Fixer MCP server

Connect Fixer to Claude, ChatGPT, Cursor, Claude Code, Codex, Gemini, GitHub Copilot and any other MCP client, for your whole team. Metorial adds security, governance, and tracing, and gives everyone one Magic MCP URL to connect.

What you can do with the Fixer MCP server

Ask your agent in plain language. Each of these maps to a real tool on the server.

  • Use the get time series tool in Fixer
  • Use the get exchange rates tool in Fixer
  • Use the convert currency tool in Fixer
  • Use the get fluctuation tool in Fixer
  • Use the get historical rates tool in Fixer
  • Use the list currencies tool in Fixer

Supported Tools

get_time_series

Get Time Series

Retrieve daily exchange rate data between two dates. Returns rates for each day in the specified range, useful for charting and trend analysis.

get_exchange_rates

Get Exchange Rates

Retrieve the latest real-time exchange rates for world currencies. Returns rates relative to a base currency (defaults to EUR). You can filter the response to specific target currencies by providing a list of currency symbols.

convert_currency

Convert Currency

Convert an amount from one currency to another using real-time or historical exchange rates. Specify a date to use historical rates for the conversion.

get_fluctuation

Get Fluctuation

Retrieve currency fluctuation data between two dates. Returns the start rate, end rate, absolute change, and percentage change for each currency across the requested period.

get_historical_rates

Get Historical Rates

Retrieve end-of-day exchange rates for a specific historical date. Historical data is available back to January 1, 1999. Rates become available at 00:05 AM GMT for the previous day.

list_currencies

List Currencies

Retrieve all currencies supported by Fixer. Returns a map of currency codes to their full names, covering 170+ world currencies including Bitcoin, Gold, and Silver.

Connect Fixer to your AI client

Every client uses the same Magic MCP URL, and so does any other MCP client. Add it once and sign in with SSO.

  1. Enable Fixer in Metorial. In your Metorial portal, enable the Fixer MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
  2. Add a custom connector. Open Customize, then Connectors. Select Add, then Custom, then Web.
  3. Paste your Metorial MCP URL. Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>) and continue.
  4. Sign in. Select Add and sign in to load Fixer tools.

Run Fixer through the Metorial gateway

One governed layer for every app your agents reach, not a separate connector per tool.

  • Give Fixer and every other app to your whole team through one MCP gateway, behind your SSO.
  • Scope which teams and agents can use Fixer tools with role-based access control, and trace every call.
  • Prefer to run it yourself? Metorial is open source and self-hostable.

More integrations teams use with Fixer

Zoho

Manage Zoho CRM, Bigin, Books, Inventory, Invoice, Desk, Mail, People, and Projects from one connection. Discover organizations and accounts, manage records and financial documents, work with support tickets and email, and organize employee and project data.

Quickbooks

Manage business finances and accounting in QuickBooks Online. Create, send, and track invoices. Manage bills and accounts payable, record bill payments. Create and update customer and vendor records with contact details and hierarchies. Record payments against invoices and credit memos. Create estimates, sales receipts, and journal entries. Track expenses and categorize against the chart of accounts. Manage items, products, services, and inventory levels. Query entities using SQL-like syntax and sync incremental changes via Change Data Capture. Generate financial reports including profit and loss, balance sheet, and cash flow. Process credit card and bank account (ACH) payments via the Payments API. Manage the chart of accounts for tracking income, expenses, assets, and liabilities.

Square

Process payments, manage orders, and handle invoices for online, in-app, and in-person commerce. Create and manage customer profiles, catalog items, inventory counts, and locations. Issue refunds, manage disputes, and track payouts. Create bookings and appointments, manage team members and timecards, handle gift cards and loyalty programs, and manage subscriptions. Save cards on file, generate checkout links, connect and control Square Terminal devices, and manage vendor/supplier information. Extend Square objects with custom attributes. Receive webhook notifications for payments, orders, customers, inventory, invoices, bookings, disputes, team changes, and more.

Freeagent

Manage FreeAgent contacts, invoices, estimates, supplier bills, expenses, projects, tasks, and timeslips. Browse bank accounts and transactions, identify the connected user, download invoice PDFs, and retrieve financial reports.

Gumroad

Manage digital and physical product sales on Gumroad. View and update product metadata, create and manage variant categories and options, and configure discount offer codes. Retrieve and filter sales data by date range for reporting. Manage subscribers and subscription lifecycles for recurring products. Refund sales, revoke or restore buyer access, and track payouts. Verify, enable, disable, and decrement license keys for purchase validation. Draft, schedule, and send audience emails to customers and followers. Read product reviews and access authenticated user profile information.

Harvest

Track time, manage projects, clients, tasks, users, expenses, invoices, and estimates. Discover authorized accounts and your current profile, browse business records, generate structured reports, email invoices, and record invoice lifecycle events.

Technical notes for Fixer

Retrieve real-time and historical foreign exchange rate data for 170+ world currencies. Convert amounts between currencies, query historical rates back to 1999, fetch time-series data for date ranges up to 365 days, and get fluctuation data showing day-to-day currency changes. List all supported currencies including Bitcoin, Gold, and Silver.

Frequently asked questions

Common questions about connecting Fixer to AI agents with Metorial.

  1. How many tools does the Fixer MCP server have?
    The Fixer MCP server exposes 6 tools, including Get Time Series, Get Exchange Rates, Convert Currency. Each one is governed and traced through Metorial.
  2. Fixer exposes tools your agents call on demand; it does not publish event triggers yet. Everything still runs through one governed MCP URL.
  3. Any MCP client, including VS Code, Windsurf, Zed, OpenCode and Grok. Each one reaches the Fixer MCP server through the same Metorial URL.
  4. Use role-based access control to decide which teams, users, and agents can use Fixer and which of its tools they can call.
  5. Yes. Metorial is open source, so you can run the Fixer MCP server yourself or use the hosted gateway.

Connect Fixer to production AI agents

See how Metorial gives your team governed access to Fixer, with tracing and security controls built in.