transfer money. API requests use HTTPS only and are never retried. Reset the key in currencylayer to stop access; a reset starts a new usage/billing identity.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"currencylayer": {
"url": "https://currencylayer.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"currencylayer": {
"type": "http",
"url": "https://currencylayer.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
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: the login page asks for your currencylayer access key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper currencylayer access key | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per currencylayer access key | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this currencylayer server only. Ask your AI to run currencylayer_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with currencylayer_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with currencylayer_upgrade before then undoes the cancel. Or write to [email protected].
currencylayer_get_live_ratescurrencylayer_get_historical_ratescurrencylayer_convert_currencycurrencylayer_get_timeframe_ratescurrencylayer_get_rate_changescurrencylayer_usage_statuscurrencylayer_request_featurecurrencylayer_upgradecurrencylayer_cancel_subscriptionLook up current exchange rates. Review a historical rate. Convert an amount. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by currencylayer. The server calls the currencylayer API with your own currencylayer access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your currencylayer access key. See Before you connect for where to find it.
No. 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: the login page asks for your currencylayer access key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the currencylayer API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in currencylayer.
Yes, if you approve it. 5 of the 5 currencylayer tools can create or change data. The other 0 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this currencylayer server only. Cancel any time: your paid plan then runs to the end of the paid period. Run currencylayer_usage_status to see how many calls you used.
Ask the AI to run currencylayer_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run currencylayer_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with currencylayer_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.