How to connect Fixer.io to OpenClaw
Connect Fixer.io to OpenClaw with ClawLink: paste your Fixer.io key once and 5 tools work from chat. No MCP server to run, nothing stored on your machine.
Fixer.ioAPI KEYMCPFixer.io is a simple and lightweight API for current and historical foreign exchange rates and currency conversion.. Once connected, OpenClaw can read and act on Fixer.io from chat — pairing, token refresh, and tool wiring handled for you.
The usual route to Fixer.io access for OpenClaw is an MCP server you configure and keep running, plus your own OAuth app or API keys. ClawLink gives OpenClaw a more practical Fixer.io setup: install one ClawHub skill, connect Fixer.io in the browser, and OpenClaw can call real Fixer.io actions from any chat surface with no auth, token refresh, or tool wiring to build yourself.
Setup
It takes three steps to connect OpenClaw to Fixer.io.
1Install the plugin
Paste the setup prompt into OpenClaw, or install from the terminal and ask OpenClaw to pair:
openclaw plugins install clawhub:clawlink-plugin- 2
Connect Fixer.io
Paste your API key in the dashboard.
- 3
Use it from chat
Ask OpenClaw: "What can you do with Fixer.io?"
Install by command
The setup prompt above does all of this in one paste. By hand, it is one install command plus a browser approval:
openclaw plugins install clawhub:clawlink-pluginThen ask OpenClaw to set up ClawLink. It starts browser pairing and prints an approval link — open it, approve the device, return to the chat, and say done. Finally, connect Fixer.io in the ClawLink dashboard — paste your Fixer.io API key once.
Verify the connection by asking OpenClaw:
Use Fixer.io to convert currency and walk me through the result in plain English.
Using a different agent?
The OpenClaw plugin is one client of ClawLink's MCP server. Claude Code, Cursor, Codex, or any agent that can run a shell command pairs with the same ClawLink account through the CLI:
npx -y @useclawlink/cli loginlogin opens the same browser approval and stores a credential locally. Once Fixer.io is connected in the dashboard, that agent calls the same 5 Fixer.io tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
Fixer.io MCP for OpenClaw
Looking for a Fixer.io MCP server for OpenClaw? ClawLink connects Fixer.io to OpenClaw and exposes 5 Fixer.io tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using Hermes instead? The Hermes Fixer.io integration works the same way.
What the OpenClaw Fixer.io integration can do
5 Fixer.io tools are ready for OpenClaw once the account is connected.
All 5 Fixer.io tools for OpenClaw
| Tool | What it does |
|---|---|
Convert currency fixer_io_convert_currency | Convert an amount from one currency to another |
Get fluctuation fixer_io_get_fluctuation | Fetch exchange rate fluctuations between two dates |
Get historical rates fixer_io_get_historical_rates | Fetch historical exchange rates for a specific date |
Get supported symbols fixer_io_get_supported_symbols | Retrieve the list of all available currency symbols and their corresponding names |
Get time series fixer_io_get_time_series | Retrieves daily foreign exchange rates for a date range |
Try it: find the Fixer.io tool you need
Browse the 5 Fixer.io tools
Click any tool to see exactly what OpenClaw can do and copy a ready-to-use prompt.
Example prompts
Use Fixer.io to convert currency and walk me through the result in plain English.
Pull the relevant data from Fixer.io, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from Fixer.io, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from Fixer.io, summarize it in plain English, and point out anything that needs attention.
ClawLink vs. building it yourself
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for OpenClaw. That is fine if you want to build and maintain the integration yourself. Most teams just want Fixer.io working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the Fixer.io API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected Fixer.io account becomes available to the agent without you building credential management. |
| Ongoing maintenance | You own refresh logic, permission debugging, environment config, and every provider-specific edge case for Fixer.io. | ClawLink handles the repetitive integration plumbing so your team can focus on the workflow instead of the infrastructure. |
| Agent usability | You still need to expose the right Fixer.io actions to the runtime in a format your agent can reliably use. | 5 tools for Fixer.io are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes Fixer.io to AI agents. It is developer infrastructure: Python and TypeScript SDKs, an MCP server, and a catalog past 1,000 apps, aimed at teams shipping agent products. ClawLink is built for OpenClaw users instead. You install the plugin once, connect Fixer.io in the browser, and the 5 tools above work from chat. There is no SDK and no config file, and the Fixer.io key you paste at setup is stored server-side rather than kept in your environment. Choosing between them? Read the full Composio alternatives comparison.
Troubleshooting
OpenClaw installed the Fixer.io skill but can't call the tools
The ClawHub skill teaches OpenClaw about Fixer.io, but the calls run through the ClawLink plugin and your connected account. Make sure Fixer.io is connected in the dashboard, then start a fresh chat so OpenClaw reloads the tool catalog. If OpenClaw runs as a persistent gateway, restart it so the new tools register.
Connection succeeds but no tools appear
Reconnect Fixer.io from the dashboard, then start a fresh chat if the runtime still has the old tool catalog loaded.
"Tool schema not loaded yet" error when calling Fixer.io tools
Fixer.io tool schemas load on demand the first time a tool runs and are cached after that, so this error usually clears on its own: wait a few seconds and retry the same request. If every Fixer.io call keeps failing with it in a fresh chat, reconnect from the dashboard, and contact support if it still persists — that pattern points to a configuration problem on our side, not something you can fix by reconnecting again.
Fixer.io returns 403 or "permission denied" on one action while others work
Two usual causes. The connected account may not have access to the specific workspace, inbox, store, or project in the request — check that first. If access looks right, the agent may have sent a placeholder value (like "YOUR_ID" or an example id from documentation) instead of a real one: ask it to run a list or search tool first, then retry the action with a real id from those results. Most failures at this stage are one of these two, not ClawLink bugs.
API key setup works but results look incomplete
Double-check that the API key for Fixer.io has the right scopes or account access. A valid key can still be too limited for some reads or writes.
FAQ
Is there a OpenClaw Fixer.io integration?
Yes. ClawLink is the fastest way to connect OpenClaw to Fixer.io: link your Fixer.io account once in the browser and OpenClaw can call the Fixer.io API through 5 ready-made tools — no custom code or token handling.
How do I add Fixer.io to OpenClaw with ClawLink?
Paste the setup prompt from this page into OpenClaw. It installs the ClawLink Fixer.io skill from ClawHub, then you click Connect in the dashboard to authorize Fixer.io. OpenClaw calls the tools from the next message — no config files, and the Fixer.io key you paste is stored server-side instead of in your environment.
How long does it take to connect Fixer.io to OpenClaw?
About two minutes. Sign in, click Connect next to Fixer.io in the dashboard, authenticate, and OpenClaw can use it from the next chat message.
Why use ClawLink instead of wiring Fixer.io up myself?
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for OpenClaw. That is fine if you want to build and maintain the integration yourself. Most teams just want Fixer.io working from chat.
OpenClaw installed the Fixer.io skill but can't call the tools
The ClawHub skill teaches OpenClaw about Fixer.io, but the calls run through the ClawLink plugin and your connected account. Make sure Fixer.io is connected in the dashboard, then start a fresh chat so OpenClaw reloads the tool catalog. If OpenClaw runs as a persistent gateway, restart it so the new tools register.
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